National Library of Energy BETA

Sample records for independent transmission system

  1. On the Efficiency of the New York Independent System Operator Market for Transmission

    E-Print Network [OSTI]

    Oren, Shmuel S.

    On the Efficiency of the New York Independent System Operator Market for Transmission Congestion, as in New York state, where derivative transmission congestion contracts (TCCs) are traded, or in the more years 2000 and 2001, it appears that New York TCCs pro- vided market participants with a potentially

  2. Momentum-independent reflectionless transmission in the non-Hermitian time-reversal symmetric system

    SciTech Connect (OSTI)

    Zhang, X.Z.; Song, Z.

    2013-12-15

    We theoretically study the non-Hermitian systems, the non-Hermiticity of which arises from the unequal hopping amplitude (UHA) dimers. The distinguishing features of these models are that they have full real spectra if all of the eigenvectors are time-reversal (T) symmetric rather than parity-time-reversal (PT) symmetric, and that their Hermitian counterparts are shown to be an experimentally accessible system, which have the same topological structures as that of the original ones but modulated hopping amplitudes within the unbroken region. Under the reflectionless transmission condition, the scattering behavior of momentum-independent reflectionless transmission (RT) can be achieved in the concerned non-Hermitian system. This peculiar feature indicates that, for a certain class of non-Hermitian systems with a balanced combination of the RT dimers, the defects can appear fully invisible to an outside observer. -- Highlights: •We investigate the non-Hermitian system with time reversal symmetry. •The Hermitian counterpart is experimentally accessible system. •The behavior of momentum-independent reflectionless transmission can be achieved. •A balanced combination of reflectionless transmission dimers leads to invisibility. •It paves an alternative way for the design of invisible cloaking devices.

  3. Down hole transmission system

    DOE Patents [OSTI]

    Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT)

    2007-07-24

    A transmission system in a downhole component comprises a data transmission element in both ends of the downhole component. Each data transmission element houses an electrically conducting coil in a MCEI circular trough. The electrically conducting coil comprises at least two generally fractional loops. In the preferred embodiment, the transmission elements are connected by an electrical conductor. Preferably, the electrical conductor is a coaxial cable. Preferably, the MCEI trough comprises ferrite. In the preferred embodiment, the fractional loops are connected by a connecting cable. In one aspect of the present invention, the connecting cable is a pair of twisted wires. In one embodiment the connecting cable is a shielded pair of twisted wires. In another aspect of the present invention, the connecting cable is a coaxial cable. The connecting cable may be disposed outside of the MCEI circular trough.

  4. Downhole transmission system

    DOE Patents [OSTI]

    Hall, David R. (Provo, UT); Fox, Joe (Spanish Fork, UT)

    2008-01-15

    A transmission system in a downhole component comprises a data transmission element in both ends of the downhole component. Each data transmission element houses an electrically conducting coil in a MCEI circular trough. An electrical conductor connects both the transmission elements. The electrical conductor comprises at least three electrically conductive elements insulated from each other. In the preferred embodiment the electrical conductor comprises an electrically conducting outer shield, an electrically conducting inner shield and an electrical conducting core. In some embodiments of the present invention, the electrical conductor comprises an electrically insulating jacket. In other embodiments, the electrical conductor comprises a pair of twisted wires. In some embodiments, the electrical conductor comprises semi-conductive material.

  5. Vice President, Transmission System Operations

    Broader source: Energy.gov [DOE]

    The VP for Transmission System Operations provides strategic leadership, direction, and oversight of the people, business processes, and systems that are responsible for the safe, reliable, and...

  6. Hydraulic system for a ratio change transmission

    DOE Patents [OSTI]

    Kalns, Ilmars (Northville, MI)

    1981-01-01

    Disclosed is a drive assembly (10) for an electrically powered vehicle (12). The assembly includes a transaxle (16) having a two-speed transmission (40) and a drive axle differential (46) disposed in a unitary housing assembly (38), an oil-cooled prime mover or electric motor (14) for driving the transmission input shaft (42), an adapter assembly (24) for supporting the prime mover on the transaxle housing assembly, and a hydraulic system (172) providing pressurized oil flow for cooling and lubricating the electric motor and transaxle and for operating a clutch (84) and a brake (86) in the transmission to shift between the two-speed ratios of the transmission. The adapter assembly allows the prime mover to be supported in several positions on the transaxle housing. The brake is spring-applied and locks the transmission in its low-speed ratio should the hydraulic system fail. The hydraulic system pump is driven by an electric motor (212) independent of the prime mover and transaxle.

  7. Single transmission line data acquisition system

    DOE Patents [OSTI]

    Fasching, George E. (Morgantown, WV)

    1984-01-01

    A single transmission line interrogated multiple channel data acquisition system is provided in which a plurality of remote station/sensors monitor specific process variables and transmit measurement values over the single transmission line to a master station when addressed by the master station. Power for all remote stations (up to 980) is provided by driving the line with constant voltage supplied from the master station and automatically maintained independent of the number of remote stations directly connected to the line. The transmission line can be an RG-62 coaxial cable with lengths up to about 10,000 feet with branches up to 500 feet. The remote stations can be attached randomly along the line. The remote stations can be scanned at rates up to 980 channels/second.

  8. Downhole Data Transmission System

    DOE Patents [OSTI]

    Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT); Pixton, David (Lehi, UT); Dahlgren, Scott (Provo, UT); Fox, Joe (Spanish Fork, UT)

    2003-12-30

    A system for transmitting data through a string of downhole components. In one aspect, the system includes first and second magnetically conductive, electrically insulating elements at both ends of the component. Each element includes a first U-shaped trough with a bottom, first and second sides and an opening between the two sides. Electrically conducting coils are located in each trough. An electrical conductor connects the coils in each component. In operation, a varying current applied to a first coil in one component generates a varying magnetic field in the first magnetically conductive, electrically insulating element, which varying magnetic field is conducted to and thereby produces a varying magnetic field in the second magnetically conductive, electrically insulating element of a connected component, which magnetic field thereby generates a varying electrical current in the second coil in the connected component.

  9. Downhole Data Transmission System

    DOE Patents [OSTI]

    Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT); Pixton, David (Lehi, UT); Dahlgren, Scott (Provo, UT); Fox, Joe (Spanish Fork, UT)

    2004-04-06

    A system for transmitting data through a string of down-hole components. In accordance with one aspect, the system includes a plurality of downhole components, such as sections of pipe in a drill string. Each downhole component includes a pin end and a box end, with the pin end of one downhole component being adapted to be connected to the box end of another. Each pin end includes external threads and an internal pin face distal to the external threads. Each box end includes an internal shoulder face with internal threads distal to the internal shoulder face. The internal pin face and the internal shoulder face are aligned with and proximate each other when the pin end of the one component is threaded into a box end of the other component.

  10. SYSTEMS BIOLOGY Accurate information transmission

    E-Print Network [OSTI]

    Tsimring, Lev S.

    SYSTEMS BIOLOGY Accurate information transmission through dynamic biochemical signaling networks) and variability in cellular states (extrinsic noise) degrade information transmitted through signaling networks-induced information loss. In the extracellular signal­regulated kinase (ERK), calcium (Ca2+ ), and nuclear factor

  11. A Distributed System for Cooperative MIMO Transmissions

    E-Print Network [OSTI]

    Kalyanaraman, Shivkumar

    a distributed system for facilitating cooperative MIMO transmissions in networks without multiple antenna diversity can be leveraged at the network, link or physical layers to provide energy efficient transmissions for reliable low-power transmissions. The rest of this paper is organized as follows: the proposed system

  12. Transmission Services Commercial Systems Support and Development

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Call Agenda This customer conference call will provide updates concerning BPA Transmission Services' commercial systems support and development efforts. It will also provide...

  13. Linear relaxations for transmission system planning

    E-Print Network [OSTI]

    Taylor, Joshua A.

    We apply a linear relaxation procedure for polynomial optimization problems to transmission system planning. The approach recovers and improves upon existing linear models based on the DC approximation. We then consider ...

  14. Methods, apparatus, and systems for monitoring transmission systems

    DOE Patents [OSTI]

    Polk, Robert E. (Idaho Falls, ID) [Idaho Falls, ID; Svoboda, John M. (Idaho Falls, ID) [Idaho Falls, ID; West, Phillip B. (Idaho Falls, ID) [Idaho Falls, ID; Heath, Gail L. (Iona, ID) [Iona, ID; Scott, Clark L. (Idaho Falls, ID) [Idaho Falls, ID

    2010-08-31

    A sensing platform for monitoring a transmission system, and method therefor, may include a sensor that senses one or more conditions relating to a condition of the transmission system and/or the condition of an environment around the transmission system. A control system operatively associated with the sensor produces output data based on an output signal produced by the sensor. A transmitter operatively associated with the control system transmits the output data from the control system.

  15. TRANSMISSION SYSTEM ADEQUACY EVALUATION CONSIDERING WIND POWER

    E-Print Network [OSTI]

    Saskatchewan, University of

    TRANSMISSION SYSTEM ADEQUACY EVALUATION CONSIDERING WIND POWER Rajesh Karki Jaimin Patel Power to significantly increase renewable power penetration in electrical power systems. Wind power is the most important systems and large grid connected systems. Power generated by wind depends on the availability of the wind

  16. DOE Transmission System Integration Workshop

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i pStateDOE FederalTheofHeyeck, AEP, Sr. Vice President, Transmission and

  17. EA-1982: Parker-Davis Transmission System Routine Operation and...

    Energy Savers [EERE]

    Parker-Davis Transmission System Routine Operation and Maintenance Project and Proposed Integrated Vegetation Management Program EA-1982: Parker-Davis Transmission System Routine...

  18. Estimating the Actual Cost of Transmission System Congestion

    E-Print Network [OSTI]

    with electric transmission. One such component is transmission system conEstimating the Actual Cost of Transmission System Congestion Thomas J. Overbye Department of Electrical and Computer Engineering University of Illinois at Urbana-Champaign Urbana, IL 61801 USA overbye

  19. New York Independent System Operator, Smart Grid RFI: Addressing...

    Office of Environmental Management (EM)

    Independent System Operator, Smart Grid RFI: Addressing Policy and Logistical Challenges. New York Independent System Operator, Smart Grid RFI: Addressing Policy and Logistical...

  20. Steps to Establish a Real-Time Transmission Monitoring System...

    Energy Savers [EERE]

    Steps to Establish a Real-Time Transmission Monitoring System for Transmission Owners and Operators within the Eastern and Western Interconnections Steps to Establish a Real-Time...

  1. Investigation of Multi-Frequency Power Transmission and System 

    E-Print Network [OSTI]

    Barazarte Conte, Ronald

    2012-10-19

    This dissertation presents a new power system transmission concept based on frequency selectivity named Multi-Frequency Power System (MFPS). This system allows for selective power transmission among terminals in an interconnected system...

  2. Methods and systems for micro transmissions

    DOE Patents [OSTI]

    Stalford, Harold L

    2014-12-23

    Methods and systems for micro transmissions for a micro machine may comprise an input shaft assembly coupled to a micro actuator, an output shaft assembly coupled to a micro shaft, and one or more power conversion elements operable to convert a first type of movement from the micro actuator into a second, disparate type of movement for the micro shaft.

  3. Downhole transmission system comprising a coaxial capacitor

    DOE Patents [OSTI]

    Hall, David R. (Provo, UT); Pixton, David S. (Lehi, UT); Johnson, Monte L. (Orem, UT); Bartholomew, David B. (Springville, UT); Hall, Jr., H. Tracy (Provo, UT); Rawle, Michael (Springville, UT)

    2011-05-24

    A transmission system in a downhole component comprises a plurality of data transmission elements. A coaxial cable having an inner conductor and an outer conductor is disposed within a passage in the downhole component such that at least one capacitor is disposed in the passage and having a first terminal coupled to the inner conductor and a second terminal coupled to the outer conductor. Preferably the transmission element comprises an electrically conducting coil. Preferably, within the passage a connector is adapted to electrically connect the inner conductor of the coaxial cable and the lead wire. The coaxial capacitor may be disposed between and in electrically communication with the connector and the passage. In another embodiment a connector is adapted to electrical connect a first and a second portion of the inner conductor of the coaxial cable and a coaxial capacitor is in electrical communication with the connector and the passage.

  4. Control system and method for a power delivery system having a continuously variable ratio transmission

    DOE Patents [OSTI]

    Frank, Andrew A. (1034 Hillside Ave., Madison, WI 53705)

    1984-01-01

    A control system and method for a power delivery system, such as in an automotive vehicle, having an engine coupled to a continuously variable ratio transmission (CVT). Totally independent control of engine and transmission enable the engine to precisely follow a desired operating characteristic, such as the ideal operating line for minimum fuel consumption. CVT ratio is controlled as a function of commanded power or torque and measured load, while engine fuel requirements (e.g., throttle position) are strictly a function of measured engine speed. Fuel requirements are therefore precisely adjusted in accordance with the ideal characteristic for any load placed on the engine.

  5. Control system and method for a power delivery system having a continuously variable ratio transmission

    DOE Patents [OSTI]

    Frank, A.A.

    1984-07-10

    A control system and method for a power delivery system, such as in an automotive vehicle, having an engine coupled to a continuously variable ratio transmission (CVT). Totally independent control of engine and transmission enable the engine to precisely follow a desired operating characteristic, such as the ideal operating line for minimum fuel consumption. CVT ratio is controlled as a function of commanded power or torque and measured load, while engine fuel requirements (e.g., throttle position) are strictly a function of measured engine speed. Fuel requirements are therefore precisely adjusted in accordance with the ideal characteristic for any load placed on the engine. 4 figs.

  6. Hybrid powertrain system including smooth shifting automated transmission

    DOE Patents [OSTI]

    Beaty, Kevin D.; Nellums, Richard A.

    2006-10-24

    A powertrain system is provided that includes a prime mover and a change-gear transmission having an input, at least two gear ratios, and an output. The powertrain system also includes a power shunt configured to route power applied to the transmission by one of the input and the output to the other one of the input and the output. A transmission system and a method for facilitating shifting of a transmission system are also provided.

  7. Multi-transmission-line-beam interactive system

    E-Print Network [OSTI]

    Alexander Figotin; Guillermo Reyes

    2013-09-04

    We construct here a Lagrangian field formulation for a system consisting of an electron beam interacting with a slow-wave structure modeled by a possibly non-uniform multiple transmission line (MTL). In the case of a single line we recover the linear model of a traveling wave tube (TWT) due to J.R. Pierce. Since a properly chosen MTL can approximate a real waveguide structure with any desired accuracy, the proposed model can be used in particular for design optimization. Furthermore, the Lagrangian formulation provides for: (i) a clear identification of the mathematical source of amplification, (ii) exact expressions for the conserved energy and its flux distributions obtained from the Noether theorem. In the case of uniform MTLs we carry out an exhaustive analysis of eigenmodes and find sharp conditions on the parameters of the system to provide for amplifying regimes.

  8. Impact of Utility-Scale Distributed Wind on Transmission-Level System Operations

    SciTech Connect (OSTI)

    Brancucci Martinez-Anido, C.; Hodge, B. M.

    2014-09-01

    This report presents a new renewable integration study that aims to assess the potential for adding distributed wind to the current power system with minimal or no upgrades to the distribution or transmission electricity systems. It investigates the impacts of integrating large amounts of utility-scale distributed wind power on bulk system operations by performing a case study on the power system of the Independent System Operator-New England (ISO-NE).

  9. Midwest Independent Transmission System Operator Smart Grid Project | Open

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc Jump to: navigation,Mereg GmbH Jump to:EC-LEDSMidAmericanMidwest EnergyEnergy

  10. Midwest Independent Transmission System Operator | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource HistoryScenariosMarysvilleMicrogravity-Hybrid

  11. The Inherent Inefficiency of Simultaneously Feasible Financial Transmission Rights Auctions

    E-Print Network [OSTI]

    transmission right, electricity auction, simultaneous feasibility, transmission pricing. I. INTRODUCTION POINTThe Inherent Inefficiency of Simultaneously Feasible Financial Transmission Rights Auctions Shi as financial transmission rights (FTRs), resulting from centralized auctions conducted by Independent System

  12. Integrated System Transmission and Ancillary Services Rate Calculation

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Western Area Power Administration Basin Electric Power Cooperative Heartland Consumers Power District 1 Integrated System Transmission and Ancillary Services Rate Calculation...

  13. Integrated System Transmission and Ancillary Services Rate Calculation

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    System Transmission and Ancillary Services 2013 Rate True-up Calculation Western Area Power Administration Basin Electric Power Cooperative Heartland Consumers Power District 1...

  14. Hydrogen Delivery Technologies and Systems- Pipeline Transmission of Hydrogen

    Broader source: Energy.gov [DOE]

    Hydrogen Delivery Technologies and Systems - Pipeline Transmission of Hydrogen. Design and operations standards and materials for hydrogen and natural gas pipelines.

  15. Enhanced Geothermal Systems (EGS) with CO2 as Heat Transmission...

    Open Energy Info (EERE)

    Enhanced Geothermal Systems (EGS) with CO2 as Heat Transmission Fluid Geothermal Lab Call Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Enhanced...

  16. Radio frequency communication system utilizing radiating transmission lines

    DOE Patents [OSTI]

    Struven, Warren C. (San Carlos, CA)

    1984-01-01

    A radio communication system for use in tunnels, mines, buildings or other shielded locations in which a pair of radiating transmission lines (30), (31) extend through such location in spaced coextensive relation to each other. Each transmission line (30), (31) has at least one unidirectional amplifier (32), (33) interposed therein with the sense of the unidirectional amplifier (32) of one transmission line (30) being opposite to the sense of the unidirectional amplifier (33) of the other transmission line (31). Each of the amplifiers (32), (33) has a gain which is less than the coupling loss between the transmission lines (30), (31). Two or more mobile transceivers (35) in the location served by the system are coupled to the transmission lines (30), (31) by electromagnetic wave propagation in space in order to communicate directly with each other at a given radio frequency within the frequency range of the system.

  17. EIS-0285: Transmission System Vegetation Management Program

    Broader source: Energy.gov [DOE]

    Bonneville Power Administration (Bonneville) is responsible for maintaining a network of 24,000 kilometers (km) or 15,000 miles (mi.) of electric transmission lines and 350 substations. This...

  18. SPECTRALLY EFFICIENT MULTICARRIER SYSTEMS FOR FIBER-OPTIC TRANSMISSION

    E-Print Network [OSTI]

    Zhang, Yuanyuan

    2012-05-31

    The purpose of this research is to provide a comprehensive study of spectrally efficient multicarrier systems for fiber-optic transmission. Multicarrier optical systems partition a high-data rate digital signal in a wavelength channel into multiple...

  19. An Application-Independent System for Visualizing User Operation History

    E-Print Network [OSTI]

    Igarashi, Takeo

    An Application-Independent System for Visualizing User Operation History Toshio Nakamura Department conventional interactive systems provide the user operation history only as a list of text commands. The text have been proposed. For example, the Chimera system [17] visualizes an operation history as a sequence

  20. AC transmission system planning choosing lines from a discrete set

    E-Print Network [OSTI]

    Gilbertson, Eric W.

    2013-04-24

    Transmission system planning (TSP) is a difficult nonlinear optimization problem involving non-convex quadratic terms, as well as discrete variables. We extend prior results for linear relaxations, drawing on a preliminary ...

  1. ///COUNTER : an artistic system for the transmission of cultural energy

    E-Print Network [OSTI]

    Vincent de Paul, Jegan Joyston

    2009-01-01

    My thesis introduces ///COUNTER as an artistic system for the transmission of cultural energy. The underlying concepts of ///COUNTER are derived directly from my work on energy access as developed through the eWheel and ...

  2. Transmission Services Commercial Systems Support and Development

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With U.S.WeekProducts > Products Daily NoticeTransmissionCommercial

  3. Transmission Completion Time Minimization in an Energy Harvesting System

    E-Print Network [OSTI]

    Ulukus, Sennur

    nature. The nodes may harvest energy through solar cells, vibration absorption devices, water millsTransmission Completion Time Minimization in an Energy Harvesting System Jing Yang Sennur Ulukus-user energy harvesting wireless communication system. In this system, both the data packets and the harvested

  4. The Inherent Inefficiency of Simultaneously Feasible Financial Transmission Rights Auctions

    E-Print Network [OSTI]

    such convergence. Index Terms-- financial transmission right, electricity auction, simultaneous feasibilityThe Inherent Inefficiency of Simultaneously Feasible Financial Transmission Rights Auctions Shi as financial transmission rights (FTRs), resulting from centralized auctions conducted by Independent System

  5. Single transmission line interrogated multiple channel data acquisition system

    DOE Patents [OSTI]

    Fasching, George E. (Morgantown, WV); Keech, Jr., Thomas W. (Morgantown, WV)

    1980-01-01

    A single transmission line interrogated multiple channel data acquisition system is provided in which a plurality of remote station/sensor circuits each monitors a specific process variable and each transmits measurement values over a single transmission line to a master interrogating station when addressed by said master interrogating station. Typically, as many as 330 remote stations may be parallel connected to the transmission line which may exceed 7,000 feet. The interrogation rate is typically 330 stations/second. The master interrogating station samples each station according to a shared, charging transmit-receive cycle. All remote station address signals, all data signals from the remote stations/sensors and all power for all of the remote station/sensors are transmitted via a single continuous terminated coaxial cable. A means is provided for periodically and remotely calibrating all remote sensors for zero and span. A provision is available to remotely disconnect any selected sensor station from the main transmission line.

  6. System restoration of a transmission network

    SciTech Connect (OSTI)

    Ebert, A.; Eppel, M.; Genthe, S.; Schwarzjirg, H.; Stark, J.; Werner, W. [Bayernwerke AG, Karlsfeld (Germany); [Siemens AG, Wien (Austria)

    1995-12-31

    In a large SCADA/EMS-System an Expertsystem for Fault Diagnosis and for System Restoration is integrated. The System Restoration covered by the Expertsystem gives assistance to the operator in any kind of blackout by presenting restoration plans. In case any number of busbars is outaged the system automatically determines the affected network areas and thereby the magnitude of the whole blackout. The restoration of the network is done in phases depending on the kind of blackout and is based on a global utility-strategy-plan. Within this scheme the detailed restoration plan is determined dynamically based on the actual situation and some predefinitions such as load priorities and power plants to be reenergized with priority. The described system covers all cases of blackouts by evaluating a plan based on the individual case. The Expertsystem is a hybrid system using an optimal power flow, too, and is fully integrated in the SCADA/EMS system. The plans of each phase are presented via the common MMI to the operator and supervised due to execution. The system distinguishes between operator wanted deviations and unwanted deviations during execution. Thus the operator at any time can continue as he likes.

  7. Transmission

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-Inspired SolarAbout / Transforming Y-12 Transforming Y-12ComplexTransmission

  8. Transmission Pricing of Distributed Multilateral Energy Transactions to Ensure System Security and Guide Economic Dispatch

    E-Print Network [OSTI]

    Ilic, Marija; Hsieh, Eric; Remanan, Prasad

    2004-06-16

    Transmission Pricing of Distributed Multilateral Energy Transactions to Ensure System Security and Guide Economic Dispatch...

  9. Data Transmission System For A Downhole Component

    DOE Patents [OSTI]

    Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT); Pixton, David (Lehi, UT); Dahlgren, Scott (Provo, UT); Sneddon, Cameron (Provo, UT); Fox, Joe (Spanish Fork, UT); Briscoe, Michael (Lehi, UT)

    2005-01-18

    The invention is a system for transmitting data through a string of downhole components. In accordance with one aspect of the invention, the system includes a plurality of downhole components, such as sections of pipe in a drill string. Each component has a first and second end, with a first communication element located at the first end and a second communication element located at the second end. Each communication element includes a first contact and a second contact. The system also includes a coaxial cable running between the first and second communication elements, the coaxial cable having a conductive tube and a conductive core within it. The system also includes a first and second connector for connecting the first and second communication elements respectively to the coaxial cable. Each connector includes a conductive sleeve, lying concentrically within the conductive tube, which fits around and makes electrical contact with the conductive core. The conductive sleeve is electrically isolated from the conductive tube. The conductive sleeve of the first connector is in electrical contact with the first contact of the first communication element, the conductive sleeve of the second connector is in electrical contact with the first contact of the second communication element, and the conductive tube is in electrical contact with both the second contact of the first communication element and the second contact of the second communication element.

  10. Transmission Completion Time Minimization in an Energy Harvesting System

    E-Print Network [OSTI]

    Ulukus, Sennur

    arrivals. I. INTRODUCTION In this work, we consider networks where nodes are able to harvest energy from nature. The nodes may harvest energy through solar cells, vibration absorption devices, water millsTransmission Completion Time Minimization in an Energy Harvesting System Jing Yang Sennur Ulukus

  11. Energy Efficient Relaying Games in Cooperative Wireless Transmission Systems

    E-Print Network [OSTI]

    Brown III, Donald R.

    Energy Efficient Relaying Games in Cooperative Wireless Transmission Systems Jie Yang and D information for others. This paper considers the effect of selfishness on energy efficiency using a non efficiency close to that of centrally optimized energy allocation in many cases. I. Introduction In energy

  12. Today's electrical transmission system delivers high levels of

    E-Print Network [OSTI]

    Post, Wilfred M.

    #12;Today's electrical transmission system delivers high levels of reliability, and society's needs for electricity demand that reliability be maintained as we transition to clean electricity generation of conventional and superconducting conductors. The power grid is a complex machine in which electricity is gener

  13. EIS-0114: Fall River/Lower Valley Transmission System Reinforcement

    Broader source: Energy.gov [DOE]

    The Bonneville Power Administration developed this EIS to explore reinforcing the electrical transmission system in southeastern Idaho by adding a 161-kilovolt partly single- and double-circuit line from the Goshen to Drummond Substations in order to maintain reliable electric service in the area.

  14. Modeling Interregional Transmission Congestion in the National Energy Modeling System

    E-Print Network [OSTI]

    Gumerman, Etan; Chan, Peter; Lesieutre, Bernard; Marnay, Chris; Wang, Juan

    2006-01-01

    NEMS does not track electricity transmission within regions,international electricity transmission with Canada andwhen solving for electricity transmission, the coal plants

  15. Modeling Interregional Transmission Congestion in the National Energy Modeling System

    E-Print Network [OSTI]

    Gumerman, Etan; Chan, Peter; Lesieutre, Bernard; Marnay, Chris; Wang, Juan

    2006-01-01

    to a load center via a DC transmission line such that flowsD.C. 127 pages. Modeling Interregional Transmission

  16. Abstract --Under a context of transmission open access, a methodology to define a common transmission trunk system

    E-Print Network [OSTI]

    Catholic University of Chile (Universidad Católica de Chile)

    is defined as a unique and common system constituted by electrical lines and substations access. I INTRODUCTION Transmission is the activity dedicated to transport power from differentAbstract -- Under a context of transmission open access, a methodology to define a common

  17. Princeton Power Systems (TRL 5 6 Component)- Marine High-Voltage Power Conditioning and Transmission System with Integrated Energy Storage

    Broader source: Energy.gov [DOE]

    Princeton Power Systems (TRL 5 6 Component) - Marine High-Voltage Power Conditioning and Transmission System with Integrated Energy Storage

  18. Energy-Efficient Transmission Schemes in Cooperative Cellular Systems

    E-Print Network [OSTI]

    Yang, Wei; Wang, Ying; Sun, Wanlu

    2010-01-01

    Energy-efficient communication is an important requirement for mobile devices, as the battery technology has not kept up with the growing requirements stemming from ubiquitous multimedia applications. This paper considers energy-efficient transmission schemes in cooperative cellular systems with unbalanced traffic between uplink and downlink. Theoretically, we derive the optimal transmission data rate, which minimizes the total energy consumption of battery-powered terminals per information bit. The energy-efficient cooperation regions are then investigated to illustrate the effects of relay locations on the energy-efficiency of the systems, and the optimal relay location is found for maximum energy-efficiency. Finally, numerical results are provided to demonstrate the tradeoff between energy-efficiency and spectral efficiency.

  19. Fiber optically isolated and remotely stabilized data transmission system

    DOE Patents [OSTI]

    Nelson, Melvin A. (Santa Barbara, CA)

    1992-01-01

    A fiber optically isolated and remotely stabilized data transmission system s described wherein optical data may be transmitted over an optical data fiber from a remote source which includes a data transmitter and a power supply at the remote source. The transmitter may be remotely calibrated and stabilized via an optical control fiber, and the power source may be remotely cycled between duty and standby modes via an optical control fiber.

  20. Fiber optically isolated and remotely stabilized data transmission system

    DOE Patents [OSTI]

    Nelson, M.A.

    1992-11-10

    A fiber optically isolated and remotely stabilized data transmission systems described wherein optical data may be transmitted over an optical data fiber from a remote source which includes a data transmitter and a power supply at the remote source. The transmitter may be remotely calibrated and stabilized via an optical control fiber, and the power source may be remotely cycled between duty and standby modes via an optical control fiber. 3 figs.

  1. California Energy Commission Public Interest EnergyResearch/Energy System Integration -- Transmission-Planning Research&Development Scoping Project

    SciTech Connect (OSTI)

    Eto, Joseph H.; Lesieutre, Bernard; Widergren, Steven

    2004-07-01

    The objective of this Public Interest Energy Research (PIER)scoping project is to identify options for public-interest research and development (R&D) to improve transmission-planning tools, techniques, and methods. The information presented was gathered through a review of current California utility, California Independent System Operator (ISO), and related western states electricity transmission-planning activities and emerging needs. This report presents the project teams findings organized under six topic areas and identifies 17 distinct R&D activities to improve transmission-planning in California and the West. The findings in this report are intended for use, along with other materials, by PIER staff, to facilitate discussions with stakeholders that will ultimately lead to development of a portfolio of transmission-planning R&D activities for the PIER program.

  2. Natural gas transmission and distribution model of the National Energy Modeling System

    SciTech Connect (OSTI)

    1997-02-01

    The Natural Gas Transmission and Distribution Model (NGTDM) is the component of the National Energy Modeling System (NEMS) that is used to represent the domestic natural gas transmission and distribution system. NEMS was developed in the Office of Integrated Analysis and Forecasting of the Energy Information Administration (EIA). NEMS is the third in a series of computer-based, midterm energy modeling systems used since 1974 by the EIA and its predecessor, the Federal Energy Administration, to analyze domestic energy-economy markets and develop projections. From 1982 through 1993, the Intermediate Future Forecasting System (IFFS) was used by the EIA for its analyses, and the Gas Analysis Modeling System (GAMS) was used within IFFS to represent natural gas markets. Prior to 1982, the Midterm Energy Forecasting System (MEFS), also referred to as the Project Independence Evaluation System (PIES), was employed. NEMS was developed to enhance and update EIA`s modeling capability by internally incorporating models of energy markets that had previously been analyzed off-line. In addition, greater structural detail in NEMS permits the analysis of a broader range of energy issues. The time horizon of NEMS is the midterm period (i.e., through 2015). In order to represent the regional differences in energy markets, the component models of NEMS function at regional levels appropriate for the markets represented, with subsequent aggregation/disaggregation to the Census Division level for reporting purposes.

  3. Number and propagation of line outages in cascading events in electric power transmission systems

    E-Print Network [OSTI]

    Dobson, Ian

    Number and propagation of line outages in cascading events in electric power transmission systems that progressively weakens the system. Large electric power transmission systems occasionally have cascading failures of transmission lines. The multiple mechanisms involved these cascading outages are many and varied, and the power

  4. Independent engineering review of the Hanford Waste Vitrification System

    SciTech Connect (OSTI)

    Not Available

    1991-10-01

    The Hanford Waste Vitrification Plant (HWVP) was initiated in June 1987. The HWVP is an essential element of the plan to end present interim storage practices for defense wastes and to provide for permanent disposal. The project start was justified, in part, on efficient technology and design information transfer from the prototype Defense Waste Processing Facility (DWPF). Development of other serial Hanford Waste Vitrification System (HWVS) elements, such as the waste retrieval system for the double-shell tanks (DSTs), and the pretreatment system to reduce the waste volume converted into glass, also was required to accomplish permanent waste disposal. In July 1991, at the time of this review, the HWVP was in the Title 2 design phase. The objective of this technical assessment is to determine whether the status of the technology development and engineering practice is sufficient to provide reasonable assurance that the HWVP and the balance of the HWVS system will operate in an efficient and cost-effective manner. The criteria used to facilitate a judgment of potential successful operation are: vitrification of high-level radioactive waste from specified DSTs on a reasonably continuous basis; and glass produced with physical and chemical properties formally acknowledge as being acceptable for disposal in a repository for high-level radioactive waste. The criteria were proposed specifically for the Independent Engineering Review to focus that assessment effort. They are not represented as the criteria by which the Department will judge the prudence of the Project. 78 refs., 10 figs., 12 tabs.

  5. Cost-Effectivenessof PhotovoltaicGenerationIn A Transmission-Constrained Load Area of An InterconnectedSystem

    E-Print Network [OSTI]

    Gross, George

    Abstract: Electric power systems of today are experiencing a difficulty of constrained transmission lines, present electric system networks are experiencing the difficulty of constrained transmission lines: Photovoltaic Generation, Power System Economics, Dispersed Generation, Transmission-Constrained Interconnected

  6. Hawaii International Conference on System Science, January 2003, Hawaii, 2003 IEEE Blackout Mitigation Assessment in Power Transmission Systems

    E-Print Network [OSTI]

    Newman, David

    @engr.wisc.edu Abstract Electric power transmission systems are a key infrastructure and blackouts of these systems have by the dynamics. 1. Introduction Electric power transmission systems are an important element of the national Mitigation Assessment in Power Transmission Systems B. A. Carreras Oak Ridge National Laboratory, Oak Ridge

  7. Risk-based Maintenance Allocation and Scheduling for Bulk Electric Power Transmission System Equipment

    E-Print Network [OSTI]

    risk of wide-area bulk transmission system failures. The work makes use of two previously developed1 Risk-based Maintenance Allocation and Scheduling for Bulk Electric Power Transmission System for bulk transmission equipment that is based on the cumulative long-term risk caused by each piece

  8. AN INFINITE DIMENSIONAL DESCRIPTOR SYSTEM MODEL FOR ELECTRICAL CIRCUITS WITH TRANSMISSION LINES

    E-Print Network [OSTI]

    Reis, Timo

    AN INFINITE DIMENSIONAL DESCRIPTOR SYSTEM MODEL FOR ELECTRICAL CIRCUITS WITH TRANSMISSION LINES TIMO REIS Abstract. In this paper a model of linear electrical circuits with transmission lines is de-coupled with the telegraph equations who describe the behavior of the transmission lines. The resulting system of equations

  9. Control of MTDC Transmission Systems under Local Information

    E-Print Network [OSTI]

    Dimarogonas, Dimos

    long- distance power transmission. One such example are large- scale off-shore wind farms, which often

  10. A stochastic framework for uncertainty analysis in electric power transmission systems with wind generation

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    of generating units, the transfer of electric power over networks of transmission lines and, finally1 A stochastic framework for uncertainty analysis in electric power transmission systems with wind an electric transmission network with wind power generation and their impact on its reliability. A stochastic

  11. 1346 IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 23, NO. 3, AUGUST 2008 Optimal Transmission Switching

    E-Print Network [OSTI]

    Ferris, Michael C.

    switching in which upper limit on open lines is . I. INTRODUCTION I N large electric networks, transmission1346 IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 23, NO. 3, AUGUST 2008 Optimal Transmission Switching, we formulate the problem of finding an optimal generation dispatch and transmission topology to meet

  12. Packet Transmission Policies for Battery Operated Communication Systems Ye Li & Chaitali Chakrabarti

    E-Print Network [OSTI]

    Kambhampati, Subbarao

    Packet Transmission Policies for Battery Operated Communication Systems Ye Li & Chaitali In this paper, we address the problem of designing battery- friendly packet transmission policies for wireless data transmission. Our objective is to maximize the lifetime of battery for wireless devices subject

  13. ECEN 720 High-Speed Links: Circuits and Systems Lab1 -Transmission Lines

    E-Print Network [OSTI]

    Palermo, Sam

    transmission line terminations are required to eliminate any reflections. In this lab, the characteristics and usage of basic transmission line model and its termination will be practiced. A time System using Partial Differential Equation The transmission line can be described as series resistance

  14. Sensor, method and system of monitoring transmission lines

    DOE Patents [OSTI]

    Syracuse, Steven J.; Clark, Roy; Halverson, Peter G.; Tesche, Frederick M.; Barlow, Charles V.

    2012-10-02

    An apparatus, method, and system for measuring the magnetic field produced by phase conductors in multi-phase power lines. The magnetic field measurements are used to determine the current load on the conductors. The magnetic fields are sensed by coils placed sufficiently proximate the lines to measure the voltage induced in the coils by the field without touching the lines. The x and y components of the magnetic fields are used to calculate the conductor sag, and then the sag data, along with the field strength data, can be used to calculate the current load on the line and the phase of the current. The sag calculations of this invention are independent of line voltage and line current measurements. The system applies a computerized fitter routine to measured and sampled voltages on the coils to accurately determine the values of parameters associated with the overhead phase conductors.

  15. Integrated System Transmission and Ancillary Services Rate Calculation

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Gross receipts taxes are not included in transmission revenue requirement in the Rate Formula Template, since they are recovered elsewhere. I Western is not subject to Federal or...

  16. Extending quantum control of time-independent systems to time-dependent systems

    E-Print Network [OSTI]

    Zhen-Yu Wang; Ren-Bao Liu

    2011-01-27

    We establish that if a scheme can control a time-independent system arbitrarily coupled to a generic finite bath over a short period of time $T$ with control precision $O(T^{N+1})$, it can also realize the control with the same order of precision on smoothly time-dependent systems. This result extends the validity of various universal dynamical control schemes to arbitrary analytically time-dependent systems.

  17. Transmission and Grid Integration: Electricity, Resources, & Building Systems Integration (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2009-09-01

    Factsheet developed to describe the activites of the Transmission and Grid Integration Group within NREL's Electricity, Resources, and Buildings Systems Integration center.

  18. Transmission and Grid Integration: Electricity, Resources, & Building Systems Integration (Fact Sheet)

    SciTech Connect (OSTI)

    2009-09-01

    Factsheet developed to describe the activities of the Transmission and Grid Integration Group within NREL's Electricity, Resources, and Buildings Systems Integration center.

  19. Enhanced Geothermal Systems (EGS) with CO2as Heat Transmission Fluid

    Broader source: Energy.gov [DOE]

    The overall objective of the research is to explore the feasibility of operating enhanced geothermal systems (EGS) with CO2as heat transmission fluid.

  20. Transmission System Expansion Plans in View Point of Deterministic, Probabilistic and Security Reliability Criteria

    E-Print Network [OSTI]

    Transmission System Expansion Plans in View Point of Deterministic, Probabilistic and Security reliability criterion, probabilistic reliability criterion and security criterion based on N- contingency control system as well as reasonable strength of grid originally. Because investment for power system

  1. Oahu Wind Integration and Transmission Study (OWITS): Hawaiian Islands Transmission Interconnection Project

    SciTech Connect (OSTI)

    Woodford, D.

    2011-02-01

    This report provides an independent review included an initial evaluation of the technical configuration and capital costs of establishing an undersea cable system and examining impacts to the existing electric transmission systems as a result of interconnecting the islands.

  2. Phase 2 Report: Oahu Wind Integration and Transmission Study (OWITS); Hawaiian Islands Transmission Interconnection Project

    SciTech Connect (OSTI)

    Woodford, D.

    2011-02-01

    This report provides an independent review including an initial evaluation of the technical configuration and capital costs of establishing an undersea cable system and examining impacts to the existing electric transmission systems as a result of interconnecting the islands

  3. Polar On-Line Acquisition Relay and Transmission System (POLARATS)

    SciTech Connect (OSTI)

    Yuracko, K.

    2004-07-15

    POLARATS (Polar On-Line Acquisition Relay And Transmission System) is being developed by YAHSGS LLC (YAHSGS) and Oak Ridge National Laboratory (ORNL) to provide remote, unattended monitoring of environmental parameters under harsh environmental conditions. In particular, instrumental design and engineering is oriented towards protection of human health in the Arctic, and with the additional goal of advancing Arctic education and research. POLARATS will obtain and transmit environmental data from hardened monitoring devices deployed in locations important to understanding atmospheric and aquatic pollutant migration as it is biomagnified in Arctic food chains. An Internet- and personal computer (PC)-based educational module will provide real time sensor data, on-line educational content, and will be integrated with workbooks and textbooks for use in middle and high school science programs. The educational elements of POLARATS include an Internet-based educational module that will instruct students in the use of the data and how those data fit into changing Arctic environments and food chains. POLARATS will: (1) Enable students, members of the community, and scientific researchers to monitor local environmental conditions in real time over the Internet; and (2) Provide additional educational benefits through integration with middle- and high-school science curricula. Information will be relayed from POLARATS devices to classrooms and libraries along with custom-designed POLARATS teaching materials that will be integrated into existing curricula to enhance the educational benefits realized from the information obtained.

  4. A Service-Oriented Architecture for Electric Power Transmission System Asset Management

    E-Print Network [OSTI]

    Honavar, Vasant

    A Service-Oriented Architecture for Electric Power Transmission System Asset Management Jyotishman,tua,honavar,jdm}@iastate.edu Abstract. In electric power transmission systems, the assets include transmis- sion lines, transformers number of distributed, autonomously managed, capital-intensive as- sets. Such assets include power plants

  5. A systems engineering approach to the analysis of Wireless Power Transmission Systems 

    E-Print Network [OSTI]

    Brown, Alan Madden

    1993-01-01

    "Wireless Power Transmission: The Commercial Potential" ) was structured to provide a forum for participants to present and discuss applications and markets for wireless power technology, relevant societal and business considerations, and environmental... of the entire list of hypothencal systems. The deductions relate to system performance, cost, time, reliability, flexibility, market, etc involves evaluating the analyses and comparing these evaluations with the oblectives, criteria, and constraints...

  6. Virtual Pipeline System Testbed to Optimize the U.S. Natural Gas Transmission Pipeline System

    SciTech Connect (OSTI)

    Kirby S. Chapman; Prakash Krishniswami; Virg Wallentine; Mohammed Abbaspour; Revathi Ranganathan; Ravi Addanki; Jeet Sengupta; Liubo Chen

    2005-06-01

    The goal of this project is to develop a Virtual Pipeline System Testbed (VPST) for natural gas transmission. This study uses a fully implicit finite difference method to analyze transient, nonisothermal compressible gas flow through a gas pipeline system. The inertia term of the momentum equation is included in the analysis. The testbed simulate compressor stations, the pipe that connects these compressor stations, the supply sources, and the end-user demand markets. The compressor station is described by identifying the make, model, and number of engines, gas turbines, and compressors. System operators and engineers can analyze the impact of system changes on the dynamic deliverability of gas and on the environment.

  7. Application of the Global Positioning System to the Measurement of Overhead Power Transmission Conductor Sag

    E-Print Network [OSTI]

    operating regime [1-5]. In a deregulated electric utility environment, transmission circuit ratings assumeApplication of the Global Positioning System to the Measurement of Overhead Power Transmission Abstract This paper describes a method to directly meas- ure the physical sag of overhead electric power

  8. Z .Decision Support Systems 24 1999 297310 A transmission-constrained unit commitment method in power

    E-Print Network [OSTI]

    Oren, Shmuel S.

    Z .Decision Support Systems 24 1999 297­310 A transmission-constrained unit commitment method This paper presents a transmission-constrained unit commitment method using a Lagrangian relaxation approach, a feasibility phase and unit decommitment. A large-scale test problem with more than 2200 buses and 2500

  9. The integration of renewable energy sources into electric power transmission systems

    SciTech Connect (OSTI)

    Barnes, P.R.; Dykas, W.P.; Kirby, B.J.; Purucker, S.L. [Oak Ridge National Lab., TN (United States); Lawler, J.S. [Univ. of Tennessee, Knoxville, TN (United States)

    1995-07-01

    Renewable energy technologies such as photovoltaics, solar thermal power plants, and wind turbines are nonconventional, environmentally attractive sources of energy that can be considered for electric power generation. Many of the areas with abundant renewable energy resources (very sunny or windy areas) are far removed from major load centers. Although electrical power can be transmitted over long distances of many hundreds of miles through high-voltage transmission lines, power transmission systems often operate near their limits with little excess capacity for new generation sources. This study assesses the available capacity of transmission systems in designated abundant renewable energy resource regions and identifies the requirements for high-capacity plant integration in selected cases. In general, about 50 MW of power from renewable sources can be integrated into existing transmission systems to supply local loads without transmission upgrades beyond the construction of a substation to connect to the grid. Except in the Southwest, significant investment to strengthen transmission systems will be required to support the development of high-capacity renewable sources of 1000 MW or greater in areas remote from major load centers. Cost estimates for new transmission facilities to integrate and dispatch some of these high-capacity renewable sources ranged from several million dollars to approximately one billion dollars, with the latter figure an increase in total investment of 35%, assuming that the renewable source is the only user of the transmission facility.

  10. Aalborg Universitet EHV/HV Underground Cable Systems for Power Transmission

    E-Print Network [OSTI]

    Bak, Claus Leth

    Cable Systems for Power Transmission. Department of Energy Technology, Aalborg University. General of underground transmission cable research for Energinet.dk and Department of Energy Technology Research results and good colleagues at Energinet.dk · My colleagues at the Department of Energy Technology at Aalborg

  11. New York Independent System Operator, Smart Grid RFI: Addressing...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Response of New York State Smart Grid Addressing Policy and Logistical Challenges SmartGrid Consortium: Smart Grid Roadmap for the State of New York 2009 Smart Grid System...

  12. Unaligned Binary Codes for Index Compression in Schema-Independent Text Retrieval Systems

    E-Print Network [OSTI]

    Waterloo, University of

    during index construction. Schema- independent indices have different characteristics than document unaligned codes. Thus, their more compact index represen- tation does not carry the cost of a substantiallyUnaligned Binary Codes for Index Compression in Schema-Independent Text Retrieval Systems Stefan B

  13. System for computer controlled shifting of an automatic transmission

    DOE Patents [OSTI]

    Patil, Prabhakar B. (Detroit, MI)

    1989-01-01

    In an automotive vehicle having an automatic transmission that driveably connects a power source to the driving wheels, a method to control the application of hydraulic pressure to a clutch, whose engagement produces an upshift and whose disengagement produces a downshift, the speed of the power source, and the output torque of the transmission. The transmission output shaft torque and the power source speed are the controlled variables. The commanded power source torque and commanded hydraulic pressure supplied to the clutch are the control variables. A mathematical model is formulated that describes the kinematics and dynamics of the powertrain before, during and after a gear shift. The model represents the operating characteristics of each component and the structural arrangement of the components within the transmission being controlled. Next, a close loop feedback control is developed to determine the proper control law or compensation strategy to achieve an acceptably smooth gear ratio change, one in which the output torque disturbance is kept to a minimum and the duration of the shift is minimized. Then a computer algorithm simulating the shift dynamics employing the mathematical model is used to study the effects of changes in the values of the parameters established from a closed loop control of the clutch hydraulic and the power source torque on the shift quality. This computer simulation is used also to establish possible shift control strategies. The shift strategies determine from the prior step are reduced to an algorithm executed by a computer to control the operation of the power source and the transmission.

  14. Abstract--The transmission system plays an essential role in the new deregulated scenario. Aspects such as planning are

    E-Print Network [OSTI]

    Catholic University of Chile (Universidad Católica de Chile)

    . · Energy prices determined by the congestion of the transmission system's lines are impacted. II1 Abstract-- The transmission system plays an essential role in the new deregulated scenario this methodology are the expanded transmission system and the agents involved in the expansion, together

  15. Transmission needs across a fully renewable European power system

    E-Print Network [OSTI]

    Rodriguez, Rolando A; Andresen, Gorm B; Heide, Dominik; Greiner, Martin

    2013-01-01

    The residual load and excess power generation of 27 European countries with a 100% penetration of variable renewable energy sources are explored in order to quantify the benefit of power transmission between countries. Estimates are based on extensive weather data, which allows for modelling of hourly mismatches between the demand and renewable generation from wind and solar photovoltaics. For separated countries, balancing is required to cover around 24% of the total annual energy consumption. This number can be reduced down to 15% once all countries are networked together with uncon- strained interconnectors. The reduction represents the maximum possible benefit of transmission for the countries. The total Net Transfer Capacity of the unconstrained interconnectors is roughly twelve times larger than current values. However, constrained interconnector capacities six times larger than the current values are found to provide 97% of the maximum possible benefit of cooperation. This motivates a detailed investig...

  16. A system for optimizing interior daylight distribution using reflective Venetian blinds with independent blind angle control

    E-Print Network [OSTI]

    McGuire, Molly E

    2005-01-01

    An operational algorithm for blind angle control is developed to optimize the daylighting performance of a system of reflective Venetian blinds. Numerical modeling and experiment confirm that independent control of alternating ...

  17. On the Efficiency of the New York Independent System Operator Market for Transmission

    E-Print Network [OSTI]

    947208061, USA.; Emily S. Bartholomew, Senior Research Associate, Electricity Market Studies, Environmental-8061, USA, Chris Marnay, Staff Scientist, Electricity Market Studies, Environmental Energy Technologies of California, Berkeley, CA 94720, USA. Abstract The physical nature of electricity generation and delivery

  18. Enhanced Geothermal Systems (EGS) comparing water with CO2 as heat transmission fluids

    E-Print Network [OSTI]

    Pruess, Karsten

    2007-01-01

    Transmission Fluid in the EGS Integrating the Carbon StorageK. Enhanced Geothermal Systems (EGS) Using CO2 as WorkingNHANCED G EOTHERMAL S YSTEMS (EGS): C OMPARING W ATER AND CO

  19. Security analysis of the interaction between the UK gas and electricity transmission systems 

    E-Print Network [OSTI]

    Whiteford, James Raymond George

    2012-06-25

    Natural gas has become the UK’s foremost primary energy source, providing some 39% of our energy needs. The National Transmission System (NTS) has developed from its humble beginnings when natural gas was first discovered ...

  20. Mass independent kinetic energy reducing inlet system for vacuum environment

    DOE Patents [OSTI]

    Reilly, Peter T.A.

    2013-12-03

    A particle inlet system comprises a first chamber having a limiting orifice for an incoming gas stream and a micrometer controlled expansion slit. Lateral components of the momentum of the particles are substantially cancelled due to symmetry of the configuration once the laminar flow converges at the expansion slit. The particles and flow into a second chamber, which is maintained at a lower pressure than the first chamber, and then moves into a third chamber including multipole guides for electromagnetically confining the particle. The vertical momentum of the particles descending through the center of the third chamber is minimized as an upward stream of gases reduces the downward momentum of the particles. The translational kinetic energy of the particles is near-zero irrespective of the mass of the particles at an exit opening of the third chamber, which may be advantageously employed to provide enhanced mass resolution in mass spectrometry.

  1. Mass independent kinetic energy reducing inlet system for vacuum environment

    DOE Patents [OSTI]

    Reilly, Peter T. A. [Knoxville, TN

    2010-12-14

    A particle inlet system comprises a first chamber having a limiting orifice for an incoming gas stream and a micrometer controlled expansion slit. Lateral components of the momentum of the particles are substantially cancelled due to symmetry of the configuration once the laminar flow converges at the expansion slit. The particles and flow into a second chamber, which is maintained at a lower pressure than the first chamber, and then moves into a third chamber including multipole guides for electromagnetically confining the particle. The vertical momentum of the particles descending through the center of the third chamber is minimized as an upward stream of gases reduces the downward momentum of the particles. The translational kinetic energy of the particles is near-zero irrespective of the mass of the particles at an exit opening of the third chamber, which may be advantageously employed to provide enhanced mass resolution in mass spectrometry.

  2. Mass independent kinetic energy reducing inlet system for vacuum environment

    DOE Patents [OSTI]

    Reilly, Peter T.A.

    2014-05-13

    A particle inlet system comprises a first chamber having a limiting orifice for an incoming gas stream and a micrometer controlled expansion slit. Lateral components of the momentum of the particles are substantially cancelled due to symmetry of the configuration once the laminar flow converges at the expansion slit. The particles and flow into a second chamber, which is maintained at a lower pressure than the first chamber, and then moves into a third chamber including multipole guides for electromagnetically confining the particle. The vertical momentum of the particles descending through the center of the third chamber is minimized as an upward stream of gases reduces the downward momentum of the particles. The translational kinetic energy of the particles is near-zero irrespective of the mass of the particles at an exit opening of the third chamber, which may be advantageously employed to provide enhanced mass resolution in mass spectrometry.

  3. Low pressure electrospray ionization system and process for effective transmission of ions

    DOE Patents [OSTI]

    Tang, Keqi (Richland, WA); Page, Jason S. (Kennewick, WA); Kelly, Ryan T. (Wet Richland, WA); Smith, Richard D. (Richland, WA)

    2010-03-02

    A system and method are disclosed that provide up to complete transmission of ions between coupled stages with low effective ion losses. A novel "interfaceless" electrospray ionization system is further described that operates the electrospray at a reduced pressure such that standard electrospray sample solutions can be directly sprayed into an electrodynamic ion funnel which provides ion focusing and transmission of ions into a mass analyzer.

  4. Low pressure electrospray ionization system and process for effective transmission of ions

    DOE Patents [OSTI]

    Tang, Keqi (Richland, WA); Page, Jason S (Kennewick, WA); Kelly, Ryan T (West Richland, WA); Smith, Richard D (Richland, WA)

    2012-05-08

    Systems and methods that provide up to complete transmission of ions between coupled stages with low effective ion losses. An "interfaceless" electrospray ionization system is further described that operates an electrospray at a reduced pressure such that standard electrospray sample solutions can be directly sprayed into an electrodynamic ion funnel which provides ion focusing and transmission of ions into a mass analyzer. Furthermore, chambers maintained at different pressures can allow for more optimal operating conditions for an electrospray emitter and an ion guide.

  5. National transmission grid study

    SciTech Connect (OSTI)

    Abraham, Spencer

    2003-05-31

    The National Energy Policy Plan directed the U.S. Department of Energy (DOE) to conduct a study to examine the benefits of establishing a national electricity transmission grid and to identify transmission bottlenecks and measures to address them. DOE began by conducting an independent analysis of U.S. electricity markets and identifying transmission system bottlenecks using DOE’s Policy Office Electricity Modeling System (POEMS). DOE’s analysis, presented in Section 2, confirms the central role of the nation’s transmission system in lowering costs to consumers through increased trade. More importantly, DOE’s analysis also confirms the results of previous studies, which show that transmission bottlenecks and related transmission system market practices are adding hundreds of millions of dollars to consumers’ electricity bills each year. A more detailed technical overview of the use of POEMS is provided in Appendix A. DOE led an extensive, open, public input process and heard a wide range of comments and recommendations that have all been considered.1 More than 150 participants registered for three public workshops held in Detroit, MI (September 24, 2001); Atlanta, GA (September 26, 2001); and Phoenix, AZ (September 28, 2001).

  6. Cost estimation of HVDC transmission system of Bangka’s NPP candidates

    SciTech Connect (OSTI)

    Liun, Edwaren Suparman

    2014-09-30

    Regarding nuclear power plant development in Bangka Island, it can be estimated that produced power will be oversupply for the Bangka Island and needs to transmit to Sumatra or Java Island. The distance between the regions or islands causing considerable loss of power in transmission by alternating current, and a wide range of technical and economical issues. The objective of this paper addresses to economics analysis of direct current transmission system to overcome those technical problem. Direct current transmission has a stable characteristic, so that the power delivery from Bangka to Sumatra or Java in a large scale efficiently and reliably can be done. HVDC system costs depend on the power capacity applied to the system and length of the transmission line in addition to other variables that may be different.

  7. An optimally designed stack effluent sampling system with transpiration for active transmission enhancement 

    E-Print Network [OSTI]

    Schroeder, Troy J.

    1995-01-01

    probe design using 10 iim liquid particles in a free stream velocity of 20 m/s indicated the design (when attached to the elbow assembly inentioned below) to have a transmission ratio of 107, 7% with a standard deviation of 2. 9%. When placed in field...AN OPTIMALLY DESIGNED STACK EFFLUENT SAMPLING SYSTEM WITH TRANSPIRATION FOR ACTIVE TRANSMISSION ENHANCEMENT TROY J. SCHROEDER Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements...

  8. Stochastic Language Generation in a Dialogue System: Toward a Domain Independent Generator

    E-Print Network [OSTI]

    Stochastic Language Generation in a Dialogue System: Toward a Domain Independent Generator Pensacola, FL 32502 {nchambers,jallen}@ihmc.us Abstract Until recently, surface generation in dialogue systems has served the purpose of simply pro- viding a backend to other areas of research. The generation

  9. Modeling Interregional Transmission Congestion in the National Energy Modeling System

    E-Print Network [OSTI]

    Gumerman, Etan; Chan, Peter; Lesieutre, Bernard; Marnay, Chris; Wang, Juan

    2006-01-01

    cheapest availably supply cannot be used; therefore a less-congested system can lead to lower electricity

  10. Electrical Collection and Transmission Systems for Offshore Wind Power: Preprint

    SciTech Connect (OSTI)

    Green, J.; Bowen, A.; Fingersh, L.J.; Wan, Y.

    2007-03-01

    The electrical systems needed for offshore wind farms to collect power from wind turbines--and transmit it to shore--will be a significant cost element of these systems. This paper describes the development of a simplified model of the cost and performance of such systems.

  11. The Reliability Investigation on ACSR Splice Connector Systems Used in Overhead Power transmission Lines

    SciTech Connect (OSTI)

    Wang, Jy-An John [ORNL] [ORNL; Jiang, Hao [ORNL] [ORNL; Ren, Fei [ORNL] [ORNL

    2012-01-01

    Due to material discontinuity and inherited forming mechanism from a crimped-type splice connector, the associated conductor-connector system is highly sensitive to system components aging, especially during high-temperature operations. Furthermore, due to the increase in power demand and limited investment in new infrastructure, existing overhead power transmission lines often need to operate at temperatures higher than the original designed values. This has led to the accelerated aging and degradation of conductor-connector systems. The implications of connector aging are two-fold: (1) significant increase in resistivity of the splice connector and (2) significant reduction in the connector clamping strength. Therefore, splice connectors are one of the weakest links in the electric power transmission infrastructure. In this paper we will discuss the reliability of splice connector systems, including both single stage and two stage splice connectors, used in ACSR conductor of transmission lines under high temperature operations.

  12. Particle trap for compressed gas insulated transmission systems

    DOE Patents [OSTI]

    Cookson, Alan H. (Pittsburgh, PA)

    1985-01-01

    A particle trap is provided for gas insulated transmission lines having a central high voltage conductor supported within an outer coaxial conductive sheath by a dielectric support member. A cavity between the inner conductor and outer sheath is filled with a dielectric insulating gas. A cone-like particle deflector, mounted to the inner conductor, deflects moving particles away from the support member, to radially outer portions of the cavity. A conductive shield is disposed adjacent the outer sheath to form a field-free region in radially outer portions of the cavity, between the shield and the sheath. Particles traveling along the cavity are deflected by the cone-like deflector into the field-free region where they are held immobile. In a vertical embodiment, particles enter the field-free region through an upper end of a gap formed between shield and sheath members. In a horizontal embodiment, the deflector cone has a base which is terminated radially internally of the shield. Apertures in the shield located adjacent the deflector allow passage of deflected particles into the field-free region. The dielectric support member is thereby protected from contaminating particles that may otherwise come to rest thereon.

  13. Actuation system for transmission synchronizer providing regulated engagement pressure

    SciTech Connect (OSTI)

    Akashi, T.; Ito, H.; Yamada, S.

    1986-08-05

    This patent describes a transmission for a vehicle, comprising a rotary power input member, a rotary power output member, and a synchronizer for selectively torque-transmittingly connecting the power input member to the power output member. The synchronizer consists of a first rotary member rotatably around an axis and constantly torque-transmittingly connected with the power input member, a second rotary member rotatably around the axis and constantly torque-transmittingly connected with the power output member, a synchronizer sleeve rotatable around the axis and constantly torque-transmittingly connected with one of the first and second rotary members. The synchronizer sleeve is axially movable relative to the one rotary member so for as torque-transmittingly to mesh with the other of the first and second rotary members, and a synchronizer ring rotatable around the axis and torque-transmittingly connected with the one rotary member when the synchronizer sleeve is axially moved toward the other of the first and second rotary members. The synchronizer ring is frictionally engagable with the other rotary member so as to make rotations of the first and second rotary members approach to one another toward synchronization therebetween when frictionally pressed against the other rotary member.

  14. Development of Wireless Data Transmission System for the Monitoring in Geological Disposal of Radioactive Waste - 12063

    SciTech Connect (OSTI)

    Suzuki, Kei; Eto, Jiro; Tanabe, Hiromi [Radioactive Waste Management Funding and Research Center - RWMC, Tokyo (Japan); Esaki, Taichi; Takamura, Hisashi; Suyama, Yasuhiro [Kajima Corporation, Tokyo (Japan)

    2012-07-01

    The authors have been developing a wireless data transmission system to monitor the performance of a geological disposal system for radioactive waste. The system's concepts, advantages, and a recent development focused on reducing transmitter size to suit narrow spaces such as bentonite buffers and boreholes. A wireless transmitter with a built-in temperature sensor and a connector for external sensors has been developed, measuring 130 mm in length and 50 mm in diameter. The capability of the transmitter was confirmed by transmission tests on the ground and in a bentonite block. (authors)

  15. Independent bases on the spatial wavefunction of four-identical-particle systems

    SciTech Connect (OSTI)

    Xiao, Shuyuan; Deng, Zhixuan; Chen, Hong

    2013-12-15

    We construct the independent bases on the spatial wavefunction of four-identical-particle systems classified under the rotational group SO(3) and the permutation group S{sub 4} with the usage of transformation coefficients that relate wavefunctions described in one set of internal coordinates with those in another. The basis functions for N? 2 are presented in the explicit expressions based on the harmonic oscillator model. Such independent bases are supposed to play a key role in the construction of the wavefunctions of the five-quark states and the variation calculation of four-body systems. Our prescription avoids the spurious states and can be programmed for arbitrary N.

  16. IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 20, NO. 1, FEBRUARY 2005 171 Dispatchable Transmission in RTO Markets

    E-Print Network [OSTI]

    Baldick, Ross

    IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 20, NO. 1, FEBRUARY 2005 171 Dispatchable Transmission to sell transmission services at market prices subject to market power mitigation. generically, and William Stewart, Jr. Abstract--In this paper, we consider transmission owners that bid capacity, under

  17. Abstract--Improvements in transmission and distribution networks can be noticed in most countries that had their system

    E-Print Network [OSTI]

    Morton, David

    , the National Electricity Regulatory Agency has established that the monthly amount of transmission system usage1 Abstract--Improvements in transmission and distribution networks can be noticed in most one of the biggest challenges is the transmission and distribution open access. In Brazil

  18. Online optimisation of information transmission in stochastic spiking neural systems 

    E-Print Network [OSTI]

    Kourkoulas-Chondrorizos, Alexandros; Chondrorizos, Alexandros Kourkoulas

    2012-06-25

    An Information Theoretic approach is used for studying the effect of noise on various spiking neural systems. Detailed statistical analyses of neural behaviour under the influence of stochasticity are carried out and ...

  19. On the absence of simultaneous reflection and transmission in integrable impurity systems

    E-Print Network [OSTI]

    O. A. Castro-Alvaredo; A. Fring; F. Göhmann

    2002-06-01

    We establish that the Yang-Baxter equations in the presence of an impurity can in general only admit solutions of simultaneous tranmission and reflection when the transmission and reflection amplitudes commute in the defect degrees of freedom with an additional exchange of the corresponding rapidities. In the absence of defect degrees of freedom we show in complete generality, that the only exceptions to this are theories which possess rapidity independent bulk scattering matrices. In particular bulk theories with diagonal scattering matrices, can only be the free Boson and Fermion, the Federbush model and their generalizations. These anyonic solutions do not admit the possibility of excited impurity states.

  20. The Economic Case for Bulk Energy Storage in Transmission Systems

    E-Print Network [OSTI]

    of using energy storage, optimized for multiple objectives, including cost, congestion, and emissions: Optimal Generation Expansion Planning with Integration of Variable Re- newables and Bulk Energy Storage Systems Pumped-hydroelectric energy storage has proven to be valuable as bulk energy storage for energy

  1. A test of a 2 Tesla superconducting transmission line magnet system

    SciTech Connect (OSTI)

    Piekarz, Henryk; Carcagno, Ruben; Claypool, Brad; Foster, George W.; Hays, Steven L.; Huang, Yuenian; Kashikhin, Vladimir; Malamud, Ernest; Mazur, Peter O.; Nehring,; Oleck, Andrew; Rabehl, Roger; Schlabach, Phil; Sylvester, Cosmore; Velev, Gueorgui; Volk, James; /Fermilab; Wake, Masayoshi; /KEK, Tsukuba

    2005-09-01

    Superconducting transmission line magnet test system for an injector accelerator of a staged VLHC proton-proton colliding beam accelerator has been built and operated at Fermilab. The 1.5 m long, twin-aperture, combined function dipole magnet of 2 Tesla field is excited by a single turn 100 kA transmission line superconductor. The 100 kA dc current is generated using dc-dc switching converters powered by a bulk 240 kW supply. A pair of horizontally placed conventional leads facilitates transfer of this current to the magnet transmission line superconductor operating at liquid helium temperature. Fabrication of magnet components and magnet assembly work are described. The magnet test system and its operation are presented, and the performance is summarized.

  2. Abstract--In the UK and also worldwide it is certain that future transmission systems will operate with significantly larger

    E-Print Network [OSTI]

    Taylor, Gary

    and offshore. Therefore, in order to operate and control future transmission systems securely and efficiently such generation to a power system. Traditional operation and control methodologies that are currently employed1 Abstract-- In the UK and also worldwide it is certain that future transmission systems

  3. Interdependencies of Electricity Markets with Gas Markets A Case Study of Transmission System Operators

    E-Print Network [OSTI]

    Dixon, Juan

    ISO-NE PJM Chile Chile Chile USA USA SUMMARY Electricity Energy markets do not operate in isolation1 Interdependencies of Electricity Markets with Gas Markets ­ A Case Study of Transmission System USA Brazil Canada Columbia S. Mocarquer, R. Moreno, H. Rudnick, P. Wong, A. DiCaprio Systep Systep PUC

  4. A NEW HIGH ENERGY RESOLUTION NEUTRON TRANSMISSION DETECTOR SYSTEM AT THE GAERTTNER LINAC LABORATORY

    E-Print Network [OSTI]

    Danon, Yaron

    Laboratory P.O. Box 1072, Schenectady, New York 12301-1072 A new high energy resolution modular neutronA NEW HIGH ENERGY RESOLUTION NEUTRON TRANSMISSION DETECTOR SYSTEM AT THE GAERTTNER LINAC LABORATORY capabilities at the Laboratory in and above the resolved resonance energy region from 1 keV to 600 ke

  5. Economic Inefficiency of Passive Transmission Rights in Congested Electricity Systems with Competitive Generation

    E-Print Network [OSTI]

    Oren, Shmuel S.

    Economic Inefficiency of Passive Transmission Rights in Congested Electricity Systems (1997), pp. 63-83 Published by: International Association for Energy Economics Stable URL: http@jstor.org. . International Association for Energy Economics is collaborating with JSTOR to digitize, preserve and extend

  6. Introduction Synaptic transmission

    E-Print Network [OSTI]

    Stoltz, Brian M.

    Introduction ·Synaptic transmission throughout the nervous system is predominantly chemical ·At Channels #12;Neuroreceptors & Synaptic Transmission Synapse Neurotransmitter Receptor/Ion Channel Ion Flow

  7. Impact of Distribution-Connected Large-Scale Wind Turbines on Transmission System Stability during Large Disturbances: Preprint

    SciTech Connect (OSTI)

    Zhang, Y.; Allen, A.; Hodge, B. M.

    2014-02-01

    This work examines the dynamic impacts of distributed utility-scale wind power during contingency events on both the distribution system and the transmission system. It is the first step toward investigating high penetrations of distribution-connected wind power's impact on both distribution and transmission stability.

  8. Model documentation: Natural gas transmission and distribution model of the National Energy Modeling System. Volume 1

    SciTech Connect (OSTI)

    1995-02-17

    The Natural Gas Transmission and Distribution Model (NGTDM) is the component of the National Energy Modeling System (NEMS) that is used to represent the domestic natural gas transmission and distribution system. NEMS was developed in the Office of integrated Analysis and Forecasting of the Energy information Administration (EIA). NEMS is the third in a series of computer-based, midterm energy modeling systems used since 1974 by the EIA and its predecessor, the Federal Energy Administration, to analyze domestic energy-economy markets and develop projections. The NGTDM is the model within the NEMS that represents the transmission, distribution, and pricing of natural gas. The model also includes representations of the end-use demand for natural gas, the production of domestic natural gas, and the availability of natural gas traded on the international market based on information received from other NEMS models. The NGTDM determines the flow of natural gas in an aggregate, domestic pipeline network, connecting domestic and foreign supply regions with 12 demand regions. The methodology employed allows the analysis of impacts of regional capacity constraints in the interstate natural gas pipeline network and the identification of pipeline capacity expansion requirements. There is an explicit representation of core and noncore markets for natural gas transmission and distribution services, and the key components of pipeline tariffs are represented in a pricing algorithm. Natural gas pricing and flow patterns are derived by obtaining a market equilibrium across the three main elements of the natural gas market: the supply element, the demand element, and the transmission and distribution network that links them. The NGTDM consists of four modules: the Annual Flow Module, the Capacity F-expansion Module, the Pipeline Tariff Module, and the Distributor Tariff Module. A model abstract is provided in Appendix A.

  9. Impact of Transmission on Resource Adequacy in Systems with Wind and Solar Power: Preprint

    SciTech Connect (OSTI)

    Ibanez, E.; Milligan, M.

    2012-02-01

    Variable generation is on track to become a significant contributor to electric power systems worldwide. Thus, it is important to analyze the effect that renewables will have on the reliability of systems. In this paper we present a new tool being implemented at the National Renewable Energy Laboratory, which allows the inclusion of variable generation in the power system resource adequacy. The tool is used to quantify the potential contribution of transmission to reliability in highly interconnected systems and an example is provided using the Western Interconnection footprint.

  10. Gas mixing system for imaging of nanomaterials under dynamic environments by environmental transmission electron microscopy

    SciTech Connect (OSTI)

    Akatay, M. Cem; Zvinevich, Yury; Ribeiro, Fabio H. E-mail: estach@bnl.gov; Baumann, Philipp; Stach, Eric A. E-mail: estach@bnl.gov

    2014-03-15

    A gas mixing manifold system that is capable of delivering a stable pressure stream of a desired composition of gases into an environmental transmission electron microscope has been developed. The system is designed to provide a stable imaging environment upon changes of either the composition of the gas mixture or upon switching from one gas to another. The design of the system is described and the response of the pressure inside the microscope, the sample temperature, and sample drift in response to flow and composition changes of the system are reported.

  11. 2000-2011 New York Independent System Operator, Inc. All Rights Reserved. DRAFT FOR DISCUSSION PURPOSES ONLY Hurricane Sandy

    E-Print Network [OSTI]

    © 2000-2011 New York Independent System Operator, Inc. All Rights Reserved. DRAFT ­ FOR DISCUSSION Management Committee Meeting November 2, 2012 #12;2© 2000-2011 New York Independent System Operator, Inc. All Infrastructure Status Operations Recovery Storm Impacts to NYCA Loads Topics #12;3© 2000-2011 New York

  12. Electro-hydraulic control system for a dual-pass continuously variable transmission

    SciTech Connect (OSTI)

    Algrain, M.C.; Anderson, S.R.; Smirl, R.L.

    1991-07-16

    This patent describes a control system for controlling the hydraulic pressure in a dual-pass continuously variable transmission system having a plurality of drive paths from a power input to a power output, and a continuously variable component including first and second variable pulleys disposed respectively on first and second intermediate shafts, the transmission system having first and second clutches engagable to effect transition from a first drive path in which the first variable pulley is the driver pulley to a second drive path in which the second variable pulley is the driver pulley, the transmission system being releasable to effect a transition from the second drive path to the first drive path. It comprises means to provide a primary hydraulic pressure to each of the first and second variable pulleys; means for providing a secondary hydraulic pressure to each of the first and second variable pulleys; means for electrically regulating the primary and secondary pressures responsive to engine conditions; and means for directing the primary and secondary hydraulic pressures to the first and second variable pulleys in response to change of drive path.

  13. California's electricity system of the future scenario analysis in support of public-interest transmission system R&D planning

    E-Print Network [OSTI]

    Eto, Joseph; Stovall, John P.

    2003-01-01

    The Future of Electric Transmission in the United States.Environmental Impacts of Electric Transmission In order toTransmission R&D Planning Underwater application of electric

  14. California's electricity system of the future scenario analysis in support of public-interest transmission system R&D planning

    E-Print Network [OSTI]

    Eto, Joseph; Stovall, John P.

    2003-01-01

    Impacts of Electricity Transmission Scenario Analysis forImpacts of Electricity Transmission Scenario Analysis forhas also commissioned Electricity Transmission Research and

  15. Pulse-excited, auto-zeroing multiple channel data transmission system

    DOE Patents [OSTI]

    Fasching, G.E.

    1985-02-22

    A multiple channel data transmission system is provided in which signals from a plurality of pulse operated transducers and a corresponding plurality of pulse operated signal processor channels are multiplexed for single channel FM transmission to a receiving station. The transducers and corresponding channel amplifiers are powered by pulsing the dc battery power to these devices to conserve energy and battery size for long-term data transmission from remote or inaccessible locations. Auto zeroing of the signal channel amplifiers to compensate for drift associated with temperature changes, battery decay, component aging, etc., in each channel is accomplished by means of a unique auto zero feature which between signal pulses holds a zero correction voltage on an integrating capacitor coupled to the corresponding channel amplifier output. Pseudo-continuous outputs for each channel are achieved by pulsed sample-and-hold circuits which are updated at the pulsed operation rate. The sample-and-hold outputs are multiplexed into an FM/FM transmitter for transmission to an FM receiver station for demultiplexing and storage in separate channel recorders.

  16. Pulse-excited, auto-zeroing multiple channel data transmission system

    DOE Patents [OSTI]

    Fasching, George E. (Morgantown, WV)

    1987-01-01

    A multiple channel data transmission system is provided in which signals from a plurality of pulse operated transducers and a corresponding plurality of pulse operated signal processor channels are multiplexed for single channel FM transmission to a receiving station. The transducers and corresponding channel amplifiers are powered by pulsing the dc battery power to these devices to conserve energy and battery size for long-term data transmission from remote or inaccessible locations. Auto zeroing of the signal channel amplifiers to compensate for drift associated with temperature changes, battery decay, component aging, etc., in each channel is accomplished by means of a unique auto zero feature which between signal pulses holds a zero correction voltage on an integrating capacitor coupled to the corresponding channel amplifier output. Pseudo-continuous outputs for each channel are achieved by pulsed sample-and-hold circuits which are updated at the pulsed operation rate. The sample-and-hold outputs are multiplexed into an FM/FM transmitter for transmission to an FM receiver station for demultiplexing and storage in separate channel recorders.

  17. Interplay of light transmission and catalytic exchange current in photoelectrochemical systems

    SciTech Connect (OSTI)

    Fountaine, Katherine T.; Lewerenz, Hans J.; Atwater, Harry A.

    2014-10-27

    We develop an analytic current-voltage expression for a variable junction photoelectrochemical (PEC) cell and use it to investigate and illustrate the influence of the optical and electrical properties of catalysts on the optoelectronic performance of PEC devices. Specifically, the model enables a simple, yet accurate accounting of nanostructured catalyst optical and electrical properties through incorporation of an optical transmission factor and active catalytic area factor. We demonstrate the utility of this model via the output power characteristics of an exemplary dual tandem solar cell with indium gallium phosphide and indium gallium arsenide absorbers with varying rhodium catalyst nanoparticle loading. The approach highlights the importance of considering interactions between independently optimized components for optimal PEC device design.

  18. Independent Peer Reviews

    SciTech Connect (OSTI)

    2012-03-16

    Independent Assessments: DOE's Systems Integrator convenes independent technical reviews to gauge progress toward meeting specific technical targets and to provide technical information necessary for key decisions.

  19. Direct participation of electrical loads in the California independent system operator markets during the Summer of 2000

    SciTech Connect (OSTI)

    Marnay, Chris; Hamachi, Kristina S.; Khavkin, Mark; Siddiqui, Afzal S.

    2001-04-01

    California's restructured electricity markets opened on 1 April 1998. The former investor-owned utilities were functionally divided into generation, transmission, and distribution activities, all of their gas-fired generating capacity was divested, and the retail market was opened to competition. To ensure that small customers shared in the expected benefit of lower prices, the enabling legislation mandated a 10% rate cut for all customers, which was implemented in a simplistic way that fossilized 1996 tariff structures. Rising fuel and environmental compliance costs, together with a reduced ability to import electricity, numerous plant outages, and exercise of market power by generators drove up wholesale electricity prices steeply in 2000, while retail tariffs remained unchanged. One of the distribution/supply companies entered bankruptcy in April 2001, and another was insolvent. During this period, two sets of interruptible load programs were in place, longstanding ones organized as special tariffs by the distribution/supply companies and hastily established ones run directly by the California Independent System Operator (CAISO). The distribution/supply company programs were effective at reducing load during the summer of 2000, but because of the high frequency of outages required by a system on the brink of failure, customer response declined and many left the tariff. The CAISO programs failed to attract enough participation to make a significant difference to the California supply demand imbalance. The poor performance of direct load participation in California's markets reinforces the argument for accurate pricing of electricity as a stimulus to energy efficiency investment and as a constraint on market volatility.

  20. DEVELOPMENT OF RISK-BASED AND TECHNOLOGY-INDEPENDENT SAFETY CRITERIA FOR GENERATION IV SYSTEMS

    SciTech Connect (OSTI)

    William E. Kastenberg; Edward Blandford; Lance Kim

    2009-03-31

    This project has developed quantitative safety goals for Generation IV (Gen IV) nuclear energy systems. These safety goals are risk based and technology independent. The foundations for a new approach to risk analysis has been developed, along with a new operational definition of risk. This project has furthered the current state-of-the-art by developing quantitative safety goals for both Gen IV reactors and for the overall Gen IV nuclear fuel cycle. The risk analysis approach developed will quantify performance measures, characterize uncertainty, and address a more comprehensive view of safety as it relates to the overall system. Appropriate safety criteria are necessary to manage risk in a prudent and cost-effective manner. This study is also important for government agencies responsible for managing, reviewing, and for approving advanced reactor systems because they are charged with assuring the health and safety of the public.

  1. Enhanced Geothermal Systems (EGS) comparing water with CO2 as heat transmission fluids

    E-Print Network [OSTI]

    Pruess, Karsten

    2007-01-01

    Supercritical CO 2 as Heat Transmission Fluid in the EGSof Using Supercritical CO2 as Heat Transmission Fluid in an2 instead of water as heat transmission fluid (D.W. Brown,

  2. Natural Gas Transmission and Distribution Model of the National Energy Modeling System. Volume 1

    SciTech Connect (OSTI)

    1998-01-01

    The Natural Gas Transmission and Distribution Model (NGTDM) is the component of the National Energy Modeling System (NEMS) that is used to represent the domestic natural gas transmission and distribution system. The NGTDM is the model within the NEMS that represents the transmission, distribution, and pricing of natural gas. The model also includes representations of the end-use demand for natural gas, the production of domestic natural gas, and the availability of natural gas traded on the international market based on information received from other NEMS models. The NGTDM determines the flow of natural gas in an aggregate, domestic pipeline network, connecting domestic and foreign supply regions with 12 demand regions. The purpose of this report is to provide a reference document for model analysts, users, and the public that defines the objectives of the model, describes its basic design, provides detail on the methodology employed, and describes the model inputs, outputs, and key assumptions. Subsequent chapters of this report provide: an overview of NGTDM; a description of the interface between the NEMS and NGTDM; an overview of the solution methodology of the NGTDM; the solution methodology for the Annual Flow Module; the solution methodology for the Distributor Tariff Module; the solution methodology for the Capacity Expansion Module; the solution methodology for the Pipeline Tariff Module; and a description of model assumptions, inputs, and outputs.

  3. Analysis of operations and cyber security policies for a system of cooperating Flexible Alternating Current Transmission System (FACTS) devices.

    SciTech Connect (OSTI)

    Phillips, Laurence R.; Tejani, Bankim; Margulies, Jonathan; Hills, Jason L.; Richardson, Bryan T.; Baca, Micheal J.; Weiland, Laura

    2005-12-01

    Flexible Alternating Current Transmission Systems (FACTS) devices are installed on electric power transmission lines to stabilize and regulate power flow. Power lines protected by FACTS devices can increase power flow and better respond to contingencies. The University of Missouri Rolla (UMR) is currently working on a multi-year project to examine the potential use of multiple FACTS devices distributed over a large power system region in a cooperative arrangement in which the FACTS devices work together to optimize and stabilize the regional power system. The report describes operational and security challenges that need to be addressed to employ FACTS devices in this way and recommends references, processes, technologies, and policies to address these challenges.

  4. Competitive Ratio Analysis of Online Algorithms to Minimize Data Transmission Time in Energy Harvesting Communication System

    E-Print Network [OSTI]

    Vaze, Rahul

    2011-01-01

    We consider the optimal online packet scheduling problem in a single-user energy harvesting wireless communication system, where energy is harvested from natural renewable sources, making future energy arrivals instants and amounts random in nature. The most general case of arbitrary energy arrivals is considered where neither the future energy arrival instants or amount, nor their distribution is known. The problem considered is to adaptively change the transmission rate according to the causal energy arrival information, such that the time by which all packets are delivered is minimized. We assume that all bits have arrived and are ready at the source before the transmission begins. For a minimization problem, the utility of an online algorithm is tested by finding its competitive ratio or competitiveness that is defined to be the maximum of the ratio of the gain of the online algorithm with the optimal offline algorithm over all input sequences. We derive a lower and upper bound on the competitive ratio of...

  5. Renewable Electricity Futures Study Volume 4: Bulk Electric Power Systems: Operations and Transmission Planning

    Office of Energy Efficiency and Renewable Energy (EERE)

    This volume focuses on the role of variable renewable generation in creating challenges to the planning and operations of power systems and the expansion of transmission to deliver electricity from remote resources to load centers. The technical and institutional changes to power systems that respond to these challenges are, in many cases, underway, driven by the economic benefits of adopting more modern communication, information, and computation technologies that offer significant operational cost savings and improved asset utilization. While this volume provides background information and numerous references, the reader is referred to the literature for more complete tutorials.

  6. Midwest Transmission Workshop II Summary

    SciTech Connect (OSTI)

    Kevin Bryan

    2002-12-05

    OAK-B135 After introductions of all participants, Abby Arnold, RESOLVE, reviewed the purpose of the meeting and the agenda. The purpose of the workshop was to share the results of the Midwest Independent System Operator (MISO) scenario development for wind and other fuel sources and the corresponding implications for transmission throughout the MISO control area. The workshop agenda is included in Attachment A.

  7. Systems and methods for cylindrical hall thrusters with independently controllable ionization and acceleration stages

    SciTech Connect (OSTI)

    Diamant, Kevin David; Raitses, Yevgeny; Fisch, Nathaniel Joseph

    2014-05-13

    Systems and methods may be provided for cylindrical Hall thrusters with independently controllable ionization and acceleration stages. The systems and methods may include a cylindrical channel having a center axial direction, a gas inlet for directing ionizable gas to an ionization section of the cylindrical channel, an ionization device that ionizes at least a portion of the ionizable gas within the ionization section to generate ionized gas, and an acceleration device distinct from the ionization device. The acceleration device may provide an axial electric field for an acceleration section of the cylindrical channel to accelerate the ionized gas through the acceleration section, where the axial electric field has an axial direction in relation to the center axial direction. The ionization section and the acceleration section of the cylindrical channel may be substantially non-overlapping.

  8. Magnetohydrodynamic electromagnetic pulse (MHD-EMP) interaction with power transmission and distribution systems

    SciTech Connect (OSTI)

    Tesche, F.M. [Tesche (F.M.), Dallas, TX (United States); Barnes, P.R. [Oak Ridge National Lab., TN (United States); Meliopoulos, A.P.S. [Georgia Inst. of Tech., Atlanta, GA (United States). Dept. of Electrical Engineering

    1992-02-01

    This report discusses the effects of the late-time high-altitude electromagnetic pulse (HEMP) on electrical transmission and distribution (T&D) systems. This environment, known as the magnetohydrodynamic electromagnetic pulse (MHD-EMP), is a very slowly varying electric field induced in the earth`s surface, similar to the field induced by a geomagnetic storm. It can result in the flow of a quasi-dc current in grounded power lines and in the subsequent magnetic saturation of transformers. This saturation, in turn, causes 6-Hz harmonic distortion and an increase in the reactive power required by generation facilities. This report analyzes and discusses these phenomena. The MHD-EMP environment is briefly discussed, and a simplified form of the earth-induced electric field is developed for use in a parametric study of transmission line responses. Various field coupling models are described, and calculated results for the responses of both transmission- and distribution-class power lines are presented. These calculated responses are compared with measurements of transformer operation under dc excitation to infer the MHD-EMP response of these power system components. It is found that the MHD-EMP environment would have a marked effect on a power system by inducing up to several hundreds of amperes of quasi-dc current on power lines. These currents will cause transformers to saturate which could result in excessive harmonic generation, voltage swings, and voltage suppression. The design of critical facilities which are required to operate during and after MHD-EMP events will have to be modified in order to mitigate the effects of these abnormal power system conditions.

  9. Lessons from the History of Independent System Operators in the Energy Sector, with applications to the Water Sector

    E-Print Network [OSTI]

    Pollitt, Michael G.

    %; CIC Cajastur 5%; Bancaja Inversiones 5%; Kartera 1 (BBK) 5%; SEPI 5%; Oman Oil Holdings Spain 5%; Free Float 70%) 5520.2 6,780,000** * ITSO Energinet (Denmark) 7.7 bcm (82,888 GWh) Independent public enterprise owned by the Danish state... ) Miscellaneous Transmission Expenses . . . p.321, line 97 (567) Rents . . . p.321, line 98 TOTAL Operation 40,031,734 35,447,889 15,586,336 p.321, line 99 (568) Maintenance Supervision and Engineering 8,666,188 . p.321, line 101 (569) Maintenance...

  10. The development of a subsea power transmission system for deep water boosting applications

    SciTech Connect (OSTI)

    Godinho, C.A.; Campagnac, L.A.; Nicholson, A.; Magalhaes, W.M.

    1996-12-31

    This paper presents the development of a subsea power transmission in medium voltage and variable frequency, as a key system for application of Boosting Technology and, more particularly, for Electrical Submersible Pumping in deep water wells. The focuses of this paper are mainly on the design and manufacture of subsea power cables and transformers for 1,000 m water depth. The production from a subsea well equipped with ESP`s is a fact since October/94, with the first installation in the Campos Basin, Brazil. The development of the subsea power transmission in medium voltage and variable frequency will allow the installation of a Boosting System in deep water at long distance (25 km or more) from the production platform. The design and manufacture of subsea power cables and subsea power transformers, as well as the integration of the complete power system is a result of a Technological Cooperation Agreement with Tronic, Pirelli, Siemens A.G. and Siemens Brazil. As a result from this agreement subsea power cables up to 12/20 kV voltage level, conductor sizes from 35 to 150 mm{sup 2}, oil filled subsea power transformer rated at 750 kVA, nominal voltage ratio 10,000/3,000 V and the electrical connectors to X-tree will be developed and manufactured.

  11. Engineered optical nonlinearities and enhanced light transmission in soft-matter systems with tunable polarizabilities

    E-Print Network [OSTI]

    Weining Man; Shima Fardad; Ze Zhang; Jai Prakash; Michael Lau; Peng Zhang; Matthias Heinrich; Demetrios N. Christodoulides; Zhigang Chen

    2013-08-14

    In this work, we demonstrate that the nonlinear response of certain soft-matter systems can be tailored at will by appropriately engineering their optical polarizability. In particular, we deliberately synthesize stable colloidal suspensions with negative polarizabilities, and observe for the first time robust propagation and enhanced transmission of self-trapped light over long distances that would have been otherwise impossible in conventional suspensions with positive polarizabilities. What greatly facilitates this behavior is an induced saturable nonlinear optical response introduced by the thermodynamic properties of these colloidal systems. This in turn leads to a substantial reduction in scattering via self-activated transparency effects. Our results may open up new opportunities in developing soft-matter systems with tunable optical nonlinearities.

  12. Integrating Renewable Energy into the Transmission and Distribution System of the U. S. Virgin Islands

    SciTech Connect (OSTI)

    Burman, K.; Olis, D.; Gevorgian, V.; Warren, A.; Butt, R.; Lilienthal, P.; Glassmire, J.

    2011-09-01

    This report focuses on the economic and technical feasibility of integrating renewable energy technologies into the U.S. Virgin Islands transmission and distribution systems. The report includes three main areas of analysis: 1) the economics of deploying utility-scale renewable energy technologies on St. Thomas/St. John and St. Croix; 2) potential sites for installing roof- and ground-mount PV systems and wind turbines and the impact renewable generation will have on the electrical subtransmission and distribution infrastructure, and 3) the feasibility of a 100- to 200-megawatt power interconnection of the Puerto Rico Electric Power Authority (PREPA), Virgin Islands Water and Power Authority (WAPA), and British Virgin Islands (BVI) grids via a submarine cable system.

  13. California's electricity system of the future scenario analysis in support of public-interest transmission system R&D planning

    E-Print Network [OSTI]

    Eto, Joseph; Stovall, John P.

    2003-01-01

    asset monitoring and analysis tools for reliability management B. Transmission power-asset monitoring and analysis tools for reliability management. B. Transmission power-asset monitoring and analysis tools for reliability management. B. Transmission power-

  14. California's electricity system of the future scenario analysis in support of public-interest transmission system R&D planning

    SciTech Connect (OSTI)

    Eto, Joseph; Stovall, John P.

    2003-04-01

    The California Energy Commission directed the Consortium for Electric Reliability Technology Solutions to analyze possible future scenarios for the California electricity system and assess transmission research and development (R&D) needs, with special emphasis on prioritizing public-interest R&D needs, using criteria developed by the Energy Commission. The scenarios analyzed in this report are not predictions, nor do they express policy preferences of the project participants or the Energy Commission. The public-interest R&D needs that are identified as a result of the analysis are one input that will be considered by the Energy Commission's Public Interest Energy Research staff in preparing a transmission R&D plan.

  15. Enhanced geothermal systems (EGS) with CO2 as heat transmission fluid--A scheme for combining recovery of renewable energy with geologic storage of CO2

    E-Print Network [OSTI]

    Pruess, K.

    2010-01-01

    in Enhanced Geothermal Systems (EGS) with CO 2 as WorkingTransmission Fluid in the EGS Integrating the Carbon Storageand F. Rummel. The Deep EGS (Enhanced Geothermal System)

  16. UNDERSTANDING METHANE EMISSIONS SOURCES AND VIABLE MITIGATION MEASURES IN THE NATURAL GAS TRANSMISSION SYSTEMS: RUSSIAN AND U.S. EXPERIENCE

    SciTech Connect (OSTI)

    Ishkov, A.; Akopova, Gretta; Evans, Meredydd; Yulkin, Grigory; Roshchanka, Volha; Waltzer, Suzie; Romanov, K.; Picard, David; Stepanenko, O.; Neretin, D.

    2011-10-01

    This article will compare the natural gas transmission systems in the U.S. and Russia and review experience with methane mitigation technologies in the two countries. Russia and the United States (U.S.) are the world's largest consumers and producers of natural gas, and consequently, have some of the largest natural gas infrastructure. This paper compares the natural gas transmission systems in Russia and the U.S., their methane emissions and experiences in implementing methane mitigation technologies. Given the scale of the two systems, many international oil and natural gas companies have expressed interest in better understanding the methane emission volumes and trends as well as the methane mitigation options. This paper compares the two transmission systems and documents experiences in Russia and the U.S. in implementing technologies and programs for methane mitigation. The systems are inherently different. For instance, while the U.S. natural gas transmission system is represented by many companies, which operate pipelines with various characteristics, in Russia predominately one company, Gazprom, operates the gas transmission system. However, companies in both countries found that reducing methane emissions can be feasible and profitable. Examples of technologies in use include replacing wet seals with dry seals, implementing Directed Inspection and Maintenance (DI&M) programs, performing pipeline pump-down, applying composite wrap for non-leaking pipeline defects and installing low-bleed pneumatics. The research methodology for this paper involved a review of information on methane emissions trends and mitigation measures, analytical and statistical data collection; accumulation and analysis of operational data on compressor seals and other emission sources; and analysis of technologies used in both countries to mitigate methane emissions in the transmission sector. Operators of natural gas transmission systems have many options to reduce natural gas losses. Depending on the value of gas, simple, low-cost measures, such as adjusting leaking equipment components, or larger-scale measures, such as installing dry seals on compressors, can be applied.

  17. Model documentation: Natural Gas Transmission and Distribution Model of the National Energy Modeling System; Volume 1

    SciTech Connect (OSTI)

    1994-02-24

    The Natural Gas Transmission and Distribution Model (NGTDM) is a component of the National Energy Modeling System (NEMS) used to represent the domestic natural gas transmission and distribution system. NEMS is the third in a series of computer-based, midterm energy modeling systems used since 1974 by the Energy Information Administration (EIA) and its predecessor, the Federal Energy Administration, to analyze domestic energy-economy markets and develop projections. This report documents the archived version of NGTDM that was used to produce the natural gas forecasts used in support of the Annual Energy Outlook 1994, DOE/EIA-0383(94). The purpose of this report is to provide a reference document for model analysts, users, and the public that defines the objectives of the model, describes its basic design, provides detail on the methodology employed, and describes the model inputs, outputs, and key assumptions. It is intended to fulfill the legal obligation of the EIA to provide adequate documentation in support of its models (Public Law 94-385, Section 57.b.2). This report represents Volume 1 of a two-volume set. (Volume 2 will report on model performance, detailing convergence criteria and properties, results of sensitivity testing, comparison of model outputs with the literature and/or other model results, and major unresolved issues.) Subsequent chapters of this report provide: (1) an overview of the NGTDM (Chapter 2); (2) a description of the interface between the National Energy Modeling System (NEMS) and the NGTDM (Chapter 3); (3) an overview of the solution methodology of the NGTDM (Chapter 4); (4) the solution methodology for the Annual Flow Module (Chapter 5); (5) the solution methodology for the Distributor Tariff Module (Chapter 6); (6) the solution methodology for the Capacity Expansion Module (Chapter 7); (7) the solution methodology for the Pipeline Tariff Module (Chapter 8); and (8) a description of model assumptions, inputs, and outputs (Chapter 9).

  18. Probabilistic Approach to Quantifying the Contribution of Variable Generation and Transmission to System Reliability: Preprint

    SciTech Connect (OSTI)

    Ibanez, E.; Milligan, M.

    2012-09-01

    The increasing electrical load served by variable generation (VG), such as wind and solar energy, in the United States and many other countries has stimulated an interesting line of research to better quantify the capacity value of these resources. Methods applied traditionally to thermal units based on their average outage rates do not apply to VG because of their uncertain and non-dispatchable nature. The North American Electric Reliability Corporation's Integration of Variable Generation Task Force recently released a report that highlighted the need to develop and benchmark underlying loss-of-load expectation and related metrics that reasonably and fairly calculate the contribution to planning reserves, or capacity value, of solar and wind power. As the fraction of generation coming from VG becomes more significant, their estimated capacity value will have a larger impact on system planning. In this paper, we provide a method to include VG in traditional probabilistic-based adequacy methods. This method has been implemented in the Renewable Energy Probabilistic Resource Assessment tool developed at the National Renewable Energy Laboratory. Through an example based on the U.S. Western Interconnection, this method is applied to assess the effect that transmission can have on resource adequacy. We also analyze the interactions between available transmission and capacity value for VG.

  19. Implementation and commissioning of an integrated micro-CT/RT system with computerized independent jaw collimation

    SciTech Connect (OSTI)

    Jensen, Michael D.; Hrinivich, W. Thomas; Jung, Jongho A.; Holdsworth, David W.; Department of Medical Biophysics, The University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 3K7; Department of Surgery, The University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 3K7 ; Drangova, Maria; Chen, Jeff; Department of Medical Biophysics, The University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 3K7; Department of Oncology, The University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 3K7 ; Wong, Eugene; Department of Medical Biophysics, The University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 3K7; Department of Oncology, The University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 3K7; Department of Physics and Engineering, London Regional Cancer Program, London Health Sciences Centre, 800 Commissioners Road East, London, Ontario N6A 5W9

    2013-08-15

    Purpose: To design, construct, and commission a set of computer-controlled motorized jaws for a micro-CT/RT system to perform conformal image-guided small animal radiotherapy.Methods: The authors designed and evaluated a system of custom-built motorized orthogonal jaws, which allows the delivery of off-axis rectangular fields on a GE eXplore CT 120 preclinical imaging system. The jaws in the x direction are independently driven, while the y-direction jaws are symmetric. All motors have backup encoders, verifying jaw positions. Mechanical performance of the jaws was characterized. Square beam profiles ranging from 2 × 2 to 60 × 60 mm{sup 2} were measured using EBT2 film in the center of a 70 × 70 × 22 mm{sup 3} solid water block. Similarly, absolute depth dose was measured in a solid water and EBT2 film stack 50 × 50 × 50 mm{sup 3}. A calibrated Farmer ion chamber in a 70 × 70 × 20 mm{sup 3} solid water block was used to measure the output of three field sizes: 50 × 50, 40 × 40, and 30 × 30 mm{sup 2}. Elliptical target plans were delivered to films to assess overall system performance. Respiratory-gated treatment was implemented on the system and initially proved using a simple sinusoidal motion phantom. All films were scanned on a flatbed scanner (Epson 1000XL) and converted to dose using a fitted calibration curve. A Monte Carlo beam model of the micro-CT with the jaws has been created using BEAMnrc for comparison with the measurements. An example image-guided partial lung irradiation in a rat is demonstrated.Results: The averaged random error of positioning each jaw is less than 0.1 mm. Relative output factors measured with the ion chamber agree with Monte Carlo simulations within 2%. Beam profiles and absolute depth dose curves measured from the films agree with simulations within measurement uncertainty. Respiratory-gated treatments applied to a phantom moving with a peak-to-peak amplitude of 5 mm showed improved beam penumbra (80%–20%) from 3.9 to 0.8 mm.Conclusions: A set of computer-controlled motorized jaws for a micro-CT/RT system were constructed with position reliably better than a tenth of a millimeter. The hardware system is ready for image-guided conformal radiotherapy for small animals with capability of respiratory-gated delivery.

  20. Optical bistability enabled control of resonant light transmission for an atom-cavity system

    E-Print Network [OSTI]

    Sawant, Rahul

    2015-01-01

    The control of light transmission through a Fabry-Perot cavity containing atoms is theoretically investigated, when the cavity mode beam and an intersecting control beam are both close to specific atomic resonances. A four-level atomic system is considered and its interaction with the cavity mode is studied by solving for the time dependent cavity field and atomic state populations. The conditions for optical bistability of the atom-cavity system are obtained in steady state limit. For an ensemble of atoms in the cavity mode, the response of the intra-cavity light intensity to the intersecting resonant beam is understood for stationary atoms (closed system) and non-static atoms (open system). The open system is modelled by adjusting the atomic state populations to represent the exchange of atoms in the cavity mode, with the thermal environment. The solutions to the model are used to qualitatively explain the observed steady state and transient behaviour of the light in the cavity mode, in Sharma et. al. [1]. ...

  1. Abstract--The seven Independent System Operators and Regional Transmission Organizations (ISO/RTOs) in the United

    E-Print Network [OSTI]

    McCalley, James D.

    such as demand side response, carbon trade, energy efficiency, renewable energy and credit risk are discussed management, ancillary services, credit risk management, and more services which have broadened significantly in recent years. This paper shows how PJM plays essential roles in managing and improving flow of energy

  2. Model documentation Natural Gas Transmission and Distribution Model of the National Energy Modeling System. Volume 1

    SciTech Connect (OSTI)

    1996-02-26

    The Natural Gas Transmission and Distribution Model (NGTDM) of the National Energy Modeling System is developed and maintained by the Energy Information Administration (EIA), Office of Integrated Analysis and Forecasting. This report documents the archived version of the NGTDM that was used to produce the natural gas forecasts presented in the Annual Energy Outlook 1996, (DOE/EIA-0383(96)). The purpose of this report is to provide a reference document for model analysts, users, and the public that defines the objectives of the model, describes its basic approach, and provides detail on the methodology employed. Previously this report represented Volume I of a two-volume set. Volume II reported on model performance, detailing convergence criteria and properties, results of sensitivity testing, comparison of model outputs with the literature and/or other model results, and major unresolved issues.

  3. Montana-to-Washington Transmission System Upgrade Project - M2W

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    & Reliability Projects Expand Projects Skip navigation links Line Projects Big Eddy-Knight Central Ferry Lower Monumental Grand Coulee Transmission Line Replacement...

  4. Enhanced Geothermal Systems (EGS) comparing water with CO2 as heat transmission fluids

    E-Print Network [OSTI]

    Pruess, Karsten

    2007-01-01

    Interactions at the Supercritical CO2–liquid InterfaceEnergy Concept Utilizing Supercritical CO2 Instead of Water,Feasibility of Using Supercritical CO2 as Heat Transmission

  5. Transmission through the

    E-Print Network [OSTI]

    Yanikomeroglu, Halim

    Optimum Transmission through the GMAC D. Calabuig, R. Gohary, H. Yanikomero. 1/22 Introduction System model Optimization Algorithm Conclusions Optimum Transmission through the Gaussian Multiple Access Engineering Carleton University Ottawa, Canada July 8, 2013 #12;Optimum Transmission through the GMAC D

  6. Transmission Enhancement Technology Report

    E-Print Network [OSTI]

    a recommendation of the most cost-effective methods and technologies to enhance electricity transmission from a review of methods and technologies with potential to enhance electricity transmission capability-traditional methods and technologies to increase the capacity of the high voltage electric power transmission system

  7. Incentives for Methane Mitigation and Energy-Efficiency Improvements in Case of Ukraine’s Natural Gas Transmission System

    SciTech Connect (OSTI)

    Roshchanka, Volha; Evans, Meredydd

    2014-06-01

    Reducing methane losses is a concern for climate change policy and energy policy. The energy sector is the major source of methane emissions into the atmosphere. Reducing methane emissions and avoiding combustion can be very cost-effective, but various barriers prevent such energy-efficiency measures from taking place. To date, few examples of industry-wide improvements exist. One example of substantial investments into upgrading natural gas transmission system comes from Ukraine. The Ukrainian transmission company, Ukrtransgaz, reduced its own system’s natural gas consumption by 68 percent in 2011 compared to the level in 2005. Evaluating reductions in methane emissions is challenging because of lack of accurate data and gaps in accounting methodologies. At the same time, Ukraine’s transmission system has undergone improvements that, at the very least, have contained methane emissions, if not substantially reduced them. In this paper, we describe recent developments in Ukraine’s natural gas transmission system and analyze the incentives that forced the sector to pay close attention to its methane losses. Ukraine is one of most energy-intensive countries, among the largest natural gas consumers in the world, and a significant emitter of methane. The country is also dependent on imports of natural gas. A combination of steep increases in the price of imported natural gas, and comprehensive domestic environmental and energy policies, regional integration policy, and international environmental agreements has created conditions for successful methane emission and combustion reductions. Learning about such case studies can help us design better policies elsewhere.

  8. Independent Verification and Validation Of SAPHIRE 8 System Test Plan Project Number: N6423 U.S. Nuclear Regulatory Commission

    SciTech Connect (OSTI)

    Kent Norris

    2010-02-01

    The purpose of the Independent Verification and Validation (IV&V) role in the evaluation of the SAPHIRE System Test Plan is to assess the approach to be taken for intended testing activities associated with the SAPHIRE software product. The IV&V team began this endeavor after the software engineering and software development of SAPHIRE had already been in production.

  9. 1?10 kW Stationary Combined Heat and Power Systems Status and Technical Potential: Independent Review

    SciTech Connect (OSTI)

    Maru, H. C.; Singhal, S. C.; Stone, C.; Wheeler, D.

    2010-11-01

    This independent review examines the status and technical potential of 1-10 kW stationary combined heat and power fuel cell systems and analyzes the achievability of the DOE cost, efficiency, and durability targets for 2012, 2015, and 2020.

  10. Hawaii International Conference on System Sciences, January 3-6, 2001, Maui, Hawaii. 2001 IEEE Modeling Blackout Dynamics in Power Transmission Networks

    E-Print Network [OSTI]

    Newman, David

    in electric power transmission systems is implemented and studied in simple networks with a regular structure Electric power transmission systems are complex engineering systems with many interacting components failure, weather conditions, vandalism, and human error [1]. The dominant causes triggering blackouts

  11. Features of a fully renewable US electricity system: Optimized mixes of wind and solar PV and transmission grid extensions

    E-Print Network [OSTI]

    Jacobson, Mark

    . To quantify general features of such a weather dependent electricity supply in the contiguous US, windFeatures of a fully renewable US electricity system: Optimized mixes of wind and solar PV and transmission grid extensions Sarah Becker a, b, * , Bethany A. Frew b , Gorm B. Andresen d, b , Timo Zeyer c

  12. SGR 1806-20 Is a Set of Independent Relaxation Systems

    E-Print Network [OSTI]

    David M. Palmer

    1999-01-10

    The Soft Gamma Repeater 1806-20 produced patterns of bursts during its 1983 outburst that indicate multiple independent energy accumulation sites, each driven by a continuous power source, with sudden, incomplete releases of the accumulated energy. The strengths of the power sources and their durations of activity vary over several orders of magnitude.

  13. Reducing impact of cache miss stalls in embedded systems by extracting guaranteed independent instructions

    E-Print Network [OSTI]

    Bournoutian, Garo; Orailoglu, Alex

    2010-01-01

    signal processors for embedded systems and SoCs 3. Jouppimiss stalls in embedded systems by extracting guaranteedparticular, in mobile embedded systems, where power and area

  14. On adaptive transmission, signal detection and channel estimation for multiple antenna systems 

    E-Print Network [OSTI]

    Xie, Yongzhe

    2004-11-15

    study the minimum outage probability transmission schemes in a multiple-input-single-output (MISO) flat fading channel assuming partial CSIT. Considering two special cases: the mean feedback and the covariance feedback, we derive the optimum spatial...

  15. Subsampled DPCM system design for speech transmission over lossy packet networks 

    E-Print Network [OSTI]

    Siddiqui, Aqeel Ahmed

    1995-01-01

    various traffic distributions and patterns, can utilize the network efficiently. This is done through the use of statistical multiplexing. A common feature in packet-switched speech transmission networks is the need to discard packets occasionally...

  16. State Research, Outreach, and Technical Assistance to Imrove the Nation's Transmission & Distribution System

    SciTech Connect (OSTI)

    J. Fox; M. Keogh; A. Spahn

    2009-05-20

    The broad purpose of this project was to work cooperatively with the DOE to explore technology nad policy issues associated with more efficient, reliable, and affordable electric transmission and distribution use.

  17. Electricity transmission congestion costs: A review of recent reports

    E-Print Network [OSTI]

    Lesieutre, Bernard C.; Eto, Joseph H.

    2003-01-01

    LBNL-54049 Electricity Transmission Congestion Costs: Astate of U.S. electricity transmission system and whether itof the U.S. electricity transmission system for enabling

  18. Number of lightning discharges causing damage to lightning arrester cables for aerial transmission lines in power systems

    SciTech Connect (OSTI)

    Nikiforov, E. P. [Electric Power Scientific Research Institute (VNIIE), branch of OAO 'NTTs Elektroenergetika' (Russian Federation)

    2009-07-15

    Damage by lightning discharges to lightning arrester cables for 110-175 kV aerial transmission lines is analyzed using data from power systems on incidents with aerial transmission lines over a ten year operating period (1997-2006). It is found that failures of lightning arrester cables occur when a tensile force acts on a cable heated to the melting point by a lightning current. The lightning currents required to heat a cable to this extent are greater for larger cable cross sections. The probability that a lightning discharge will develop decreases as the amplitude of the lightning current increases, which greatly reduces the number of lightning discharges which damage TK-70 cables compared to TK-50 cables. In order to increase the reliability of lightning arrester cables for 110 kV aerial transmission lines, TK-70 cables should be used in place of TK-50 cables. The number of lightning discharges per year which damage lightning arrester cables is lowered when the density of aerial transmission lines is reduced within the territory of electrical power systems. An approximate relationship between these two parameters is obtained.

  19. In-hardware demonstration of model-independent adaptive tuning of noisy systems with arbitrary phase drift

    SciTech Connect (OSTI)

    Scheinker, Alexander [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Baily, Scott [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Young, Daniel [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Kolski, Jeffrey S. [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Prokop, Mark [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

    2014-08-01

    In this work, an implementation of a recently developed model-independent adaptive control scheme, for tuning uncertain and time varying systems, is demonstrated on the Los Alamos linear particle accelerator. The main benefits of the algorithm are its simplicity, ability to handle an arbitrary number of components without increased complexity, and the approach is extremely robust to measurement noise, a property which is both analytically proven and demonstrated in the experiments performed. We report on the application of this algorithm for simultaneous tuning of two buncher radio frequency (RF) cavities, in order to maximize beam acceptance into the accelerating electromagnetic field cavities of the machine, with the tuning based only on a noisy measurement of the surviving beam current downstream from the two bunching cavities. The algorithm automatically responds to arbitrary phase shift of the cavity phases, automatically re-tuning the cavity settings and maximizing beam acceptance. Because it is model independent it can be utilized for continuous adaptation to time-variation of a large system, such as due to thermal drift, or damage to components, in which the remaining, functional components would be automatically re-tuned to compensate for the failing ones. We start by discussing the general model-independent adaptive scheme and how it may be digitally applied to a large class of multi-parameter uncertain systems, and then present our experimental results.

  20. In-hardware demonstration of model-independent adaptive tuning of noisy systems with arbitrary phase drift

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Scheinker, Alexander; Baily, Scott; Young, Daniel; Kolski, Jeffrey S.; Prokop, Mark

    2014-08-01

    In this work, an implementation of a recently developed model-independent adaptive control scheme, for tuning uncertain and time varying systems, is demonstrated on the Los Alamos linear particle accelerator. The main benefits of the algorithm are its simplicity, ability to handle an arbitrary number of components without increased complexity, and the approach is extremely robust to measurement noise, a property which is both analytically proven and demonstrated in the experiments performed. We report on the application of this algorithm for simultaneous tuning of two buncher radio frequency (RF) cavities, in order to maximize beam acceptance into the accelerating electromagnetic fieldmore »cavities of the machine, with the tuning based only on a noisy measurement of the surviving beam current downstream from the two bunching cavities. The algorithm automatically responds to arbitrary phase shift of the cavity phases, automatically re-tuning the cavity settings and maximizing beam acceptance. Because it is model independent it can be utilized for continuous adaptation to time-variation of a large system, such as due to thermal drift, or damage to components, in which the remaining, functional components would be automatically re-tuned to compensate for the failing ones. We start by discussing the general model-independent adaptive scheme and how it may be digitally applied to a large class of multi-parameter uncertain systems, and then present our experimental results.« less

  1. Automated manual transmission controller

    DOE Patents [OSTI]

    Lawrie, Robert E. (Whitmore Lake, MI); Reed, Jr., Richard G. (Royal Oak, MI); Bernier, David R. (Rochester Hills, MI)

    1999-12-28

    A powertrain system for a hybrid vehicle. The hybrid vehicle includes a heat engine, such as a diesel engine, and an electric machine, which operates as both an electric motor and an alternator, to power the vehicle. The hybrid vehicle also includes a manual-style transmission configured to operate as an automatic transmission from the perspective of the driver. The engine and the electric machine drive an input shaft which in turn drives an output shaft of the transmission. In addition to driving the transmission, the electric machine regulates the speed of the input shaft in order to synchronize the input shaft during either an upshift or downshift of the transmission by either decreasing or increasing the speed of the input shaft. When decreasing the speed of the input shaft, the electric motor functions as an alternator to produce electrical energy which may be stored by a storage device. Operation of the transmission is controlled by a transmission controller which receives input signals and generates output signals to control shift and clutch motors to effect smooth launch, upshift shifts, and downshifts of the transmission, so that the transmission functions substantially as an automatic transmission from the perspective of the driver, while internally substantially functioning as a manual transmission.

  2. Wireless Video Transmission with Over-the-Air Packet Mixing

    E-Print Network [OSTI]

    Argyriou, Antonios

    2012-01-01

    In this paper, we propose a system for wireless video transmission with a wireless physical layer (PHY) that supports cooperative forwarding of interfered/superimposed packets. Our system model considers multiple and independent unicast transmissions between network nodes while a number of them serve as relays of the interfered/superimposed signals. For this new PHY the average transmission rate that each node can achieve is estimated first. Next, we formulate a utility optimization framework for the video transmission problem and we show that it can be simplified due to the features of the new PHY. Simulation results reveal the system operating regions for which superimposing wireless packets is a better choice than a typical cooperative PHY.

  3. SUBMITTED TO IEEE TRANSACTIONS ON POWER SYSTEMS, FEBRUARY 2002 1 Quantifying Transmission Reliability Margin

    E-Print Network [OSTI]

    small enough to permit accurate Monte-Carlo simulations. The formula contributes to more accurate congestion contracts. In both planning and operations, transmission capability can be used to assess power centers-small firms collaborative R&D ini- tiative grant EEC-9815325 and grant ECS-9988574 is gratefully

  4. IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 19, NO. 2, MAY 2004 889 Congestion Management and Transmission Rights in

    E-Print Network [OSTI]

    Dixon, Juan

    and Transmission Rights in Centralized Electric Markets Roberto Méndez and Hugh Rudnick, Fellow, IEEE Abstract implementation unattractive. Index Terms--Congestion management, electric markets, nodal pricing, transmission by congestions in transmission lines. These rights can have physical or financial attributes

  5. IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 22, NO. 4, NOVEMBER 2007 1563 Transmission-Constrained Residual Demand

    E-Print Network [OSTI]

    Baldick, Ross

    . However, in an electricity market, the market is embedded in a transmission network. When, electricity market, residual demand, supply function equilibrium, transmission constraint. I. INTRODUCTION important issues comes from the special nature of electricity transmission networks [1]. Although numerical

  6. Inexpensive, energy-efficient, grid-independent storage and cooling system for the Developing World

    E-Print Network [OSTI]

    Klatt, Erik O. (Erik Oscar)

    2015-01-01

    Hunger and malnutrition can be significantly reduced in developing nations by improving the farmer-to-consumer system. One important step in particular that can be improved is cold storage at the local level. If small, ...

  7. Planning and processing of new or upgraded electric transmission systems in New Mexico

    SciTech Connect (OSTI)

    Toole, Gasper Loren [Los Alamos National Laboratory

    2009-01-01

    RETA has been requested to identify and prioritize renewable energy resource zones in New Mexico that have a potential to support industry development among renewable energy developers for renewable resource generation projects. Moreover, Senate Memorial 44 requests that RETA identify and prioritize the best viable options for potential transmission corridors to accommodate renewable energy export from New Mexico in accordance with a defined time-line and to convene a working group to submit recommendations to the legislature for establishing a process to streamline procedures for establishing renewable energy transmission projects in New Mexico. RETA's July 9, 2009 request for comments outlined seven topical areas of specific value to Senate Memorial 44. This document addresses Topics 1, 3 and 4.

  8. Allocating Transmission to Mitigate Market Power in Electricity Markets

    E-Print Network [OSTI]

    Gilbert, Richard; Neuhoff, Karsten; Newberry, David

    2002-01-01

    A. In Europe most electricity transmission auctions areare possible on every electricity transmission link in thepassive transmission rights in congested electricity systems

  9. A monolithic polarization-independent frequency-filter system for filtering of photon pairs

    SciTech Connect (OSTI)

    Ahlrichs, Andreas; Berkemeier, Christoph; Sprenger, Benjamin; Benson, Oliver [Institute of Physics, Humboldt-Universität zu Berlin, Newtonstrasse 15, D-12489 Berlin (Germany)] [Institute of Physics, Humboldt-Universität zu Berlin, Newtonstrasse 15, D-12489 Berlin (Germany)

    2013-12-09

    We set up a long-term stable filtering system that consists of cascaded monolithic Fabry-Pérot filters to enhance the suppression and free spectral range. An effective free spectral range of hundreds of GHz allows the system to be used as a high resolution monochromator, with a linewidth of 192 MHz. As an important application a single mode is filtered from photon pairs generated by a parametric down-conversion source, and their indistinguishability is proven by measuring the Hong-Ou-Mandel effect with a visibility of 96%. We report that undesired birefringence, which is often encountered with monolithic cavities, can be avoided by stress-free mounting.

  10. Prorenin induces ERK activation in endothelial cells to enhance neovascularization independently of the renin-angiotensin system

    SciTech Connect (OSTI)

    Uraoka, Maki [Department of Cardiovascular Medicine, Kyoto Prefectural University School of Medicine, 465 Kajii, Kawaramachi-Hirokoji, Kamigyo, Kyoto 602-8566 (Japan)] [Department of Cardiovascular Medicine, Kyoto Prefectural University School of Medicine, 465 Kajii, Kawaramachi-Hirokoji, Kamigyo, Kyoto 602-8566 (Japan); Ikeda, Koji, E-mail: ikedak@koto.kpu-m.ac.jp [Department of Cardiovascular Medicine, Kyoto Prefectural University School of Medicine, 465 Kajii, Kawaramachi-Hirokoji, Kamigyo, Kyoto 602-8566 (Japan)] [Department of Cardiovascular Medicine, Kyoto Prefectural University School of Medicine, 465 Kajii, Kawaramachi-Hirokoji, Kamigyo, Kyoto 602-8566 (Japan); Nakagawa, Yusuke; Koide, Masahiro; Akakabe, Yoshiki; Nakano-Kurimoto, Ritsuko; Takahashi, Tomosaburo; Matoba, Satoaki; Yamada, Hiroyuki; Okigaki, Mitsuhiko; Matsubara, Hiroaki [Department of Cardiovascular Medicine, Kyoto Prefectural University School of Medicine, 465 Kajii, Kawaramachi-Hirokoji, Kamigyo, Kyoto 602-8566 (Japan)] [Department of Cardiovascular Medicine, Kyoto Prefectural University School of Medicine, 465 Kajii, Kawaramachi-Hirokoji, Kamigyo, Kyoto 602-8566 (Japan)

    2009-12-25

    Prorenin is an enzymatically inactive precursor of renin, and its biological function in endothelial cells (ECs) is unknown despite its relevance with the incidence of diabetic microvascular complications. Recently, (pro)renin receptor was identified, and the receptor-associated prorenin system has been discovered, whereas its expression as well as function in ECs remain unclear. In the present study, we found that ECs express the (pro)renin receptor, and that prorenin provoked ERK activation through (pro)renin receptor independently of the renin-angiotensin system (RAS). Prorenin stimulated the proliferation, migration and tube-formation of ECs, while it inhibited endothelial apoptosis induced by serum and growth factor depletion. MEK inhibitor abrogated these proangiogenic effects of prorenin, while AT1 receptor antagonist or angiotensin-converting enzyme inhibitor failed to block them. In vivo neovascularization in the Matrigel-plugs implanted into mouse flanks was significantly enhanced by prorenin, in which significant ERK activation was detected in ECs. Furthermore, tumor xenografts stably transfected with prorenin demonstrated the significantly accelerated growth rate concomitantly with enhanced intratumoral neovascularization. Our data demonstrated that the RAS-independent (pro)renin receptor-mediated signal transduction plays a pivotal role in the regulation of ECs function as well as in the neovascularization, and thus prorenin is potentially involved in the pathophysiology of diabetic microvascular complications as well as cancers.

  11. Enhanced Geothermal Systems (EGS) comparing water with CO2 as heat transmission fluids

    E-Print Network [OSTI]

    Pruess, Karsten

    2007-01-01

    with the Development of Enhanced Geothermal Systems? , paper2004. Pruess, K. Enhanced Geothermal Systems (EGS) Using CO2Behavior of Enhanced Geothermal Systems with CO 2 as Working

  12. Opportunities for Efficiency Improvements in the U.S. Electricity Transmission and Distribution System

    SciTech Connect (OSTI)

    Jackson, Roderick K.; Onar, Omer C.; Kirkham, Harold; Fisher, Emily; Burkes, Klaehn; Starke, Michael R.; Mohammed, Olama; Weeks, George

    2015-04-01

    Since 2000, more than 172 quads of electricity have been transmitted on the US transmission and distribution (T&D) grid. Given this significant amount of energy flow, establishing and maintaining an efficient T&D grid is paramount. As shown in the figure below, the total percentage of overall losses in the US electric grid is approximately 6% (5.12% in 2012) (30% lower than the world average since 2000). While these efficiency losses appear to be relatively small from a percentage perspective, the total estimated electricity loss during this time is 10.8 quads.

  13. Overhead electric power transmission line jumpering system for bundles of five or more subconductors

    DOE Patents [OSTI]

    Winkelman, Paul F. (Beaverton, OR)

    1982-01-01

    Jumpering of electric power transmission lines at a dead end tower. Two transmission line conductor bundles each contain five or more spaced apart subconductors (5) arranged in the shape of a cylinder having a circular cross section. The ends of each bundle of subconductors are attached with insulators to a dead end tower (1). Jumpering allows the electric current to flow between the two bundles of subconductors using jumper buses, internal jumper conductors, and external jumper conductors. One or more current collecting jumper buses (37) are located inside each bundle of subconductors with each jumper bus being attached to the end of a subconductor. Small-diameter internal jumper conductors (33) are located in the inherently electrically shielded area inside each bundle of subconductors with each subconductor (except ones having an attached jumper bus) having one internal jumper conductor connected between that subconductor's end and a jumper bus. Large-diameter external jumper conductors (9) are located outside each bundle of subconductors with one or more external jumper conductors being connected between the jumper buses in one bundle of subconductors and the jumper buses in the other bundle.

  14. Enhanced Geothermal Systems (EGS) comparing water with CO2 as heat transmission fluids

    E-Print Network [OSTI]

    Pruess, Karsten

    2007-01-01

    of Enhanced Geothermal Systems? , paper presented at ThirdPruess, K. Enhanced Geothermal Systems (EGS) Using CO2 asBehavior of Enhanced Geothermal Systems with CO 2 as Working

  15. Time-evolution of quantum systems via a complex nonlinear Riccati equation. I. Conservative systems with time-independent Hamiltonian

    E-Print Network [OSTI]

    Hans Cruz; Dieter Schuch; Octavio Castaños; Oscar Rosas-Ortiz

    2015-05-11

    The sensitivity of the evolution of quantum uncertainties to the choice of the initial conditions is shown via a complex nonlinear Riccati equation leading to a reformulation of quantum dynamics. This sensitivity is demonstrated for systems with exact analytic solutions with the form of Gaussian wave packets. In particular, one-dimensional conservative systems with at most quadratic Hamiltonians are studied.

  16. 1406 IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 22, NO. 4, NOVEMBER 2007 Market-Based Coordination of Transmission

    E-Print Network [OSTI]

    Fu, Yong

    with competitive generation capacity planning in electricity markets. The purpose of the model is a holistic, competitive electricity markets, generation capacity planning, Lagrangian relaxation, merchant transmission simulation of generation and transmission capacity expansion in the market environment. The solution

  17. An Annotated Bibliography of High-Voltage Direct-Current Transmission and Flexible AC Transmission (FACTS) Devices, 1991-1993.

    SciTech Connect (OSTI)

    Litzenberger, Wayne; Lava, Val

    1994-08-01

    References are contained for HVDC systems, converter stations and components, overhead transmission lines, cable transmission, system design and operations, simulation of high voltage direct current systems, high-voltage direct current installations, and flexible AC transmission system (FACTS).

  18. Design of a wireless power transmission system for sensors in a household environment

    E-Print Network [OSTI]

    Zaini, Hesham Marwan

    2015-01-01

    Application of computing and communication systems towards monitoring physical devices enables the Industrial Internet, a smart system of sensors integrated within physical objects. A major challenge associated with designing ...

  19. 1394 IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 22, NO. 4, NOVEMBER 2007 Economic Criteria for Planning Transmission

    E-Print Network [OSTI]

    Oren, Shmuel S.

    for Planning Transmission Investment in Restructured Electricity Markets Enzo E. Sauma, Member, IEEE. In reality, however, since the impacts of an electricity transmission project on different players may vary that should be considered when planning electricity transmission investments. We propose an electricity

  20. Independent Analysis of Real-Time, Measured Performance Data From Microcogenerative Fuel Cell Systems Installed in Buildings

    SciTech Connect (OSTI)

    Dillon, Heather E.; Colella, Whitney G.

    2015-06-01

    Pacific Northwest National Laboratory (PNNL) is working with industry to independently monitor up to 15 distinct 5 kW-electric (kWe) combined heat and power (CHP) high temperature (HT) proton exchange membrane (PEM) fuel cell systems (FCSs) installed in light commercial buildings. This research paper discusses an evaluation of the first six months of measured performance data acquired at a 1 s sampling rate from real-time monitoring equipment attached to the FCSs at building sites. Engineering performance parameters are independently evaluated. Based on an analysis of the first few months of measured operating data, FCS performance is consistent with manufacturer-stated performance. Initial data indicate that the FCSs have relatively stable performance and a long-term average production of about 4.57 kWe of power. This value is consistent with, but slightly below, the manufacturer's stated rated electric power output of 5 kWe. The measured system net electric efficiency has averaged 33.7%, based on the higher heating value (HHV) of natural gas fuel. This value, also, is consistent with, but slightly below, the manufacturer's stated rated electric efficiency of 36%. The FCSs provide low-grade hot water to the building at a measured average temperature of about 48.4 degrees C, lower than the manufacturer's stated maximum hot water delivery temperature of 65 degrees C. The uptime of the systems is also evaluated. System availability can be defined as the quotient of total operating time compared to time since commissioning. The average values for system availability vary between 96.1 and 97.3%, depending on the FCS evaluated in the field. Performance at rated value for electrical efficiency (PRVeff) can be defined as the quotient of the system time operating at or above the rated electric efficiency and the time since commissioning. The PRVeff varies between 5.6% and 31.6%, depending on the FCS field unit evaluated. Performance at rated value for electrical power (PRVp) can be defined as the quotient of the system time operating at or above the rated electric power and the time since commissioning. PRVp varies between 6.5% and 16.2%. Performance at rated value for electrical efficiency and power (PRVt) can be defined as the quotient of the system time operating at or above both the rated electric efficiency and the electric power output compared to the time since commissioning. PRVt varies between 0.2% and 1.4%. Optimization to determine the manufacturer rating required to achieve PRVt greater than 80% has been performed based on the collected data. For example, for FCS Unit 130 to achieve a PRVt of 95%, it would have to be down-rated to an electrical power output of 3.2 kWe and an electrical efficiency of 29%. The use of PRV as an assessment metric for FCSs has been developed and reported for the first time in this paper. For FCS Unit 130, a maximum decline in electric power output of approximately 18% was observed over a 500 h period in Jan. 2012.

  1. Experimental Study in Energy Performance of Temperature and Humidity Independent Control System with Multiple Split Air-Conditioning System 

    E-Print Network [OSTI]

    Kawano,M.

    2014-01-01

    ? [k W h] E le ct ri c p o w e r co n su m p ti o n ? kW h /y e a r? 12,000 10,0 8,0 6,0 4,0 2,0 0 Outdoor air-conditioning unit Indoor unit Outdoor unit A Humidity Control unit Indoor unit Outdoor unit Outdoor air-conditioning unit A Humidity... Control unit Indoor unit Outdoor unit Developed system onventional system E le ct ri c p o w e r co n su m p ti o n ? kW h /m o n th ? 1,400 1,200 1,000 800 600 400 200 0 E le ct ri c p o w e r co n su m p ti o n ? kW h /m o n th ? 1,400 1,200 1,000 800...

  2. Bonneville Power Administration Transmission System Vegetation Management Program - Final Environmental Impact Statement

    SciTech Connect (OSTI)

    N /A

    2000-06-23

    Bonneville is responsible for maintaining a network of 24,000 kilometers (km) or 15,000 miles (mi.) of electric transmission lines and 350 substations in a region of diverse vegetation. This vegetation can interfere with electric power flow, pose safety problems for us and the public, and interfere with our ability to maintain these facilities. We need to (1) keep vegetation away from our electric facilities; (2) increase our program efficiency and consistency; (3) review herbicide use (under increased public scrutiny); and (4) maximize the range of tools we can use while minimizing environmental impact (Integrated Vegetation Management). This Final Environmental Impact Statement (FEIS) establishes Planning Steps for managing vegetation for specific projects (to be tiered to this Environmental Impact Statement (EIS)). In addition to No Action (current practice), alternatives are presented for Rights-of-way, Electric Yards, and Non-electric Facilities (landscaping, work yards). Four vegetation control methods are analyzed manual, mechanical, herbicide, and biological. Also evaluated are 23 herbicide active ingredients and 4 herbicide application techniques (spot, localized, broadcast, and aerial). For rights-of-way, we consider three sets of alternatives: alternative management approaches (time-driven or establishing low-growing plant communities); alternative method packages; and, if herbicides are in a methods package, alternative vegetation selections (noxious weeds, deciduous, or any vegetation). For electric yards, one herbicide-use alternative is considered. For non-electric facilities, two method package alternatives are considered. For rights-of-way, the environmentally preferred alternative(s) would use manual, mechanical, and biological control methods, as well as spot and localized herbicide applications for noxious and deciduous plant species; the BPA-preferred alternative(s) would add broadcast and aerial herbicide applications, and would use herbicides on any vegetation. Both would favor a management approach that fosters low-growing plant communities.

  3. Transmission Workshop | Department of Energy

    Energy Savers [EERE]

    which addressed the challenges and opportunities presented by the integration of 21st century energy technologies into the electricity transmission system. Parallel sessions...

  4. Feasibility of gate-turnoff thyristors in a high-voltage direct-current transmission system: Final report

    SciTech Connect (OSTI)

    McMurray, W.

    1987-08-01

    This study to identify potentially attractive applications for gate-turnoff thyristor (GTO) converters in utility systems includes both high-voltage direct-current (HVDC) valves and static volt-ampere reactive (VAR) controllers. The work includes a broad review of basic principles and the power circuit arrangements that are judged to be most attractive. The major differences between ordinary thyristors and GTO converters are discussed, including alternative HVDC transmission systems and static VAR controllers that are possible with GTOs. Whereas a current-source type of converter is the obvious choice with ordinary thyristors, the use of GTOs allows either current-source or voltage-source converters to be considered. A computer-aided analysis of the basic 6-pulse GTO current-source converter system is presented, including general equations for steady-state operation and plotting calculated waveforms. An analysis of a GTO voltage-source converter is given in less detail. Due to incomplete performance data, unresolved critical problems such as protection, and the disadvantages of higher cost, complexity and losses, it is difficult to recommend a specific GTO converter system at this time. The major advantage that GTO converters can offer is rapid and smoothly continuous control of reactive power. Further development of GTO converters should be aimed towards an application where reactive power control is very important and not readily achievable by conventional methods. 12 refs., 47 figs.

  5. DC powerline communication system using a transmission line transformer for high degree of freedom applications

    E-Print Network [OSTI]

    Wade, Eric R. (Eric Randolph), 1978-

    2004-01-01

    A new type of powerline communication is developed to reduce cable requirements for robotic, electromechanical, and vehicular systems. A DC power bus line connecting a DC power supply to motor drives and sensor units is ...

  6. DAMAGE DETECTION STRATEGIES IN STRUCTURAL HEALTH MONITORING OF OVERHEAD POWER TRANSMISSION SYSTEM

    E-Print Network [OSTI]

    Boyer, Edmond

    " refers to the low voltage part of T&D System that connects substations and consumers' switchgear boxes or underground), insulators, vibration dampers (e.g. Stockbridge type), switchgears and transformers. Due

  7. Improving Electricity Resource-Planning Processes by Considering the Strategic Benefits of Transmission

    E-Print Network [OSTI]

    Budhraja, Vikram

    2010-01-01

    Upgrading California’s Electric Transmission System: Issuesshould be adapted to transmission electric system planning,Mobasheri, (Electric Power Group, LLC). 2008. Transmission

  8. Dynamical Study of a Second Order DPCM Transmission System Modeled by a Piece-Wise Linear Function

    E-Print Network [OSTI]

    Ina Taralova; D. Fournier-Prunaret

    2009-03-30

    This paper analyses the behaviour of a second order DPCM (Differential Pulse Code Modulation) transmission system when the nonlinear characteristic of the quantizer is taken into consideration. In this way, qualitatively new properties of the DPCM system have been unravelled, which cannot be observed and explained if the nonlinearity of the quantizer is neglected. For the purposes of this study, a piece-wise linear nondifferentiable quantizer characteristic is considered. The resulting model of the DPCM is of the form of iteration equations (i.e. map), where the inverse iterate is not unique (i.e. noninvertible map). Therefore the mathematical theory of noninvertible maps is particularly suitable for this analysis, together with the more classic tools of Non Linear Dynamics. This study allowed us in addition to show from a theoretical point of view some new properties of nondifferentiable maps, in comparison with differentiable ones. After a short review of noninvertible maps, the presented methods and tools for noninvertible maps are applied to the DPCM system. An original algorithm for calculation of bifurcation curves for the DPCM map is proposed. Via the studies in the parameter and phase plane, different nonlinear phenomena such as the overlapping of bifurcation curves causing multistability, chaotic behaviour, or multiple basins with fractal boundary are pointed out. All observed phenomena show a very complex dynamical behaviour even in the constant input signal case, discussed here.

  9. Alternative Economic Criteria and Proactive Planning for Transmission Investment in Deregulated Power Systems

    E-Print Network [OSTI]

    Oren, Shmuel S.

    the maximization of social welfare can be insufficient to achieve Pareto efficiency in deregulated electric systems as a whole is socially justifiable on the grounds of reliability improvements and energy cost savings cost minimization including energy cost investment cost and cost of lost load or other measure

  10. Comments by the American Electric Power System on Proposed Coordination of Federal Authorizations for Electric Transmission Facilities

    Office of Energy Efficiency and Renewable Energy (EERE)

     Proposed Coordination of Federal Authorizations for Electric Transmission Facilities – Interim Final Rule and Proposed Rule (DOE, 10 CR Part 900): The utility operating companies of the American...

  11. Integrating Renewable Energy into the Transmission and Distribution...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Integrating Renewable Energy into the Transmission and Distribution System of the U.S. Virgin Islands Integrating Renewable Energy into the Transmission and Distribution System of...

  12. Coordination of Transmission Line Transfer Capabilities

    E-Print Network [OSTI]

    Coordination of Transmission Line Transfer Capabilities Final Project Report Power Systems since 1996 PSERC #12;Power Systems Engineering Research Center Coordination of Transmission Line Industry Representative Richard Goddard Portland General Electric Research Team Students Yuan Li Yonghong

  13. Lessons from Iowa : development of a 270 megawatt compressed air energy storage project in midwest Independent System Operator : a study for the DOE Energy Storage Systems Program.

    SciTech Connect (OSTI)

    Holst, Kent; Huff, Georgianne; Schulte, Robert H.; Critelli, Nicholas

    2012-01-01

    The Iowa Stored Energy Park was an innovative, 270 Megawatt, $400 million compressed air energy storage (CAES) project proposed for in-service near Des Moines, Iowa, in 2015. After eight years in development the project was terminated because of site geological limitations. However, much was learned in the development process regarding what it takes to do a utility-scale, bulk energy storage facility and coordinate it with regional renewable wind energy resources in an Independent System Operator (ISO) marketplace. Lessons include the costs and long-term economics of a CAES facility compared to conventional natural gas-fired generation alternatives; market, legislative, and contract issues related to enabling energy storage in an ISO market; the importance of due diligence in project management; and community relations and marketing for siting of large energy projects. Although many of the lessons relate to CAES applications in particular, most of the lessons learned are independent of site location or geology, or even the particular energy storage technology involved.

  14. THE EFFECT OF RECEIVER DIVERSITY COMBINING ON OPTIMUM ENERGY ALLOCATION AND ENERGY EFFICIENCY OF COOPERATIVE WIRELESS TRANSMISSION SYSTEMS

    E-Print Network [OSTI]

    Brown III, Donald R.

    considers the problem of how to ef ciently allocate transmission energy in a cooperative wireless technique affects both the optimum energy allocation and the overall energy ef ciency of the cooperative the most ef cient strategy, cooperative transmission with EGC tends to be more energy ef cient than direct

  15. Marine High Voltage Power Conditioning and Transmission System with Integrated Storage DE-EE0003640 Final Report

    SciTech Connect (OSTI)

    Frank Hoffmann, PhD; Aspinall, Rik

    2012-12-10

    Design, Development, and test of the three-port power converter for marine hydrokinetic power transmission. Converter provides ports for AC/DC conversion of hydrokinetic power, battery storage, and a low voltage to high voltage DC port for HVDC transmission to shore. The report covers the design, development, implementation, and testing of a prototype built by PPS.

  16. Tank waste remediation system retrieval and disposal mission readiness-to-proceed responses to internal independent assessment

    SciTech Connect (OSTI)

    Schaus, P.S.

    1998-01-06

    The US Department of Energy (DOE) is planning to make critical decisions during fiscal year (FY) 1998 regarding privatization contracts for the treatment of Hanford tank waste. Specifically, DOE, Richland Operations Office (RL), will make decisions related to proceeding with Phase 1 Privatization. In support of these decisions, the management and integration (M+I) contractor must be able to meet the requirements to support the Phase 1 privatization contractors. As part of the assessment of the Tank Waste Retrieval (TWR) Readiness-To-Proceed (RTP), an independent review of their process and products was required by the RL letter of August 8, 1997. The Independent Review Team reviewed the adequacy of the planning that has been done by the M+I contractor to validate that, if the plans are carried out, there is reasonable assurance of success. Overall, the RTP Independent Review Team concluded that, if the planning by the M+I contractor team is carried out with adequate funding, there is reasonable assurance that the M+I contractor will be able to deliver waste to the privatization contractor for the duration of Phase 1. This conclusion was based on addressing the recommendations contained in the Independent Review Team`s Final Report and in the individual Criteria and Review Approach (CRA) forms completed during the assessment. The purpose of this report is to formally document the independent assessment and the RTP team responses to the Independent Review Team recommendations. It also provides closure logics for selected recommendations from a Lockheed Martin Hanford Corporation (LMHC) internal assessment of the Technical Basis Review (TBR) packages. This report contains the RTP recommendation closure process (Section 2.0); the closure tables (Section 3.0) which provide traceability between each review team recommendation and its corresponding Project Hanford Management Contract closure logic; and two attachments that formally document the Independent Review Team Final Report and the Internal Assessment Final Report.

  17. Transmission Services

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Transmission Services BPA Clarifications on the DSO216 1 Document updated on 2242015 at 3:29:25 PM B O N N E V I L L E P O W E R A D M I N I S T R A T I O N BPA Clarifications on...

  18. Automated manual transmission clutch controller

    DOE Patents [OSTI]

    Lawrie, Robert E. (9375 Kearney Rd., Whitmore Lake, MI 48189); Reed, Jr., Richard G. (3003 Bembridge, Royal Oak, MI 48073); Rausen, David J. (519 S. Gaylord St., Denver, CO 80209)

    1999-11-30

    A powertrain system for a hybrid vehicle. The hybrid vehicle includes a heat engine, such as a diesel engine, and an electric machine, which operates as both an electric motor and an alternator, to power the vehicle. The hybrid vehicle also includes a manual-style transmission configured to operate as an automatic transmission from the perspective of the driver. The engine and the electric machine drive an input shaft which in turn drives an output shaft of the transmission. In addition to driving the transmission, the electric machine regulates the speed of the input shaft in order to synchronize the input shaft during either an upshift or downshift of the transmission by either decreasing or increasing the speed of the input shaft. When decreasing the speed of the input shaft, the electric motor functions as an alternator to produce electrical energy which may be stored by a storage device. Operation of the transmission is controlled by a transmission controller which receives input signals and generates output signals to control shift and clutch motors to effect smooth launch, upshift shifts, and downshifts of the transmission, so that the transmission functions substantially as an automatic transmission from the perspective of the driver, while internally substantially functioning as a manual transmission.

  19. California's electricity system of the future scenario analysis in support of public-interest transmission system R&D planning

    E-Print Network [OSTI]

    Eto, Joseph; Stovall, John P.

    2003-01-01

    energy cost/value; and electricity system reliability, quality, and sufficiency are all CaliforniaCalifornia to increase energy self-sufficiency and reliability Greater Regional Coordination Maturing regional processes for equitable sharing of cost and

  20. HVDC power transmission technology assessment

    SciTech Connect (OSTI)

    Hauth, R.L.; Tatro, P.J.; Railing, B.D.; Johnson, B.K.; Stewart, J.R.; Fink, J.L.

    1997-04-01

    The purpose of this study was to develop an assessment of the national utility system`s needs for electric transmission during the period 1995-2020 that could be met by future reduced-cost HVDC systems. The assessment was to include an economic evaluation of HVDC as a means for meeting those needs as well as a comparison with competing technologies such as ac transmission with and without Flexible AC Transmission System (FACTS) controllers. The role of force commutated dc converters was to be assumed where appropriate. The assessment begins by identifying the general needs for transmission in the U.S. in the context of a future deregulated power industry. The possible roles for direct current transmission are then postulated in terms of representative scenarios. A few of the scenarios are illustrated with the help of actual U.S. system examples. non-traditional applications as well as traditional applications such as long lines and asynchronous interconnections are discussed. The classical ``break-even distance`` concept for comparing HVDC and ac lines is used to assess the selected scenarios. The impact of reduced-cost converters is reflected in terms of the break-even distance. This report presents a comprehensive review of the functional benefits of HVDC transmission and updated cost data for both ac and dc system components. It also provides some provocative thoughts on how direct current transmission might be applied to better utilize and expand our nation`s increasingly stressed transmission assets.

  1. Independent technical review, handbook

    SciTech Connect (OSTI)

    Not Available

    1994-02-01

    Purpose Provide an independent engineering review of the major projects being funded by the Department of Energy, Office of Environmental Restoration and Waste Management. The independent engineering review will address questions of whether the engineering practice is sufficiently developed to a point where a major project can be executed without significant technical problems. The independent review will focus on questions related to: (1) Adequacy of development of the technical base of understanding; (2) Status of development and availability of technology among the various alternatives; (3) Status and availability of the industrial infrastructure to support project design, equipment fabrication, facility construction, and process and program/project operation; (4) Adequacy of the design effort to provide a sound foundation to support execution of project; (5) Ability of the organization to fully integrate the system, and direct, manage, and control the execution of a complex major project.

  2. Electric Transmission System Workshop

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n cEnergy (AZ,Local Government NonprofitPrepared for Western Senior

  3. Exploration of Resource and Transmission Expansion Decisions in the Western Renewable Energy Zone Initiative

    E-Print Network [OSTI]

    Mills, Andrew

    2010-01-01

    physics of electricity flow in transmission networks. Thefact that the electricity lost through transmission lines isthe resulting electricity to the nearest transmission system

  4. A Survey of National Transmission Grid Modeling Capabilities at DOE

    E-Print Network [OSTI]

    Howle, Victoria E.

    711712003 A Survey of National Transmission Grid Modeling Capabilities at DOE Laboratories Steve Data Sheets.................................................................... 9 Electricity Market Complex Adaptive Systems (EMCAS)..................10 Generation and Transmission Maximization (GTMAX

  5. Electrical transmission line diametrical retainer

    DOE Patents [OSTI]

    Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT); Pixton, David (Lehi, UT); Dahlgren, Scott (Provo, UT); Sneddon, Cameron (Provo, UT); Briscoe, Michael (Lehi, UT); Fox, Joe (Spanish Fork, UT)

    2004-12-14

    The invention is a mechanism for retaining an electrical transmission line. In one embodiment of the invention it is a system for retaining an electrical transmission line within down hole components. In accordance with one aspect of the invention, the system includes a plurality of downhole components, such as sections of pipe in a drill string. The system also includes a coaxial cable running between the first and second end of a drill pipe, the coaxial cable having a conductive tube and a conductive core within it. The invention allows the electrical transmission line to with stand the tension and compression of drill pipe during routine drilling cycles.

  6. IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, VOL. 58, NO. 3, MARCH 2009 1229 Energy-Efficient Video Transmission

    E-Print Network [OSTI]

    Reisslein, Martin

    transmission (CBEVT). Our simulations indicate that energy savings of up to 85% is achievable in the radio achieve energy savings of up to 38% for a six-user CDMA system with an independent 16-MB buffer for every schemes that ensure the timely delivery of the video frames while saving energy. Manuscript received

  7. Stumbling Toward Capitalism: The State, Global Production Networks, and the Unexpected Emergence of China's Independent Auto Industry

    E-Print Network [OSTI]

    Chang, Crystal Whai-ku

    2011-01-01

    To overcome the electricity transmission bottleneck, Chinato extend its UHV electricity transmission system. 220 Yetof the country‘s electricity transmission and distribution,

  8. Enhanced geothermal systems (EGS) with CO2 as heat transmission fluid--A scheme for combining recovery of renewable energy with geologic storage of CO2

    E-Print Network [OSTI]

    Pruess, K.

    2010-01-01

    Supercritical CO 2 as Heat Transmission Fluid in the EGSof Using Supercritical CO2 as Heat Transmission Fluid in anEGS) with CO 2 as Heat Transmission Fluid - A Scheme for

  9. July 2, 2007 1 Optimal Transmission Switching

    E-Print Network [OSTI]

    Mangasarian, Olvi L.

    . INTRODUCTION n large electric networks, transmission is traditionally characterized as a static systemJuly 2, 2007 1 Optimal Transmission Switching Emily Bartholomew Fisher, Student Member, IEEE an optimal generation dispatch and transmission topology to meet a specific inflexible load as a mixed

  10. Western Area Power Administration combined power system financial statements, September 30, 1996 and 1995 (with independent auditors` report thereon)

    SciTech Connect (OSTI)

    NONE

    1997-04-01

    This report presents the results of the independent certified public accountants` audit of the Department of Energy`s Western Area Power Administration`s (Western) combined financial statements as of September 30, 1996. The auditors have expressed an unqualified opinion on the 1996 statements. The auditors` report on Western`s internal control structure disclosed two new reportable conditions and discussed the status of an unresolved condition from prior years. The new conditions involved the write-off of aging accounts receivable and the understatement of interest expense for inactive construction work orders. These reportable conditions are not considered to be material weaknesses. Western concurred with the audit recommendations and is responsible for necessary corrective actions. The auditors also considered the overview and performance measure data for completeness and material consistency with the basic financial statements as noted in the internal control report. The report also disclosed an additional reportable condition directed to the Bureau of Reclamation (Reclamation) which is not considered to be a material weakness. Reclamation concurred with the audit recommendation and is responsible for necessary corrective action. The auditors` report on Western`s compliance with laws and regulations disclosed two new instances of noncompliance involving interest charges on all construction costs funded with Federal appropriations and other capitalized costs. The report also discussed the status of one instance of noncompliance from prior years. Western provided concurrence and corrective action plans for all of these instances of noncompliance.

  11. Southwestern Federal Power System combined financial statements and supplemental schedules (with independent auditors` reports thereon) for the years ended September 30, 1996 and 1995

    SciTech Connect (OSTI)

    NONE

    1997-12-04

    This report presents the results of the independent certified public accountants` audit of the Southwestern Federal Power System`s (SWFPS) combined power system statement of assets, Federal investment and liabilities, and the related combined statements of revenues, expenses and accumulated net revenues, and cash flows. The 1996 financial statement audit was made under the provisions of the Inspector General Act (5 U.S.C. App.), as amended, the Government Management Reform Act (31 U.S.C. 3515), and Office of Management and Budget implementing guidance. The auditors` work was conducted in accordance with generally accepted government auditing standards. To fulfill audit responsibilities, the Office of Inspector General contracted with the independent public accounting firm of KPMG Peak Marwick LLP (KPMG) to conduct the audit for them, subject to their review. The auditors` report on SWFP`s internal control structure disclosed a reportable condition directed to the Southwestern Power Administration concerning a delay in properly classifying the value of plant assets. The report also included two reportable conditions directed to the Army Corps of Engineers regarding the inconsistent calculation of depreciation expense and the misallocation of multipurpose costs. None of these reportable conditions were considered to be material weaknesses. The auditors` report on SWFP`s compliance with laws and regulations disclosed no new instances of noncompliance by Southwestern.

  12. Independent electrons model for open quantum systems: Landauer-Buettiker formula and strict positivity of the entropy production

    E-Print Network [OSTI]

    G. Nenciu

    2006-10-26

    A general argument leading from the formula for currents through an open noninteracting mesoscopic system given by the theory of non-equilibrium steady states (NESS) to the Landauer-Buettiker formula is pointed out. Time reversal symmetry is not assumed. As a consequence it follows that, as far as the system has a nontrivial scattering theory and the reservoirs have different temperatures and/or chemical potentials, the entropy production is strictly positive.

  13. Survey of Transmission Cost Allocation Methodologies for Regional Transmission Organizations

    SciTech Connect (OSTI)

    Fink, S.; Porter, K.; Mudd, C.; Rogers, J.

    2011-02-01

    The report presents transmission cost allocation methodologies for reliability transmission projects, generation interconnection, and economic transmission projects for all Regional Transmission Organizations.

  14. Regional Transmission Projects: Finding Solutions

    SciTech Connect (OSTI)

    The Keystone Center

    2005-06-15

    The Keystone Center convened and facilitated a year-long Dialogue on "Regional Transmission Projects: Finding Solutions" to develop recommendations that will help address the difficult and contentious issues related to expansions of regional electric transmission systems that are needed for reliable and economic transmission of power within and across regions. This effort brought together a cross-section of affected stakeholders and thought leaders to address the problem with the collective wisdom of their experience and interests. Transmission owners sat at the table with consumer advocates and environmental organizations. Representatives from regional transmission organizations exchanged ideas with state and federal regulators. Generation developers explored common interests with public power suppliers. Together, the Dialogue participants developed consensus solutions about how to begin unraveling some of the more intractable issues surrounding identification of need, allocation of costs, and reaching consensus on siting issues that can frustrate the development of regional transmission infrastructure. The recommendations fall into three broad categories: 1. Recommendations on appropriate institutional arrangements and processes for achieving regional consensus on the need for new or expanded transmission infrastructure 2. Recommendations on the process for siting of transmission lines 3. Recommendations on the tools needed to support regional planning, cost allocation, and siting efforts. List of Dialogue participants: List of Dialogue Participants: American Electric Power American Transmission Company American Wind Energy Association California ISO Calpine Corporation Cinergy Edison Electric Institute Environmental Defense Federal Energy Regulatory Commission Great River Energy International Transmission Company ISO-New England Iowa Public Utility Board Kanner & Associates Midwest ISO National Association of Regulatory Utility Commissioners National Association of State Utility Consumer Advocates National Grid Northeast Utilities PA Office of Consumer Advocates Pacific Gas & Electric Corporation Pennsylvania Public Utility Commission PJM Interconnection The Electricity Consumers Resource Council U.S. Department of Energy US Department of the Interior Van Ness Feldman Western Interstate Energy Board Wind on the Wires Wisconsin Public Service Commission Xcel Energy

  15. Electric utility transmission and distribution upgrade deferral benefits from modular electricity storage : a study for the DOE Energy Storage Systems Program.

    SciTech Connect (OSTI)

    Eyer, James M.

    2009-06-01

    The work documented in this report was undertaken as part of an ongoing investigation of innovative and potentially attractive value propositions for electricity storage by the United States Department of Energy (DOE) and Sandia National Laboratories (SNL) Electricity Storage Systems (ESS) Program. This study characterizes one especially attractive value proposition for modular electricity storage (MES): electric utility transmission and distribution (T&D) upgrade deferral. The T&D deferral benefit is characterized in detail. Also presented is a generalized framework for estimating the benefit. Other important and complementary (to T&D deferral) elements of possible value propositions involving MES are also characterized.

  16. Merchant transmission investment

    E-Print Network [OSTI]

    Joskow, Paul L.

    2003-01-01

    We examine the performance attributes of a merchant transmission investment framework that relies on "market driven" transmission investment to provide the infrastructure to support competitive wholesale markets for ...

  17. Low Frequency Transmission Final Project Report

    E-Print Network [OSTI]

    Low Frequency Transmission Final Project Report Power Systems Engineering Research Center Empowering Minds to Engineer the Future Electric Energy System #12;Low Frequency Transmission Final Project This is the final report for the Power Systems Engineering Research Center (PSERC) research project S-42 titled "Low

  18. EA-343 Midwest Independent Transmission Operator (MISO) | Department of

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy A plug-inPPL EnergyPlus, LLC to export electricSilverhillSaracen EnergyRoyal Bank

  19. Response calculations based on an independent particle system with the exact one-particle density matrix: Polarizabilities

    SciTech Connect (OSTI)

    Giesbertz, K. J. H.; Gritsenko, O. V.; Pohang University of Science and Technology, Department of Chemistry, San 31, Hyojadong, Namgu, Pohang 790-784 ; Baerends, E. J.; Pohang University of Science and Technology, Department of Chemistry, San 31, Hyojadong, Namgu, Pohang 790-784; Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589

    2014-05-14

    Recently, we have demonstrated that the problems finding a suitable adiabatic approximation in time-dependent one-body reduced density matrix functional theory can be remedied by introducing an additional degree of freedom to describe the system: the phase of the natural orbitals [K. J. H. Giesbertz, O. V. Gritsenko, and E. J. Baerends, Phys. Rev. Lett. 105, 013002 (2010); K. J. H. Giesbertz, O. V. Gritsenko, and E. J. Baerends, J. Chem. Phys. 133, 174119 (2010)]. In this article we will show in detail how the frequency-dependent response equations give the proper static limit (? ? 0), including the perturbation in the chemical potential, which is required in static response theory to ensure the correct number of particles. Additionally we show results for the polarizability for H{sub 2} and compare the performance of two different two-electron functionals: the phase-including Löwdin–Shull functional and the density matrix form of the Löwdin–Shull functional.

  20. Transmission Workshop

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal Gas &SCE- Non-ResidentialAlliantPGEDepartmentfan system' % ~WORKSHOP DOUBLETREE CRYSTAL

  1. Heat transmission in Relativity

    E-Print Network [OSTI]

    A. Brotas; J. C. Fernandes

    2003-07-16

    The simultaneous study of deformation and heat transmission in a bar was ignored for about 150 years. The traditional Fourier equation just allows to study the evolution of temperature in a undeformable bar. The search for its relativistic variant is a task which must fail because in Relativity there are no undeformable bars. Rigid bodies, in the sense as rigid as possible, are deformables. In this work we show how to write in Relativity the system of equations necessary to study simultaneously deformation and temperature evolution along a rigid bar.

  2. Transmission SEAB Presentation

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal Gas &SCE- Non-ResidentialAlliantPGEDepartmentfan system' % ~ TransmissionAvailable

  3. Independent Oversight Activity Report, Hanford Waste Treatment...

    Energy Savers [EERE]

    and Immobilization Plant Low Activity Waste Facility Heating, Ventilation, and Air Conditioning Systems Hazards Analysis Activities HIAR-WTP-2014-01-27 This Independent...

  4. Independent Oversight Review, Portsmouth Gaseous Diffusion Plant...

    Office of Environmental Management (EM)

    April 2013 Independent Oversight Review, Portsmouth Gaseous Diffusion Plant - April 2013 April 2013 Review of the Integrated Safety Management System Phase I Verification Review at...

  5. Policy Issues for Retail Beamed Power Transmission

    E-Print Network [OSTI]

    electric power on Earth is transmitted using wired power transmission systems. In this system, electricalPolicy Issues for Retail Beamed Power Transmission Girish Chowdhary, Rajeev Gadre, Narayanan solar electric power using retail delivery of beamed power. Recent advances in power beaming have made

  6. Transmission Matters Now: How Will Power Market Regulations Impact the Industrial's Power Supply Costs and Reliability? 

    E-Print Network [OSTI]

    James, F.; Beidas, H.; Fox, R.

    2003-01-01

    The standardization of the power market structure and transmission access rules will result in new rules for dealing with the transmission systems. Furthermore, transmission system limitations and market inadequacies will have a significant impact...

  7. Automated manual transmission mode selection controller

    DOE Patents [OSTI]

    Lawrie, Robert E. (Whitmore Lake, MI)

    1999-11-09

    A powertrain system for a hybrid vehicle. The hybrid vehicle includes a heat engine, such as a diesel engine, and an electric machine, which operates as both an electric motor and an alternator, to power the vehicle. The hybrid vehicle also includes a manual-style transmission configured to operate as an automatic transmission from the perspective of the driver. The engine and the electric machine drive an input shaft which in turn drives an output shaft of the transmission. In addition to driving the transmission, the electric machine regulates the speed of the input shaft in order to synchronize the input shaft during either an upshift or downshift of the transmission by either decreasing or increasing the speed of the input shaft. When decreasing the speed of the input shaft, the electric motor functions as an alternator to produce electrical energy which may be stored by a storage device. Operation of the transmission is controlled by a transmission controller which receives input signals and generates output signals to control shift and clutch motors to effect smooth launch, upshift shifts, and downshifts of the transmission, so that the transmission functions substantially as an automatic transmission from the perspective of the driver, while internally substantially functioning as a manual transmission.

  8. Automated manual transmission shift sequence controller

    DOE Patents [OSTI]

    Lawrie, Robert E. (Whitmore Lake, MI); Reed, Richard G. (Royal Oak, MI); Rausen, David J. (Denver, CO)

    2000-02-01

    A powertrain system for a hybrid vehicle. The hybrid vehicle includes a heat engine, such as a diesel engine, and an electric machine, which operates as both, an electric motor and an alternator, to power the vehicle. The hybrid vehicle also includes a manual-style transmission configured to operate as an automatic transmission from the perspective of the driver. The engine and the electric machine drive an input shaft which in turn drives an output shaft of the transmission. In addition to driving the transmission, the electric machine regulates the speed of the input shaft in order to synchronize the input shaft during either an upshift or downshift of the transmission by either decreasing or increasing the speed of the input shaft. When decreasing the speed of the input shaft, the electric motor functions as an alternator to produce electrical energy which may be stored by a storage device. Operation of the transmission is controlled by a transmission controller which receives input signals and generates output signals to control shift and clutch motors to effect smooth launch, upshift shifts, and downshifts of the transmission, so that the transmission functions substantially as an automatic transmission from the perspective of the driver, while internally substantially functioning as a manual transmission.

  9. Colorado Electrical Transmission Grid

    SciTech Connect (OSTI)

    Zehner, Richard E.

    2012-02-01

    Citation Information: Originator: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Originator: Xcel Energy Publication Date: 2012 Title: Colorado XcelEnergy NonXcel Transmission Network Edition: First Publication Information: Publication Place: Earth Science & Observation Center, Cooperative Institute for Research in Environmental Science (CIRES), University of Colorado, Boulder Publisher: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Description: This layer contains transmission network of Colorado Spatial Domain: Extent: Top: 4540689.017558 m Left: 160606.141934 m Right: 758715.946645 m Bottom: 4098910.893397m Contact Information: Contact Organization: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Contact Person: Khalid Hussein Address: CIRES, Ekeley Building Earth Science & Observation Center (ESOC) 216 UCB City: Boulder State: CO Postal Code: 80309-0216 Country: USA Contact Telephone: 303-492-6782 Spatial Reference Information: Coordinate System: Universal Transverse Mercator (UTM) WGS’1984 Zone 13N False Easting: 500000.00000000 False Northing: 0.00000000 Central Meridian: -105.00000000 Scale Factor: 0.99960000 Latitude of Origin: 0.00000000 Linear Unit: Meter Datum: World Geodetic System ’1984 (WGS ’1984) Prime Meridian: Greenwich Angular Unit: Degree Digital Form: Format Name: Shapefile

  10. Laboratory and Field Experimental Studies of CO2 as Heat Transmission Fluid in Enhanced Geothermal Systems (EGS)

    Broader source: Energy.gov [DOE]

    Project objectives: obtain basic information on the performance of CO2-based EGS; and enhance and calibrate modeling capabilities for such systems.

  11. Rational Interpolation to exp(-x) with Application to Certain Stiff Systems Arieh Iserles

    E-Print Network [OSTI]

    Magnus, Alphonse P.

    copy of any part of a JSTOR transmission must contain the same copyright notice that appears on the screen or printed page of such transmission. JSTOR is an independent not-for-profit organization system ur = Ahu +f (or u,, = Ahu+f). Since the operator A is usually either linear (for a heat conduction

  12. Distributed Channel Probing for Efficient Transmission Scheduling in Wireless Networks

    E-Print Network [OSTI]

    Srikant, Rayadurgam

    to continuously estimate the channel quality before each transmission decision in opportunistic scheduling over statistics and rates, and note its tightness in the symmetric and independent ON- OFF fading scenario. We transmission decision. However, in the presence of many contending users that utilize the time-varying channel

  13. Catalysis Research for Energy Independence

    E-Print Network [OSTI]

    -conversions to significantly reduce the carbon footprint of the global energy system. We provide a fundamental understandingCatalysis Research for Energy Independence Chemical transformations are at the heart of energy production and use, and catalysis lies at the core of efficiently and effectively using our current energy

  14. Stability effects of frequency controllers and transmission line configurations on power systems with integration of wind power

    E-Print Network [OSTI]

    Abdelhalim, Hussein Mohamed

    2012-01-01

    This thesis investigates the stability effects of the integration of wind power on multi-machine power systems. First, the small-signal stability effects of turbine governors connected to synchronous generators in the ...

  15. Transmission Commercial Project Integration

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Market Generator Interconnection Reform Implementation Network Integration Transmission Service (NT Service) Network Open Season (NOS) PTSA Reform North American Energy...

  16. Load-resistant coaxial transmission line

    DOE Patents [OSTI]

    Hall, David R.; Fox, Joe

    2006-01-03

    A transmission line for downhole tools that make up all or part of a tool string for drilling and production of oil, gas, and geothermal wells that can withstand the dynamic gravitational forces and other accelerations associated with downhole excavations. The transmission line has a metal tube, or outer conductor, that houses a coaxial wire inner conductor. A non-metallic dielectric material is interposed between the inner and outer conductors. The outer and inner conductors and the dielectric are sufficiently compressed together so that independent motion between them is abated. Compression of the components of the transmission line may be achieved by drawing the transmission through one or more dies in order to draw down the outer conductor onto the dielectric, or by expanding the inner conductor against the dielectric using a mandrel or hydraulic pressure. Non-metallic bead segments may be used in aid of the compression necessary to resist the dynamic forces and accelerations of drilling.

  17. Performance Incentives for Transmission

    E-Print Network [OSTI]

    Oren, Shmuel S.

    Performance Incentives for Transmission FERC's Standard Market Design should accommodate a performance-based regulation mechanism that is designed to align the interests of transmission operators to investment, transmission investors would be entitled to the CRRs or CRR auc- tion revenues engendered

  18. Independent Oversight Program

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2011-08-30

    The order prescribes the requirements and responsibilities for the DOE Independent Oversight Program. Cancels DOE O 470.2B. Superseded by DOE O 227.1A.

  19. 1000 Independence Avenue, SW

    Energy Savers [EERE]

    office of small & disadvantaged business utilization 1000 Independence Avenue, SW Washington, DC 20585 202.586.7377 www.smallbusiness.energy.gov the department purchases a wide...

  20. Power Electronics for Distributed Energy Systems and Transmission and Distribution Applications: Assessing the Technical Needs for Utility Applications

    SciTech Connect (OSTI)

    Tolbert, L.M.

    2005-12-21

    Power electronics can provide utilities the ability to more effectively deliver power to their customers while providing increased reliability to the bulk power system. In general, power electronics is the process of using semiconductor switching devices to control and convert electrical power flow from one form to another to meet a specific need. These conversion techniques have revolutionized modern life by streamlining manufacturing processes, increasing product efficiencies, and increasing the quality of life by enhancing many modern conveniences such as computers, and they can help to improve the delivery of reliable power from utilities. This report summarizes the technical challenges associated with utilizing power electronics devices across the entire spectrum from applications to manufacturing and materials development, and it provides recommendations for research and development (R&D) needs for power electronics systems in which the U.S. Department of Energy (DOE) could make a substantial impact toward improving the reliability of the bulk power system.

  1. National Electric Transmission Congestion Study Webinars | Department...

    Energy Savers [EERE]

    Services Electricity Policy Coordination and Implementation Transmission Planning National Electric Transmission Congestion Study National Electric Transmission...

  2. Maui Smart Grid Demonstration Project Managing Distribution System Resources for Improved Service Quality and Reliability, Transmission Congestion Relief, and Grid Support Functions

    SciTech Connect (OSTI)

    none,

    2014-09-30

    The Maui Smart Grid Project (MSGP) is under the leadership of the Hawaii Natural Energy Institute (HNEI) of the University of Hawaii at Manoa. The project team includes Maui Electric Company, Ltd. (MECO), Hawaiian Electric Company, Inc. (HECO), Sentech (a division of SRA International, Inc.), Silver Spring Networks (SSN), Alstom Grid, Maui Economic Development Board (MEDB), University of Hawaii-Maui College (UHMC), and the County of Maui. MSGP was supported by the U.S. Department of Energy (DOE) under Cooperative Agreement Number DE-FC26-08NT02871, with approximately 50% co-funding supplied by MECO. The project was designed to develop and demonstrate an integrated monitoring, communications, database, applications, and decision support solution that aggregates renewable energy (RE), other distributed generation (DG), energy storage, and demand response technologies in a distribution system to achieve both distribution and transmission-level benefits. The application of these new technologies and procedures will increase MECO’s visibility into system conditions, with the expected benefits of enabling more renewable energy resources to be integrated into the grid, improving service quality, increasing overall reliability of the power system, and ultimately reducing costs to both MECO and its customers.

  3. Transmission eigenvalues for operators with constant coefficients

    E-Print Network [OSTI]

    Michael Hitrik; Katsiaryna Krupchyk; Petri Ola; Lassi Päivärinta

    2010-04-28

    In this paper we study the interior transmission problem and transmission eigenvalues for multiplicative perturbations of linear partial differential operator of order $\\ge 2$ with constant real coefficients. Under suitable growth conditions on the symbol of the operator and the perturbation, we show the discreteness of the set of transmission eigenvalues and derive sufficient conditions on the existence of transmission eigenvalues. We apply these techniques to the case of the biharmonic operator and the Dirac system. In the hypoelliptic case we present a connection to scattering theory.

  4. Abstract--As a common tendency, large-scale wind farms are increasingly connected to the transmission system of modern

    E-Print Network [OSTI]

    Chen, Zhe

    include [1, 2]: · Under normal conditions: Frequency and voltage ranges Active power regulation and frequency control Reactive power regulation and voltage control · Under disturbance conditions: Voltage ride regulation. For variable-speed wind turbines which are connected to the power system through power electronic

  5. Transmission Line Security Monitor: Final Report

    SciTech Connect (OSTI)

    John Svoboda

    2011-04-01

    The Electric Power Transmission Line Security Monitor System Operational Test is a project funded by the Technical Support Working Group (TSWG). TSWG operates under the Combating Terrorism Technical Support Office that functions under the Department of Defense. The Transmission Line Security Monitor System is based on technology developed by Idaho National Laboratory. The technology provides a means for real-time monitoring of physical threats and/or damage to electrical transmission line towers and conductors as well as providing operational parameters to transmission line operators to optimize transmission line operation. The end use is for monitoring long stretches of transmission lines that deliver electrical power from remote generating stations to cities and industry. These transmission lines are generally located in remote transmission line corridors where security infrastructure may not exist. Security and operational sensors in the sensor platform on the conductors take power from the transmission line and relay security and operational information to operations personnel hundreds of miles away without relying on existing infrastructure. Initiated on May 25, 2007, this project resulted in pre-production units tested in realistic operational environments during 2010. A technology licensee, Lindsey Manufacturing of Azusa California, is assisting in design, testing, and ultimately production. The platform was originally designed for a security monitoring mission, but it has been enhanced to include important operational features desired by electrical utilities.

  6. Forced cooling of underground electric power transmission lines : design manual

    E-Print Network [OSTI]

    Brown, Jay A.

    1978-01-01

    The methodology utilized for the design of a forced-cooled pipe-type underground transmission system is presented. The material is divided into three major parts: (1) The Forced-cooled Pipe-Type Underground Transmission ...

  7. Detailed high-accuracy megavoltage transmission measurements: A sensitive experimental benchmark of EGSnrc

    SciTech Connect (OSTI)

    Ali, E. S. M.; McEwen, M. R.; Rogers, D. W. O.

    2012-10-15

    Purpose: There are three goals for this study: (a) to perform detailed megavoltage transmission measurements in order to identify the factors that affect the measurement accuracy, (b) to use the measured data as a benchmark for the EGSnrc system in order to identify the computational limiting factors, and (c) to provide data for others to benchmark Monte Carlo codes. Methods: Transmission measurements are performed at the National Research Council Canada on a research linac whose incident electron parameters are independently known. Automated transmission measurements are made on-axis, down to a transmission value of {approx}1.7%, for eight beams between 10 MV (the lowest stable MV beam on the linac) and 30 MV, using fully stopping Be, Al, and Pb bremsstrahlung targets and no fattening filters. To diversify energy differentiation, data are acquired for each beam using low-Z and high-Z attenuators (C and Pb) and Farmer chambers with low-Z and high-Z buildup caps. Experimental corrections are applied for beam drifts (2%), polarity (2.5% typical maximum, 6% extreme), ion recombination (0.2%), leakage (0.3%), and room scatter (0.8%)-the values in parentheses are the largest corrections applied. The experimental setup and the detectors are modeled using EGSnrc, with the newly added photonuclear attenuation included (up to a 5.6% effect). A detailed sensitivity analysis is carried out for the measured and calculated transmission data. Results: The developed experimental protocol allows for transmission measurements with 0.4% uncertainty on the smallest signals. Suggestions for accurate transmission measurements are provided. Measurements and EGSnrc calculations agree typically within 0.2% for the sensitivity of the transmission values to the detector details, to the bremsstrahlung target material, and to the incident electron energy. Direct comparison of the measured and calculated transmission data shows agreement better than 2% for C (3.4% for the 10 MV beam) and typically better than 1% for Pb. The differences can be explained by acceptable photon cross section changes of Less-Than-Or-Slanted-Equal-To 0.4%. Conclusions: Accurate transmission measurements require accounting for a number of influence quantities which, if ignored, can collectively introduce errors larger than 10%. Accurate transmission calculations require the use of the most accurate data and physics options available in EGSnrc, particularly the more accurate bremsstrahlung angular sampling option and the newly added modeling of photonuclear attenuation. Comparison between measurements and calculations implies that EGSnrc is accurate within 0.2% for relative ion chamber response calculations. Photon cross section uncertainties are the ultimate limiting factor for the accuracy of the calculated transmission data (Monte Carlo or analytical).

  8. On the simulation of the energy transmission in the forbidden band-gap of a spatially discrete double sine-Gordon system

    E-Print Network [OSTI]

    J. E. Macías-Díaz

    2011-12-02

    In this work, we present a numerical method to consistently approximate solutions of a spatially discrete, double sine-Gordon chain which considers the presence of external damping. In addition to the finite-difference scheme employed to approximate the solution of the difference-differential equations of the model under investigation, our method provides positivity-preserving schemes to approximate the local and the total energy of the system, in such way that the discrete rate of change of the total energy with respect to time provides a consistent approximation of the corresponding continuous rate of change. Simulations are performed, first of all, to assess the validity of the computational technique against known qualitative solutions of coupled sine-Gordon and coupled double sine-Gordon chains. Secondly, the method is used in the investigation of the phenomenon of nonlinear transmission of energy in double sine-Gordon systems; the qualitative effects of the damping coefficient on the occurrence of the nonlinear process of supratransmission are briefly determined in this work, too.

  9. Ideology Among Independent Voter Groups 

    E-Print Network [OSTI]

    Berry, Meagan

    2007-07-14

    Not all independent voters are the same. Some independents lean toward a political party and are therefore called “independent leaners.” The objective here is to uncover what forces cause independent leaners to retain some level of partisanship...

  10. Features of a fully renewable US electricity system: Optimized mixes of wind and solar PV and transmission grid extensions

    E-Print Network [OSTI]

    Becker, Sarah; Andresen, Gorm B; Zeyer, Timo; Schramm, Stefan; Greiner, Martin; Jacobson, Mark Z

    2014-01-01

    Wind and solar PV generation data for the entire contiguous US are calculated, on the basis of 32 years of weather data with temporal resolution of one hour and spatial resolution of 40x40km$^2$, assuming site-suitability-based as well as stochastic wind and solar PV capacity distributions throughout the country. These data are used to investigate a fully renewable electricity system, resting primarily upon wind and solar PV power. We find that the seasonal optimal mix of wind and solar PV comes at around 80% solar PV share, owing to the US summer load peak. By picking this mix, long-term storage requirements can be more than halved compared to a wind only mix. The daily optimal mix lies at about 80% wind share due to the nightly gap in solar PV production. Picking this mix instead of solar only reduces backup energy needs by about 50%. Furthermore, we calculate shifts in FERC (Federal Energy Regulatory Commission)-level LCOE (Levelized Costs Of Electricity) for wind and solar PV due to their differing resour...

  11. Series Transmission Line Transformer

    DOE Patents [OSTI]

    Buckles, Robert A. (Livermore, CA); Booth, Rex (Livermore, CA); Yen, Boris T. (El Cerrito, CA)

    2004-06-29

    A series transmission line transformer is set forth which includes two or more of impedance matched sets of at least two transmissions lines such as shielded cables, connected in parallel at one end ans series at the other in a cascading fashion. The cables are wound about a magnetic core. The series transmission line transformer (STLT) which can provide for higher impedance ratios and bandwidths, which is scalable, and which is of simpler design and construction.

  12. Transmission and Storage Operations

    Energy Savers [EERE]

    Transmission and Storage Operations Natural Gas Infrastructure R&D and Methane Mitigation Workshop Mary Savalle, PMP, LSSGB Compression Reliability Engineer November 12, 2014...

  13. Collaborative Transmission Technology Roadmap

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Addendum to the Collaborative Transmission Technology Roadmap March 2014 Bonneville Power Administration Enhanced PDF Functionality Functionality of the PDF version of this...

  14. Patterns of transmission investment

    E-Print Network [OSTI]

    Joskow, Paul L.

    2005-01-01

    This paper examines a number of issues associated with alternative analytical approaches for evaluating investments in electricity transmission infrastructure and alternative institutional arrangements to govern network ...

  15. Influence of the immune system on peripherally acquired transmissible spongiform encephalopathy infection with special reference to the role of the follicular dendritic cell 

    E-Print Network [OSTI]

    Brown, Karen L.

    2009-01-01

    The Transmissible Spongiform Encephalopathies (TSEs) or “prion” diseases are a group of fatal neurodegenerative diseases the aetiology of which is not fully understood. These diseases are characterised by a number of ...

  16. EC Transmission Line Materials

    SciTech Connect (OSTI)

    Bigelow, Tim S

    2012-05-01

    The purpose of this document is to identify materials acceptable for use in the US ITER Project Office (USIPO)-supplied components for the ITER Electron cyclotron Heating and Current Drive (ECH&CD) transmission lines (TL), PBS-52. The source of material property information for design analysis shall be either the applicable structural code or the ITER Material Properties Handbook. In the case of conflict, the ITER Material Properties Handbook shall take precedence. Materials selection, and use, shall follow the guidelines established in the Materials Assessment Report (MAR). Materials exposed to vacuum shall conform to the ITER Vacuum Handbook. [Ref. 2] Commercial materials shall conform to the applicable standard (e.g., ASTM, JIS, DIN) for the definition of their grade, physical, chemical and electrical properties and related testing. All materials for which a suitable certification from the supplier is not available shall be tested to determine the relevant properties, as part of the procurement. A complete traceability of all the materials including welding materials shall be provided. Halogenated materials (example: insulating materials) shall be forbidden in areas served by the detritiation systems. Exceptions must be approved by the Tritium System and Safety Section Responsible Officers.

  17. Biennial Assessment of the Fifth Power Plan Transmission Issues

    E-Print Network [OSTI]

    unscheduled electricity flows over transmission lines leading to increased risks to electric system-construction alternatives to transmission; · Inability to effectively monitor the wholesale electricity market, identifyBiennial Assessment of the Fifth Power Plan Transmission Issues INTRODUCTION The Fifth Power Plan

  18. Transmission Pricing and Congestion Management: Efficiency, Simplicity and Open Access

    E-Print Network [OSTI]

    Oren, Shmuel S.

    to the transmission grid is the essential centerpiece for a competitive electricity market. Order 888 and Order 889 for the electric power industry restructuring. These orders provide guidelines for nondiscriminatory transmission functions of the ISO. In an open access, competitive electricity system a transmission pricing scheme should

  19. Transmission Line Security Monitor

    ScienceCinema (OSTI)

    None

    2013-05-28

    The Transmission Line Security Monitor is a multi-sensor monitor that mounts directly on high-voltage transmission lines to detect, characterize and communicate terrorist activity, human tampering and threatening conditions around support towers. For more information about INL's critical infrastructure protection research, visit http://www.facebook.com/idahonationallaboratory.

  20. Transmission Line Security Monitor

    SciTech Connect (OSTI)

    2011-01-01

    The Transmission Line Security Monitor is a multi-sensor monitor that mounts directly on high-voltage transmission lines to detect, characterize and communicate terrorist activity, human tampering and threatening conditions around support towers. For more information about INL's critical infrastructure protection research, visit http://www.facebook.com/idahonationallaboratory.

  1. Unpredictability and the transmission of numbers

    E-Print Network [OSTI]

    Myers, John M

    2015-01-01

    Curiously overlooked in physics is its dependence on the transmission of numbers. For example the transmission of numerical clock readings is implicit in the concept of a coordinate system. The transmission of numbers and other logical distinctions is often achieved over a computer-mediated communications network in the face of an unpredictable environment. By unpredictable we mean something stronger than the spread of probabilities over given possible outcomes, namely an opening to unforeseeable possibilities. Unpredictability, until now overlooked in theoretical physics, makes the transmission of numbers interesting. Based on recent proofs within quantum theory that provide a theoretical foundation to unpredictability, here we show how regularities in physics rest on a background of channels over which numbers are transmitted. As is known to engineers of digital communications, numerical transmissions depend on coordination reminiscent of the cycle of throwing and catching by players tossing a ball back and...

  2. Electrical Transmission Line Diametrical Retention Mechanism

    DOE Patents [OSTI]

    Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT); Pixton, David (Lehi, UT); Dahlgren, Scott (Provo, UT); Sneddon, Cameron (Provo, UT); Briscoe, Michael (Lehi, UT); Fox, Joe (Spanish Fork, UT)

    2006-01-03

    The invention is a mechanism for retaining an electrical transmission line. In one embodiment of the invention it is a system for retaining an electrical transmission line within downhole components. The invention allows a transmission line to be attached to the internal diameter of drilling components that have a substantially uniform drilling diameter. In accordance with one aspect of the invention, the system includes a plurality of downhole components, such as sections of pipe in a drill string, drill collars, heavy weight drill pipe, and jars. The system also includes a coaxial cable running between the first and second end of a drill pipe, the coaxial cable having a conductive tube and a conductive core within it. The invention allows the electrical transmission line to withstand the tension and compression of drill pipe during routine drilling cycles.

  3. DOE Electricity Transmission System Workshop

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i pState Efficiency,Energy Newssuccessfully|

  4. Open Transmission and Spot Markets for Power: Models of Power and Transmission Pricing on the Western Network

    E-Print Network [OSTI]

    White, Douglas R.

    of an efficient and stable wholesale power market. If the retail market were to achieve a comparable efficiencyMBS 97-07 Open Transmission and Spot Markets for Power: Models of Power and Transmission Pricing markets for electric power by requiring utilities to open their transmission systems to wholesale power

  5. Transmission Cost Allocation Methodologies for Regional Transmission Organizations

    SciTech Connect (OSTI)

    Fink, S.; Rogers, J.; Porter, K.

    2010-07-01

    This report describes transmission cost allocation methodologies for transmission projects developed to maintain or enhance reliability, to interconnect new generators, or to access new resources and enhance competitive bulk power markets, otherwise known as economic transmission projects.

  6. Integrated Transmission and Distribution Control

    SciTech Connect (OSTI)

    Kalsi, Karanjit; Fuller, Jason C.; Tuffner, Francis K.; Lian, Jianming; Zhang, Wei; Marinovici, Laurentiu D.; Fisher, Andrew R.; Chassin, Forrest S.; Hauer, Matthew L.

    2013-01-16

    Distributed, generation, demand response, distributed storage, smart appliances, electric vehicles and renewable energy resources are expected to play a key part in the transformation of the American power system. Control, coordination and compensation of these smart grid assets are inherently interlinked. Advanced control strategies to warrant large-scale penetration of distributed smart grid assets do not currently exist. While many of the smart grid technologies proposed involve assets being deployed at the distribution level, most of the significant benefits accrue at the transmission level. The development of advanced smart grid simulation tools, such as GridLAB-D, has led to a dramatic improvement in the models of smart grid assets available for design and evaluation of smart grid technology. However, one of the main challenges to quantifying the benefits of smart grid assets at the transmission level is the lack of tools and framework for integrating transmission and distribution technologies into a single simulation environment. Furthermore, given the size and complexity of the distribution system, it is crucial to be able to represent the behavior of distributed smart grid assets using reduced-order controllable models and to analyze their impacts on the bulk power system in terms of stability and reliability. The objectives of the project were to: • Develop a simulation environment for integrating transmission and distribution control, • Construct reduced-order controllable models for smart grid assets at the distribution level, • Design and validate closed-loop control strategies for distributed smart grid assets, and • Demonstrate impact of integrating thousands of smart grid assets under closed-loop control demand response strategies on the transmission system. More specifically, GridLAB-D, a distribution system tool, and PowerWorld, a transmission planning tool, are integrated into a single simulation environment. The integrated environment allows the load flow interactions between the bulk power system and end-use loads to be explicitly modeled. Power system interactions are modeled down to time intervals as short as 1-second. Another practical issue is that the size and complexity of typical distribution systems makes direct integration with transmission models computationally intractable. Hence, the focus of the next main task is to develop reduced-order controllable models for some of the smart grid assets. In particular, HVAC units, which are a type of Thermostatically Controlled Loads (TCLs), are considered. The reduced-order modeling approach can be extended to other smart grid assets, like water heaters, PVs and PHEVs. Closed-loop control strategies are designed for a population of HVAC units under realistic conditions. The proposed load controller is fully responsive and achieves the control objective without sacrificing the end-use performance. Finally, using the T&D simulation platform, the benefits to the bulk power system are demonstrated by controlling smart grid assets under different demand response closed-loop control strategies.

  7. Texas Independence Hall 

    E-Print Network [OSTI]

    Raiford Stripling Associates, Inc.; Stripling, Raiford L.

    2011-08-29

    Brazos Valley Research Associates (BVRA) conducted a 100% pedestrian survey of an 85 acre tract of land, the site of the proposed Bay City Independent School District High School in north-central Matagorda County, Texas on May 23-24, 1999...

  8. EIS-0411: Transmission Agency of Northern California Transmission Project

    Broader source: Energy.gov [DOE]

    This EIS is for the Western Area Power Administration construction, operation, and maintenance of the proposed transmission agency of Northern California Transmission Project, California.

  9. Unambiguous discrimination of linearly independent states as an eavesdropping

    E-Print Network [OSTI]

    Dusek, Miloslav

    Unambiguous discrimination of linearly independent states as an eavesdropping strategy Miloslav- ous state discrimination and to get some information on the key without disturbing the transmission- curity against beam-splitting attack does not necessarily imply security against the unambiguous-state-discrimination

  10. Interconnection-Wide Transmission Planning Initiative - Meeting...

    Energy Savers [EERE]

    Recovery Act Interconnection Transmission Planning Interconnection-Wide Transmission Planning Initiative - Meeting Calendars Interconnection-Wide Transmission Planning...

  11. Energy Transmission and Infrastructure

    SciTech Connect (OSTI)

    Mathison, Jane

    2012-12-31

    The objective of Energy Transmission and Infrastructure Northern Ohio (OH) was to lay the conceptual and analytical foundation for an energy economy in northern Ohio that will: • improve the efficiency with which energy is used in the residential, commercial, industrial, agricultural, and transportation sectors for Oberlin, Ohio as a district-wide model for Congressional District OH-09; • identify the potential to deploy wind and solar technologies and the most effective configuration for the regional energy system (i.e., the ratio of distributed or centralized power generation); • analyze the potential within the district to utilize farm wastes to produce biofuels; • enhance long-term energy security by identifying ways to deploy local resources and building Ohio-based enterprises; • identify the policy, regulatory, and financial barriers impeding development of a new energy system; and • improve energy infrastructure within Congressional District OH-09. This objective of laying the foundation for a renewable energy system in Ohio was achieved through four primary areas of activity: 1. district-wide energy infrastructure assessments and alternative-energy transmission studies; 2. energy infrastructure improvement projects undertaken by American Municipal Power (AMP) affiliates in the northern Ohio communities of Elmore, Oak Harbor, and Wellington; 3. Oberlin, OH-area energy assessment initiatives; and 4. a district-wide conference held in September 2011 to disseminate year-one findings. The grant supported 17 research studies by leading energy, policy, and financial specialists, including studies on: current energy use in the district and the Oberlin area; regional potential for energy generation from renewable sources such as solar power, wind, and farm-waste; energy and transportation strategies for transitioning the City of Oberlin entirely to renewable resources and considering pedestrians, bicyclists, and public transportation as well as drivers in developing transportation policies; energy audits and efficiency studies for Oberlin-area businesses and Oberlin College; identification of barriers to residential energy efficiency and development of programming to remove these barriers; mapping of the solar-photovoltaic and wind-energy supply chains in northwest Ohio; and opportunities for vehicle sharing and collaboration among the ten organizations in Lorain County from the private, government, non-profit, and educational sectors. With non-grant funds, organizations have begun or completed projects that drew on the findings of the studies, including: creation of a residential energy-efficiency program for the Oberlin community; installation of energy-efficient lighting in Oberlin College facilities; and development by the City of Oberlin and Oberlin College of a 2.27 megawatt solar photovoltaic facility that is expected to produce 3,000 megawatt-hours of renewable energy annually, 12% of the College’s yearly power needs. Implementation of these and other projects is evidence of the economic feasibility and technical effectiveness of grant-supported studies, and additional projects are expected to advance to implementation in the coming years. The public has benefited through improved energydelivery systems and reduced energy use for street lighting in Elmore, Oak Harbor, and Wellington; new opportunities for assistance and incentives for residential energy efficiency in the Oberlin community; new opportunities for financial and energy savings through vehicle collaboration within Lorain County; and decreased reliance on fossil fuels and expanded production of renewable energy in the region. The dissemination conference and the summary report developed for the conference also benefited the public, but making the findings and recommendations of the regional studies broadly available to elected officials, city managers, educators, representatives of the private sector, and the general public.

  12. J.S. 24 POWER TRANSMISSION AND DISTRIBUTION; VECTORS; ELECTRIC...

    Office of Scientific and Technical Information (OSTI)

    power and power factor of instantaneous phasors Hsu, J.S. 24 POWER TRANSMISSION AND DISTRIBUTION; VECTORS; ELECTRIC CURRENTS; ELECTRIC POTENTIAL; MONITORING; POWER SYSTEMS;...

  13. Plains and Eastern Clean Line Transmission Line: Federal Register...

    Energy Savers [EERE]

    Clean Line project. The project would include an overhead 600-kilovolt (kv) high voltage, direct current electric transmission system and associated facilities with the capacity to...

  14. EIS-0486: Plains & Eastern Clean Line Transmission Project |...

    Broader source: Energy.gov (indexed) [DOE]

    Project. The proposed project would include an overhead 600 kilovolt (kV) high voltage direct current (HVDC) electric transmission system and associated facilities with the...

  15. Notice of Availability of Plains & Eastern Clean Line Transmission...

    Broader source: Energy.gov (indexed) [DOE]

    converter stations in Oklahoma and Tennessee; an approximately 720-mile high voltage direct current (HVDC) transmission line; an alternating current (AC) collection system;...

  16. Final EIS for Champlain Hudson Power Express Transmission Project...

    Broader source: Energy.gov (indexed) [DOE]

    operation, maintenance, and connection of a 336-mile, 1,000 megawatt, high-voltage direct current, electric transmission system that would cross the international border...

  17. Proposed Project: Plains & Eastern Clean Line Transmission Line...

    Energy Savers [EERE]

    & Eastern Clean Line project (the proposed project) would include an overhead +- 600 kV direct current electric transmission system and associated facilities with the capacity to...

  18. Wind Concurrent Cooling Could Increase Power Transmission Potential...

    Broader source: Energy.gov (indexed) [DOE]

    couple transmission systems with concurrent cooling processes. In areas where wind farms are being developed, there is potential to take advantage of concurrent...

  19. Designing electricity transmission auctions

    E-Print Network [OSTI]

    Greve, Thomas; Pollitt, Michael G.

    2012-10-26

    The UK has ambitious plans for exploiting offshore wind for electricity production in order to meet its challenging target under the EU Renewable Energy Directive. This could involve investing up to 20bn in transmission assets to bring electricity...

  20. Patterns of Transmission Investment

    E-Print Network [OSTI]

    Joskow, Paul

    2006-03-14

    influenced by uncertainty, contingency criteria and associated engineering reliability rules. I illustrate how the wholesale market and transmission investment frameworks have addressed these issues in England and Wales (E&W) since 1990 and in the PJM...

  1. Transmission and Storage Operations

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCEDInstallers/ContractorsPhotovoltaicsState ofSavingsTransmission SEAB PresentationTransmission and

  2. Imaging and microanalysis of thin ionomer layers by scanning transmission electron microscopy

    SciTech Connect (OSTI)

    Cullen, David A; Koestner, Roland; Kukreja, Ratan; Minko, Sergiy; Trotsenko, Oleksandr; Tokarev, Alexander V; Guetaz, Laure; Meyer III, Harry M; Parish, Chad M; More, Karren Leslie

    2014-01-01

    Improved conditions for imaging and spectroscopic mapping of thin perfluorosulfonic acid (PFSA) ionomer layers in fuel cell electrodes by scanning transmission electron microscopy (STEM) have been investigated. These conditions are first identified on model systems of Nafion ionomer-coated nanostructured thin films and nanoporous Si. The optimized conditions are then applied in a quantitative study of the ionomer through-layer loading for two typical electrode catalyst coatings using electron energy loss and energy dispersive X-ray spectroscopy in the transmission electron microscope. The e-beam induced damage to the perfluorosulfonic acid (PFSA) ionomer is quantified by following the fluorine mass loss with electron exposure and is then mitigated by a few orders of magnitude using cryogenic specimen cooling and a higher incident electron voltage. Multivariate statistical analysis is also applied to the analysis of spectrum images for data denoising and unbiased separation of independent components related to the catalyst, ionomer, and support.

  3. TRANSMISSION MEDIA 4.1 Guided Transmission Media

    E-Print Network [OSTI]

    Scarano, Vittorio

    CHAPTER 4 TRANSMISSION MEDIA 4.1 Guided Transmission Media Twisted Pair Coaxial Cable Optical Fiber 4.2 Wireless Transmission Antennas Terrestrial Microwave Satellite Microwave Broadcast Radio.4 Line-of-Sight Transmission Free Space Loss Atmospheric Absorption Multipath Refraction 4.5 Recommended

  4. EIS-0325: Schultz-Hanford Area Transmission Line Project Final Environmental Impact Statement, EIS-0325 (January 2003)

    Broader source: Energy.gov [DOE]

    BPA proposes to construct a new 500-kilovolt (kV) transmission line in central Washington. This project would increase transmission system capacity north of Hanford.

  5. Office of Inspector General report on audit of Southwestern Federal Power System combined financial statements and supplemental schedules (with independent auditors` reports thereon) for the years ended September 30, 1997 and 1996

    SciTech Connect (OSTI)

    NONE

    1998-10-06

    Southwestern Federal Power System (SWFPS) encompasses the operation of 24 hydroelectric power plants by the US Army Corps of Engineers and the marketing of power and energy from those plants by the Southwestern Power Administration (Southwestern) of the US Department of Energy. This report presents the results of the independent certified public accountants` audit of the SWFPS`s combined power system statements of assets, Federal investments and liabilities, and the related combined statements of revenues, expenses and accumulated net revenues, and cash flows.

  6. EC Transmission Line Risk Identification and Analysis

    SciTech Connect (OSTI)

    Bigelow, Tim S

    2012-04-01

    The purpose of this document is to assist in evaluating and planning for the cost, schedule, and technical project risks associated with the delivery and operation of the EC (Electron cyclotron) transmission line system. In general, the major risks that are anticipated to be encountered during the project delivery phase associated with the implementation of the Procurement Arrangement for the EC transmission line system are associated with: (1) Undefined or changing requirements (e.g., functional or regulatory requirements) (2) Underperformance of prototype, first unit, or production components during testing (3) Unavailability of qualified vendors for critical components Technical risks associated with the design and operation of the system are also identified.

  7. Printed circuit dispersive transmission line

    DOE Patents [OSTI]

    Ikezi, H.; Lin-Liu, Y.R.; DeGrassie, J.S.

    1991-08-27

    A printed circuit dispersive transmission line structure is disclosed comprising an insulator, a ground plane formed on one surface of the insulator, a first transmission line formed on a second surface of the insulator, and a second transmission line also formed on the second surface of the insulator and of longer length than the first transmission line and periodically intersecting the first transmission line. In a preferred embodiment, the transmission line structure exhibits highly dispersive characteristics by designing the length of one of the transmission line between two adjacent periodic intersections to be longer than the other. 5 figures.

  8. Printed circuit dispersive transmission line

    DOE Patents [OSTI]

    Ikezi, Hiroyuki (Rancho Santa Fe, CA); Lin-Liu, Yuh-Ren (San Diego, CA); DeGrassie, John S. (Encinitas, CA)

    1991-01-01

    A printed circuit dispersive transmission line structure is disclosed comprising an insulator, a ground plane formed on one surface of the insulator, a first transmission line formed on a second surface of the insulator, and a second transmission line also formed on the second surface of the insulator and of longer length than the first transmission line and periodically intersecting the first transmission line. In a preferred embodiment, the transmission line structure exhibits highly dispersive characteristics by designing the length of one of the transmission line between two adjacent periodic intersections to be longer than the other.

  9. Trends In U.S. Electric Power Transmission

    SciTech Connect (OSTI)

    NONE

    2007-11-15

    The report provides an overview of the changes that are occurring in the industry to implement the goals of improved reliability and reduced congestion costs. As the electric industry works to become a more efficient market, transmission stands as a key link between the competitive generation and the regulated distribution sectors. In this role as a key link, transmission is a major focus of government efforts to improve reliability and reduce congestion costs. The scope of the report is to analyze the dominant reliability, investment, siting, and competition/open access trends that are occurring in the domestic electric transmission industry. Topics covered include: the impact of the 2003 Northeast blackout on reliability rules; the move from voluntary to mandatory reliability standards; the advent of real-time transmission system monitoring; ISO/RTO efforts to improve system reliability; the drivers of government intervention in transmission investment; the move towards incentive-based rates for transmission investment; legislative and regulatory efforts to spur transmission investment to support renewable energy resources; the emergence of merchant transmission; the need for federal backstop authority on regional transmission projects; the designation of national interest electric transmission corridors; FERC Orders on siting transmission; the need for changes in open access and competition regulations; FERC efforts to increase open access and competition; legislative efforts to increase competition; and, current competitive issues in the industry.

  10. Abstract--The increase in use of power electronics in transmission and distribution applications is the driving

    E-Print Network [OSTI]

    Tolbert, Leon M.

    of the systems. High Voltage DC (HVDC) transmission and Flexible AC Transmission Systems (FACTS) are the widelyAbstract-- The increase in use of power electronics in transmission and distribution applications and compared for SiC and Si devices. These loss models are integrated with an HVDC transmission system to study

  11. Abstract--This paper proposes an optimization based method of planning reactive power control for electric transmission

    E-Print Network [OSTI]

    Kumar, Ratnesh

    for electric transmission systems to endow them with the capability of being reconfigured to a secure of the electric transmission system. There are three basic options for strengthening transmission systems: (1-term planning to strengthen transmission capability is necessary to increase future reliability levels

  12. Transmission line capital costs

    SciTech Connect (OSTI)

    Hughes, K.R.; Brown, D.R.

    1995-05-01

    The displacement or deferral of conventional AC transmission line installation is a key benefit associated with several technologies being developed with the support of the U.S. Department of Energy`s Office of Energy Management (OEM). Previous benefits assessments conducted within OEM have been based on significantly different assumptions for the average cost per mile of AC transmission line. In response to this uncertainty, an investigation of transmission line capital cost data was initiated. The objective of this study was to develop a database for preparing preliminary estimates of transmission line costs. An extensive search of potential data sources identified databases maintained by the Bonneville Power Administration (BPA) and the Western Area Power Administration (WAPA) as superior sources of transmission line cost data. The BPA and WAPA data were adjusted to a common basis and combined together. The composite database covers voltage levels from 13.8 to 765 W, with cost estimates for a given voltage level varying depending on conductor size, tower material type, tower frame type, and number of circuits. Reported transmission line costs vary significantly, even for a given voltage level. This can usually be explained by variation in the design factors noted above and variation in environmental and land (right-of-way) costs, which are extremely site-specific. Cost estimates prepared from the composite database were compared to cost data collected by the Federal Energy Regulatory Commission (FERC) for investor-owned utilities from across the United States. The comparison was hampered because the only design specifications included with the FERC data were voltage level and line length. Working within this limitation, the FERC data were not found to differ significantly from the composite database. Therefore, the composite database was judged to be a reasonable proxy for estimating national average costs.

  13. Extraordinary acoustic transmission mediated by Helmholtz resonators

    SciTech Connect (OSTI)

    Koju, Vijay; Rowe, Ebony; Robertson, William M.

    2014-07-15

    We demonstrate perfect transmission of sound through a rigid barrier embedded with Helmholtz resonators. The resonators are confined within a waveguide and they are oriented such that one neck protrudes onto each side of the barrier. Perfect sound transmission occurs even though the open area of the necks is less than 3% of the barrier area. Maximum transmission occurs at the resonant frequency of the Helmholtz resonator. Because the dimensions of the Helmholtz resonators are much smaller than the resonant wavelength, the transmission is independent of the direction of sound on the barrier and of the relative placement of the necks. Further, we show that the transmitted sound experiences a continuous phase transition of ? radians as a function of frequency through resonance. In simulations of adjacent resonators with slightly offset resonance frequencies, the phase difference leads to destructive interference. By expanding the simulation to a linear array of tuned Helmholtz resonators we show that it is possible to create an acoustic lens. The ability of Helmholtz resonator arrays to manipulate the phase of a plane acoustic wave enables a new class of sonic beam-forming devices analogous to diffractive optics.

  14. Error Types, Risk Assessment, & the Technology Delivery System for RESIN

    E-Print Network [OSTI]

    Roe, Emery

    2010-01-01

    reliability of electricity transmission has as well dependednot shared by the electricity transmission system protectedwe not want the electricity transmission system behind that

  15. Independent Verification and Validation

    E-Print Network [OSTI]

    Kemner, Ken

    : CMTS ­ Compliance Monitoring and Tracking System OSMAPS ­ Open Skies Management and Planning System&V. #12;A U.S. Department of Energy laboratory managed by UChicago Argonne, LLC Argonne's team of IV Opportunity Decision and Information Sciences Division Information Sciences Group More than ever, systems

  16. Independent Oversight Review, Oak Ridge Transuranic Waste Processing...

    Energy Savers [EERE]

    results of an independent oversight review of the management of safety significant structures, systems, and components at the Oak Ridge Transuranic Waste Processing Center...

  17. Independence Power and Light- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Independence Power and Light (IPL) offers rebates to residential customers for purchasing new, energy efficient appliances. Rebates are available on central air conditioning systems, heat pumps,...

  18. Autonomous data transmission apparatus

    DOE Patents [OSTI]

    Kotlyar, O.M.

    1997-03-25

    A autonomous borehole data transmission apparatus is described for transmitting measurement data from measuring instruments at the downhole end of a drill string by generating pressure pulses utilizing a transducer longitudinally responsive to magnetic field pulses caused by electrical pulses corresponding to the measured downhole parameters. 4 figs.

  19. Autonomous data transmission apparatus

    DOE Patents [OSTI]

    Kotlyar, Oleg M. (4675 W. 3825 S, Salt Lake City, UT 84120)

    1997-01-01

    A autonomous borehole data transmission apparatus for transmitting measurement data from measuring instruments at the downhole end of a drill string by generating pressure pulses utilizing a transducer longitudinally responsive to magnetic field pulses caused by electrical pulses corresponding to the measured downhole parameters.

  20. Borehole data transmission apparatus

    DOE Patents [OSTI]

    Kotlyar, O.M.

    1993-03-23

    A borehole data transmission apparatus is described whereby a centrifugal pump impeller(s) is used to provide a turbine stage having substantial pressure characteristics in response to changing rotational speed of a shaft for the pressure pulsing of data from the borehole through the drilling mud to the surface of the earth.

  1. Borehole data transmission apparatus

    DOE Patents [OSTI]

    Kotlyar, Oleg M. (1739 Grandview #2, Idaho Falls, ID 83402)

    1993-01-01

    A borehole data transmission apparatus whereby a centrifugal pump impeller(s) is used to provide a turbine stage having substantial pressure characteristics in response to changing rotational speed of a shaft for the pressure pulsing of data from the borehole through the drilling mud to the surface of the earth.

  2. Pulse transmission transceiver architecture for low power communications

    DOE Patents [OSTI]

    Dress, Jr., William B.; Smith, Stephen F.

    2003-08-05

    Systems and methods for pulse-transmission low-power communication modes are disclosed. A method of pulse transmission communications includes: generating a modulated pulse signal waveform; transforming said modulated pulse signal waveform into at least one higher-order derivative waveform; and transmitting said at least one higher-order derivative waveform as an emitted pulse. The systems and methods significantly reduce lower-frequency emissions from pulse transmission spread-spectrum communication modes, which reduces potentially harmful interference to existing radio frequency services and users and also simultaneously permit transmission of multiple data bits by utilizing specific pulse shapes.

  3. ELECTRICITY TRANSMISSION IN DEREGULATED MARKETS; CONFERENCE AT CARNEGIE MELLON UNIVERSITY, PITTSBURGH PA USA DECEMBER 2004 1 A criticality approach to monitoring cascading

    E-Print Network [OSTI]

    ELECTRICITY TRANSMISSION IN DEREGULATED MARKETS; CONFERENCE AT CARNEGIE MELLON UNIVERSITY the risk of cascading failure of electric power transmission systems as overall loading is increased failure is the usual mechanism for large blackouts of electric power transmission systems. For example

  4. The Mechanisms of Board Independence

    E-Print Network [OSTI]

    Gordon, Jeff

    2004-01-01

    the case of a management buyout, the independent directorsLines under the employee buyout. 3. Current SEC proposal [

  5. Value-based reliability transmission planning

    SciTech Connect (OSTI)

    Dalton, J.G. III; Garrison, D.L.; Fallon, C.M.

    1996-08-01

    This paper presents a new value-based reliability planning (VBRP) process proposed for planning Duke Power Company`s (DPC) regional transmission system. All transmission served customers are fed from DPC`s regional transmission system which consists of a 44-kV predominantly radial system and a 100-kV predominantly non-radial system. In the past, any single contingency that could occur during system peak conditions and cause a thermal overload required the overloaded facility to be upgraded, regardless of the costs or the likelihood of the overload occurring. The new VBRP process is based on transmission system reliability evaluation and includes the following important elements: (1) a ten-year historical data base describing the probabilities of forced outages for lines and transformers; (2) a five-year average load duration curve describing the probability of an overload should a contingency occur; (3) a customer outage cost data base; (4) and probabilistic techniques. The new process attempts to balance the costs of improving service reliability with the benefits or value that these improvements bring to these customers. The objective is to provide the customers their required level of reliability while minimizing the Total Cost of their electric service.

  6. Characterizing History Independent Data Structures

    E-Print Network [OSTI]

    Hartline, Jason D.

    Characterizing History Independent Data Structures Jason D. Hartline 1 , Edwin S. Hong 1 history independent data structures as proposed for study by Teague and Naor [2]. In a history independent data struc­ ture, nothing can be learned from the representation of the data structure except for what

  7. Characterizing History Independent Data Structures

    E-Print Network [OSTI]

    Mohr, Alexander E.

    Characterizing History Independent Data Structures Jason D. Hartline1 , Edwin S. Hong1 , Alexander history independent data structures as proposed for study by Teague and Naor [2]. In a history independent data struc- ture, nothing can be learned from the representation of the data structure except for what

  8. Enhanced geothermal systems (EGS) with CO2 as heat transmission fluid--A scheme for combining recovery of renewable energy with geologic storage of CO2

    E-Print Network [OSTI]

    Pruess, K.

    2010-01-01

    Interactions in Enhanced Geothermal Systems (EGS) with CO 2of Enhanced Geothermal Systems? , paper presented at Thirdfrom Enhanced Geothermal Systems, Proceedings, Paper

  9. Enhanced geothermal systems (EGS) with CO2 as heat transmission fluid--A scheme for combining recovery of renewable energy with geologic storage of CO2

    E-Print Network [OSTI]

    Pruess, K.

    2010-01-01

    Interactions in Enhanced Geothermal Systems (EGS) with CO 2with the Development of Enhanced Geothermal Systems? , paperProspects from Enhanced Geothermal Systems, Proceedings,

  10. Crystallization Kinetics of Thermosensitive Colloids Probed by Transmission Spectroscopy

    E-Print Network [OSTI]

    Wu, Jianzhong

    Crystallization Kinetics of Thermosensitive Colloids Probed by Transmission Spectroscopy Shijun hard spheres, soft spheres, and PNIPAM spheres. Introduction Crystallization of colloidal systems systems.1-15 In recent years, colloidal crystals have been used extensively for the fabrication

  11. Transmission area and two-photon correlated imaging

    E-Print Network [OSTI]

    Yanfeng Bai; Shensheng Han; Honglin Liu

    2006-11-03

    The relationship between transmission area of an object imaged and the visibility of its image is investigated in a lensless system. We show that the changes of the visibility are quite different when the transmission area is varied by different manners. An increase of the transmission by adding the slit number leads to a decrease of the visibility. While, the change is adverse when the slit width is widened for a given distance between two slits.

  12. Shock transmissibility of threaded joints

    SciTech Connect (OSTI)

    Hansen, N.R.; Bateman, V.I.; Brown, F.A.

    1996-12-31

    Sandia National Laboratories (SNL) designs mechanical systems with threaded joints that must survive high shock environments. These mechanical systems include penetrators that must survive soil and rock penetration; drilling pipe strings that must survive rock-cutting, shock environments; and laydown weapons that must survive delivery impact shock. This paper summarizes an analytical study and an experimental evaluation of compressive, one-dimensional, shock transmission through a threaded joint in a split Hopkinson bar configuration. Thread geometries were scaled to simulate large diameter threaded joints with loadings parallel to the axis of the threads. Both strain and acceleration were evaluated with experimental measurements and analysis. Analytical results confirm the experimental conclusions that in this split Hopkinson bar configuration, the change in the one-dimensional shock wave by the threaded joint is localized to a length equal to a few diameters` length beyond the threaded joint.

  13. Hybrid powertrain system

    DOE Patents [OSTI]

    Grillo, Ricardo C.; O'Neil, Walter K.; Preston, David M.

    2005-09-20

    A hybrid powertrain system is provided that includes a first prime mover having a rotational output, a second prime mover having a rotational output, and a transmission having a main shaft supporting at least two main shaft gears thereon. The transmission includes a first independent countershaft drivingly connected to the first prime mover and including at least one ratio gear supported thereon that meshes with a respective main shaft gear. A second independent countershaft is drivingly connected to the second prime mover and includes at least one ratio gear supported thereon that meshes with a respective main shaft gear. The ratio gears on the first and second countershafts cooperate with the main shaft gears to provide at least one gear ratio between the first and second countershafts and the main shaft. A shift control mechanism selectively engages and disengages the first and second countershafts for rotation with the main shaft.

  14. Drill string transmission line

    DOE Patents [OSTI]

    Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT); Pixton, David S. (Lehi, UT); Bradford, Kline (Orem, UT); Fox, Joe (Spanish Fork, UT)

    2006-03-28

    A transmission line assembly for transmitting information along a downhole tool comprising a pin end, a box end, and a central bore traveling between the pin end and the box end, is disclosed in one embodiment of the invention as including a protective conduit. A transmission line is routed through the protective conduit. The protective conduit is routed through the central bore and the ends of the protective conduit are routed through channels formed in the pin end and box end of the downhole tool. The protective conduit is elastically forced into a spiral or other non-linear path along the interior surface of the central bore by compressing the protective conduit to a length within the downhole tool shorter than the protective conduit.

  15. 650 IEEE TRANSACTIONS ON POWER DELIVERY, VOL. 26, NO. 2, APRIL 2011 Hourly Scheduling of DC Transmission Lines in

    E-Print Network [OSTI]

    Fu, Yong

    ). The impact of VSC-DC transmission system on the economics and the security of integrated ac/dc transmission will determine the optimal hourly schedule of controllable VSC-DC transmission systems in electricity markets;LOTFJOU et al.: HOURLY SCHEDULING OF DC TRANSMISSION LINES 651 , Vector of real and reactive power

  16. Transmission | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEt Al., 2013)OpenEnergyTrail Canyon GeothermalTransmission (Redirected from

  17. Transmission Siting_071508.indd

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCEDInstallers/ContractorsPhotovoltaicsState ofSavingsTransmission SEAB Presentation

  18. Boardman to Hemingway Transmission Project

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Market Generator Interconnection Reform Implementation Network Integration Transmission Service (NT Service) Network Open Season (NOS) PTSA Reform North American Energy...

  19. Transmission eigenvalues for elliptic operators

    E-Print Network [OSTI]

    Michael Hitrik; Katsiaryna Krupchyk; Petri Ola; Lassi Päivärinta

    2010-07-03

    A reduction of the transmission eigenvalue problem for multiplicative sign-definite perturbations of elliptic operators with constant coefficients to an eigenvalue problem for a non-selfadjoint compact operator is given. Sufficient conditions for the existence of transmission eigenvalues and completeness of generalized eigenstates for the transmission eigenvalue problem are derived. In the trace class case, the generic existence of transmission eigenvalues is established.

  20. Transmission Line Circuit Alexander Glasser

    E-Print Network [OSTI]

    Anlage, Steven

    Chaos in a Transmission Line Circuit Alexander Glasser Marshal Miller With... Prof. Edward Ott Prof times become shorter, circuit connections behave more and more like transmission lines. Theoretical(t) - Transmission Line (Zo, T) #12;5 Cf/Cr 1000 Vf Capacitance Voltage Cf Cr Model for Nonlinear Capacitor

  1. Neurons and Neural Transmission Part I / IV

    E-Print Network [OSTI]

    of neurons ­ Classification of neurons ­ Neuron Doctrine "Father of modern neuroscience" #12;Ramon y CajalNeurons and Neural Transmission Part I / IV Anton Kapliy February 24, 2009 #12;Nervous system of optical nerve #12;Ramon y Cajal's neurons Information in neurons flows in one direction: "from dendrites

  2. New Mexico/Transmission | Open Energy Information

    Open Energy Info (EERE)

    Western Area Power Administration, provide transmission in the state of New Mexico. Renewable Energy Transmission Authority The New Mexico Renewable Energy Transmission Authority...

  3. 2015 National Electric Transmission Congestion Study | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    2015 National Electric Transmission Congestion Study 2015 National Electric Transmission Congestion Study 2015 National Electric Transmission Congestion Study Section 1221(a) of...

  4. Flexible Transmission in the Smart Grid

    E-Print Network [OSTI]

    Hedman, Kory Walter

    2010-01-01

    models of the electric transmission network flow problem.requirements in the electric transmission grid is provided.operations of the electric transmission grid. It also

  5. Cyclical-Transmission-Schedule Reservation Technique

    E-Print Network [OSTI]

    Garcia-Luna-Aceves, J.J.

    2010-01-01

    52) (58) (56) CYCLICAL-TRANSMISSION-SCHEDULE 6,118,787 A *for Topology Dependent Transmission Scheduling, in Proc.times an associ- ated transmission waiting time; and

  6. Flexible Transmission in the Smart Grid

    E-Print Network [OSTI]

    Hedman, Kory Walter

    2010-01-01

    differences: models for transmission property rights,” IEEEto solve power transmission network design problems,” IEEES. A. "Network topologies and transmission investment under

  7. Transmission Power Management for Wireless Health Applications

    E-Print Network [OSTI]

    Amini, Navid

    2012-01-01

    Experimental Analysis of RF Transmission Characteristics foroptimal low-energy transmission strategy for ieee 802.11a/h.Distributed algorithms for transmission power control in

  8. Device-to-Device Assisted Video Transmission

    E-Print Network [OSTI]

    Shen, Y; Zhou, W; Wu, P; Toni, L; Cosman, P C; Milstein, L B

    2013-01-01

    Equipment (UE) radio transmission and reception (3GPP TSand Mobile Ad Hoc Networks: Transmission-Capacity Tradeoff”,Device Assisted Video Transmission Yichao Shen, Wenwen Zhou,

  9. Transmission Grid Integration | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    utility operations, engage in transmission planning forums, and model generator output. More information on transmission grid integration is available in the Transmission...

  10. Electricity Transmission, A Primer | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Electricity Transmission, A Primer Electricity Transmission, A Primer This primer on electric transmission is intended to help policymakers understand the physics of the...

  11. Enhancing Independent Task Performance for Individuals with Mental Retardation Through Use of a Handheld Self-Directed Visual and Audio Promptiong System.

    E-Print Network [OSTI]

    Davies, Daniel K.; Stock, Steven E.; Wehmeyer, Michael L.

    2002-01-01

    , the most frequently used input devices (keyboard and mouse) are not easily mastered by people with mental retardation and despite the fact that touch screen devices for desktop PCs are available, they are not widely available in most community... to individuals with mental retardation. Devices that operate the Windows CE operating system include an integrated touch screen for device operation and are specifically designed for portable use. The training software developed for this platform involved...

  12. Wireless Sensor Network for Electric Transmission Line Monitoring

    SciTech Connect (OSTI)

    Alphenaar, Bruce

    2009-06-30

    Generally, federal agencies tasked to oversee power grid reliability are dependent on data from grid infrastructure owners and operators in order to obtain a basic level of situational awareness. Since there are many owners and operators involved in the day-to-day functioning of the power grid, the task of accessing, aggregating and analyzing grid information from these sources is not a trivial one. Seemingly basic tasks such as synchronizing data timestamps between many different data providers and sources can be difficult as evidenced during the post-event analysis of the August 2003 blackout. In this project we investigate the efficacy and cost effectiveness of deploying a network of wireless power line monitoring devices as a method of independently monitoring key parts of the power grid as a complement to the data which is currently available to federal agencies from grid system operators. Such a network is modeled on proprietary power line monitoring technologies and networks invented, developed and deployed by Genscape, a Louisville, Kentucky based real-time energy information provider. Genscape measures transmission line power flow using measurements of electromagnetic fields under overhead high voltage transmission power lines in the United States and Europe. Opportunities for optimization of the commercial power line monitoring technology were investigated in this project to enable lower power consumption, lower cost and improvements to measurement methodologies. These optimizations were performed in order to better enable the use of wireless transmission line monitors in large network deployments (perhaps covering several thousand power lines) for federal situational awareness needs. Power consumption and cost reduction were addressed by developing a power line monitor using a low power, low cost wireless telemetry platform known as the ''Mote''. Motes were first developed as smart sensor nodes in wireless mesh networking applications. On such a platform, it has been demonstrated in this project that wireless monitoring units can effectively deliver real-time transmission line power flow information for less than $500 per monitor. The data delivered by such a monitor has during the course of the project been integrated with a national grid situational awareness visualization platform developed by Oak Ridge National Laboratory. Novel vibration energy scavenging methods based on piezoelectric cantilevers were also developed as a proposed method to power such monitors, with a goal of further cost reduction and large-scale deployment. Scavenging methods developed during the project resulted in 50% greater power output than conventional cantilever-based vibrational energy scavenging devices typically used to power smart sensor nodes. Lastly, enhanced and new methods for electromagnetic field sensing using multi-axis magnetometers and infrared reflectometry were investigated for potential monitoring applications in situations with a high density of power lines or high levels of background 60 Hz noise in order to isolate power lines of interest from other power lines in close proximity. The goal of this project was to investigate and demonstrate the feasibility of using small form factor, highly optimized, low cost, low power, non-contact, wireless electric transmission line monitors for delivery of real-time, independent power line monitoring for the US power grid. The project was divided into three main types of activity as follows; (1) Research into expanding the range of applications for non-contact power line monitoring to enable large scale low cost sensor network deployments (Tasks 1, 2); (2) Optimization of individual sensor hardware components to reduce size, cost and power consumption and testing in a pilot field study (Tasks 3,5); and (3) Demonstration of the feasibility of using the data from the network of power line monitors via a range of custom developed alerting and data visualization applications to deliver real-time information to federal agencies and others tasked with grid reliability (Tasks 6,8)

  13. Transmission problems in (thermo-)viscoelasticity with Kelvin-Voigt damping: non-exponential, strong

    E-Print Network [OSTI]

    Racke, Reinhard

    Transmission problems in (thermo-)viscoelasticity with Kelvin-Voigt damping: non transmission problems between a (thermo-)viscoelastic system with Kelvin-Voigt damping, and a purely elastic it is coupled through transmission to a purely elastic system. The approach shows the lack of exponential

  14. Transmission Design at the National Level: Benefits, Risks and Possible Paths Forward

    E-Print Network [OSTI]

    Electric Energy System #12;Transmission Design at the National Level: Benefits, Risks and Possible Paths Planning, Western Electricity Coordinating Council (WECC) · Dale Osborn, Consulting Advisor, Transmission to move electric energy interregionally is limited to the capacity of the existing transmission system

  15. EIS-0124: Conrad-Shelby Transmission Line Project, Montana

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy's Western Area Power Administration developed this statement to assess the environmental impact of adding a 230 kV transmission line between Conrad and Shelby, Montana and a new substation near Shelby to update the stressed electrical transmission system.

  16. Transmission investment and expansion planning in a restructured electricity market

    E-Print Network [OSTI]

    Leung, Ka-Cheong

    Transmission investment and expansion planning in a restructured electricity market F.F Wua,b , F.L. Zhengb,c , F.S. Wena,b, * a Center for Electrical Energy Systems, University of Hong Kong, Pokfulam Road, Guangzhou, 510640, China Abstract Transmission planning in a restructured electricity market becomes

  17. Unpredictability and the transmission of numbers

    E-Print Network [OSTI]

    John M. Myers; F. Hadi Madjid

    2015-08-05

    Curiously overlooked in physics is its dependence on the transmission of numbers. For example the transmission of numerical clock readings is implicit in the concept of a coordinate system. The transmission of numbers and other logical distinctions is often achieved over a computer-mediated communications network in the face of an unpredictable environment. By unpredictable we mean something stronger than the spread of probabilities over given possible outcomes, namely an opening to unforeseeable possibilities. Unpredictability, until now overlooked in theoretical physics, makes the transmission of numbers interesting. Based on recent proofs within quantum theory that provide a theoretical foundation to unpredictability, here we show how regularities in physics rest on a background of channels over which numbers are transmitted. As is known to engineers of digital communications, numerical transmissions depend on coordination reminiscent of the cycle of throwing and catching by players tossing a ball back and forth. In digital communications, the players are computers, and the required coordination involves unpredictably adjusting "live clocks" that step these computers through phases of a cycle. We show how this phasing, which we call `logical synchronization,' constrains number-carrying networks, and, if a spacetime manifold in invoked, put "stripes" on spacetime. Via its logically synchronized channels, a network of live clocks serves as a reference against which to locate events. Such a network in any case underpins a coordinate frame, and in some cases the direct use of a network can be tailored to investigate an unpredictable environment. Examples include explorations of gravitational variations near Earth.

  18. Electricity transmission pricing : how much does it cost to get it wrong?

    E-Print Network [OSTI]

    Green, Richard

    2004-01-01

    Economists know how to calculate optimal prices for electricity transmission. These are rarely applied in practice. This paper develops a thirteen node model of the transmission system in England and Wales, incorporating ...

  19. EA-1896: Williston to Stateline Transmission Line Project, Mountrail Williams Electric Cooperative, Williston, North Dakota

    Broader source: Energy.gov [DOE]

    DOE’s Western Area Power Administration is preparing this EA to evaluate the environmental impacts of interconnecting the proposed Stateline I transmission line, in Williston, North Dakota, to Western’s transmission system.

  20. DOE Transmission Workshop

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i pStateDOE FederalTheofHeyeck, AEP, Sr. Vice President, Transmission

  1. Transmission Business Line

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With U.S.Week DayDr.Theories81TowardsTrackingCarbon2Transmission

  2. Light Transmission through Sub-Wavelength Apertures

    E-Print Network [OSTI]

    Visser, Taco D.

    Light Transmission through Sub-Wavelength Apertures #12;#12;VRIJE UNIVERSITEIT Light Transmission Transmission through a Single Sub-wavelength Slit 59 3.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 3.2 The configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 3.3 Transmission

  3. 2012 National Electric Transmission Congestion Study: Presentation...

    Energy Savers [EERE]

    2012 National Electric Transmission Congestion Study: Presentation from Congestion Study Webinar Series 2012 National Electric Transmission Congestion Study: Presentation from...

  4. 2009 National Electric Transmission Congestion Study Workshops...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Congestion Studies 2009 Congestion Study 2009 National Electric Transmission Congestion Study Workshops 2009 National Electric Transmission Congestion Study Workshops DOE...

  5. Transmission Eigenvalues in Inverse Scattering Theory

    E-Print Network [OSTI]

    2012-04-22

    TE and Scattering Theory. Spherically Stratified Media. Transmission Eigenvalues. Open Problem. Transmission Eigenvalues in Inverse. Scattering Theory.

  6. Transmission Reliability Program 2015 Reliability & Markets Peer...

    Office of Environmental Management (EM)

    Transmission Reliability Program 2015 Reliability & Markets Peer Review Materials Available Transmission Reliability Program 2015 Reliability & Markets Peer Review Materials...

  7. Check Estimates and Independent Costs

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    1997-03-28

    Check estimates and independent cost estimates (ICEs) are tools that can be used to validate a cost estimate. Estimate validation entails an objective review of the estimate to ensure that estimate criteria and requirements have been met and well documented, defensible estimate has been developed. This chapter describes check estimates and their procedures and various types of independent cost estimates.

  8. Enhanced geothermal systems (EGS) with CO2 as heat transmission fluid--A scheme for combining recovery of renewable energy with geologic storage of CO2

    E-Print Network [OSTI]

    Pruess, K.

    2010-01-01

    effects on heat extraction rates and the water content ofof heat extraction for CO 2 and water- based systems, we hadover water-based systems, including larger heat extraction

  9. Manual transmission shift linkage

    SciTech Connect (OSTI)

    Sewell, J.S.

    1991-10-01

    This patent describes a sliding gear manual transmission (10) for an automotive vehicle including a transmission housing (11), an input shaft (12) journalled in the housing, an output shaft (13) axially aligned with the input shaft and journalled in the housing, a countershaft (15) journalled in the housing and carrying a cluster gear (17) thereon, the input shaft (12) terminating in an input gear (14), a plurality of gears (26,27,28,29,31,31) on the output shaft (13) in meshing engagement with the cluster gear (17), and a plurality of synchronizing clutches (36,38,41,42) on the output shaft and countershaft for engagement of gear ratios of the meshing gears, and an axially movable and rotatable shift rail (81) located in the housing and operatively connected to a shift lever (82) actuated by the vehicle operator, the improvement comprising an auxiliary shift rail (98) located in the housing (11) generally paralleling the first mentioned shift rail (81) to provide for actuation of fifth, sixth and reverse gears the auxiliary shift rail (98) having a 5-6 shift arm (104) journalled thereon for axial movement relative thereto, and a reverse shift arm (99) rotatably mounted thereon for axial movement therewith.

  10. Enhanced geothermal systems (EGS) with CO2 as heat transmission fluid--A scheme for combining recovery of renewable energy with geologic storage of CO2

    E-Print Network [OSTI]

    Pruess, K.

    2010-01-01

    Geothermal System) Project at Soultz-sous-Forets (Alsace,European EGS experiment at Soultz/France (Gérard et al. ,

  11. IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS--II: EXPRESS BRIEFS, VOL. 55, NO. 9, SEPTEMBER 2008 927 Using Transmission Line Outage Data to

    E-Print Network [OSTI]

    Dobson, Ian

    IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS--II: EXPRESS BRIEFS, VOL. 55, NO. 9, SEPTEMBER 2008 927 System Hui Ren, Student Member, IEEE, and Ian Dobson, Fellow, IEEE Abstract--We study cascading­Watson branching process model of cascading failure. Index Terms--Failure analysis, power systems, reliability

  12. Next generation CAT system

    E-Print Network [OSTI]

    Kim, Jaewon, S.M. Massachusetts Institute of Technology

    2010-01-01

    Two novel techniques for future CAT system are presented. Transmission descattering is a singleshot method to differentiate unscattered and scattered components of light transmission through a scattering material. ...

  13. The Impact of Distributed Generation on Power Transmission Grid Dynamics D. E. Newman B. A. Carreras M. Kirchner I. Dobson

    E-Print Network [OSTI]

    Dobson, Ian

    The Impact of Distributed Generation on Power Transmission Grid Dynamics D. E. Newman B. A on the robustness of the power transmission grid using a dynamic model of the power transmission system (OPA of the transmission grid. This intuitive improvement comes simply from the realization that less power would need

  14. Enhanced geothermal systems (EGS) with CO2 as heat transmission fluid--A scheme for combining recovery of renewable energy with geologic storage of CO2

    E-Print Network [OSTI]

    Pruess, K.

    2010-01-01

    Interactions in Enhanced Geothermal Systems (EGS) with CO 2Fluid, Proceedings, World Geothermal Congress 2010, Bali,Remain? Transactions, Geothermal Resources Council, Vol. 17,

  15. Dynamic Transmission Electron Microscopy

    SciTech Connect (OSTI)

    Evans, James E.; Jungjohann, K. L.; Browning, Nigel D.

    2012-10-12

    Dynamic transmission electron microscopy (DTEM) combines the benefits of high spatial resolution electron microscopy with the high temporal resolution of ultrafast lasers. The incorporation of these two components into a single instrument provides a perfect platform for in situ observations of material processes. However, previous DTEM applications have focused on observing structural changes occurring in samples exposed to high vacuum. Therefore, in order to expand the pump-probe experimental regime to more natural environmental conditions, in situ gas and liquid chambers must be coupled with Dynamic TEM. This chapter describes the current and future applications of in situ liquid DTEM to permit time-resolved atomic scale observations in an aqueous environment, Although this chapter focuses mostly on in situ liquid imaging, the same research potential exists for in situ gas experiments and the successful integration of these techniques promises new insights for understanding nanoparticle, catalyst and biological protein dynamics with unprecedented spatiotemporal resolution.

  16. Bulk Power System Dynamics and Control VI, August 22-27, 2004, Cortina D'Ampezzo, Italy 1 Joint Energy and Reserves Auction with

    E-Print Network [OSTI]

    Oren, Shmuel S.

    of restructured electricity markets is that an Independent System Operator (ISO) is charged with the task@ieor.berkeley.edu e-mail: ramteen@ieor.berkeley.edu Abstract-- System operators in the electricity industry are required to procure reserve capacity to deal with unanticipated outages, demand shocks, and transmission

  17. AGENDA: PETROLEUM PRODUCT TRANSMISSION & DISTRIBUTION

    Office of Energy Efficiency and Renewable Energy (EERE)

    The agenda for the Quadrennial Energy Review (QER) public stakeholder meeting in New Orleans on petroleum product transmission, distribution, and storage.

  18. Helicopter aids transmission pole replacement

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Helicopter-aids-transmission-pole-replacement Sign In About | Careers | Contact | Investors | bpa.gov Search News & Us Expand News & Us Projects & Initiatives Expand Projects...

  19. Transmission Planning | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    visualization, control, operations, and market structure will ultimately modernize the electricity transmission infrastructure to ease congestion, allow for increases in demand,...

  20. Sequence independent amplification of DNA

    DOE Patents [OSTI]

    Bohlander, S.K.

    1998-03-24

    The present invention is a rapid sequence-independent amplification procedure (SIA). Even minute amounts of DNA from various sources can be amplified independent of any sequence requirements of the DNA or any a priori knowledge of any sequence characteristics of the DNA to be amplified. This method allows, for example, the sequence independent amplification of microdissected chromosomal material and the reliable construction of high quality fluorescent in situ hybridization (FISH) probes from YACs or from other sources. These probes can be used to localize YACs on metaphase chromosomes but also--with high efficiency--in interphase nuclei. 25 figs.

  1. Model documentation natural gas transmission and distribution model (NGTDM) of the national energy modeling system. Volume II: Model developer`s report

    SciTech Connect (OSTI)

    Not Available

    1995-01-03

    To partially fulfill the requirements for {open_quotes}Model Acceptance{close_quotes} as stipulated in EIA Standard 91-01-01 (effective February 3, 1991), the Office of Integrated Analysis and Forecasting has conducted tests of the Natural Gas Transmission and Distribution Model (NGTDM) for the specific purpose of validating the forecasting model. This volume of the model documentation presents the results of {open_quotes}one-at-a-time{close_quotes} sensitivity tests conducted in support of this validation effort. The test results are presented in the following forms: (1) Tables of important model outputs for the years 2000 and 2010 are presented with respect to change in each input from the reference case; (2) Tables of percent changes from base case results for the years 2000 and 2010 are presented for important model outputs; (3) Tables of conditional sensitivities (percent change in output/percent change in input) for the years 2000 and 2010 are presented for important model outputs; (4) Finally, graphs presenting the percent change from base case results for each year of the forecast period are presented for selected key outputs. To conduct the sensitivity tests, two main assumptions are made in order to test the performance characteristics of the model itself and facilitate the understanding of the effects of the changes in the key input variables to the model on the selected key output variables: (1) responses to the amount demanded do not occur since there are no feedbacks of inputs from other NEMS models in the stand-alone NGTDM run. (2) All the export and import quantities from and to Canada and Mexico, and liquefied natural gas (LNG) imports and exports are held fixed (i.e., there are no changes in imports and exports between the reference case and the sensitivity cases) throughout the forecast period.

  2. Modeling and Verification of a Distributed Transmission Protocol Lubomir Ivanov

    E-Print Network [OSTI]

    Ivanov, Lubomir

    -parallel poset verification is a powerful methodology for proving the design correctness of complex systemsModeling and Verification of a Distributed Transmission Protocol Lubomir Ivanov Department verification methodologies has evolved in two directions: powerful, general techniques capable of accurately

  3. Western-UGP Transmission and Ancillary Services Rates Customer...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    than 17,000-circuit mile Federal transmission system, Western sells and delivers reliable electric power to most of the western half of the United States. Western's employees work...

  4. HEADLINE: BPA RAISES RATES TO BOLSTER FEDERAL POWER AND TRANSMISSION...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Doug Johnson, 503-230-5840 or 503-230-5131 BPA adopts new wholesale power and transmission rates Increases needed to sustain system value Portland, Ore. - The Bonneville...

  5. Financing a National Transmission Grid: What Are the Issues?

    E-Print Network [OSTI]

    Metcalf, Gilbert E.

    The United States requires a substantial investment in transmission capacity over the next several decades. This investment is needed to ensure system reliability, to accommodate growth in demand for electricity, and to ...

  6. EIS-0377: Big Stone II Power Plant and Transmission Project

    Broader source: Energy.gov [DOE]

    A systems study was carried out to identify the most appropriate locations to interconnect the proposed Big Stone II power plant to the regional utility grid. The study also identified transmission...

  7. Wireless power transmission utilizing a phased array of Tesla coils

    E-Print Network [OSTI]

    Stark, Joseph C. (Joseph Charles), 1980-

    2004-01-01

    This thesis discusses the theory and design of coupled resonant systems and how they can be linked in a phased array for the wireless transmission of electrical power. A detailed derivation of their operational theory is ...

  8. The interior transmission problem and bounds on transmission eigenvalues

    E-Print Network [OSTI]

    Michael Hitrik; Katsiaryna Krupchyk; Petri Ola; Lassi Päivärinta

    2010-09-28

    We study the interior transmission eigenvalue problem for sign-definite multiplicative perturbations of the Laplacian in a bounded domain. We show that all but finitely many complex transmission eigenvalues are confined to a parabolic neighborhood of the positive real axis.

  9. Independent Inventors: An Uncertain Future

    E-Print Network [OSTI]

    Pi, Xiaoqing

    2013-01-01

    https://www.eff.org/patent Inventors Alliance http://A.  Cotropia, “The Individual Inventor Motif in the Age of Title: Independent Inventors: An Uncertain Future Abstract:

  10. Impact of Distributed Wind on Bulk Power System Operations in ISO-NE (Presentation)

    SciTech Connect (OSTI)

    Brancucci Martinez-Anido, C.; Hodge, B. M.; Palchak, D.; Miettinen, J.

    2014-11-01

    The work presented in the paper corresponding to this presentation aims to study the impact of a range of penetration levels of distributed wind on the operation of the electric power system at the transmission level. This presentation is an overview of a case study on the power system in Independent System Operator New England. It is analyzed using PLEXOS, a commercial power system simulation tool

  11. Independent Energy Systems IES | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EA JumpDuimen RiverScoringUtilitiesRenovInceisa SA JumpSwarmThroughIES

  12. Independent Power Systems | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EA JumpDuimen RiverScoringUtilitiesRenovInceisa SA

  13. California Independent System Operator | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmentalBowerbank, Maine:Kansas: EnergyCalendarCalhounWebpage |Open Energy

  14. A Review of the Monitoring of Market Power The Possible Roles of TSOs in Monitoring for Market Power Issues in Congested Transmission Systems

    E-Print Network [OSTI]

    Twomey, Paul; Green, Richard J.; Neuhoff, Karsten; Newbery, David

    2006-03-14

    the world. The development of electricity market monitoring has varied across nations. In most cases of market deregulation, the focus of the various participants has been on developing the operational systems, particularly the hardware, software...

  15. EIS-0256: Sierra Pacific Power Company Alturas Transmission Line Project (adopted from BLM)

    Broader source: Energy.gov [DOE]

    This EIS evaluates the environmental setting and consequences of the construction and operation of the proposal Alturas Transmission Line Project. Sierra Pacific Power Company (SPPCO) has proposed this electric power transmission line to improve the existing operational capacity and reliability of its power transmission system and provide for anticipated growth in demand for electric power.

  16. Transmission Design at the National Level: Benefits, Risks and Possible Paths Forward

    E-Print Network [OSTI]

    Electric Energy System #12;Transmission Design at the National Level: Benefits, Risks and Possible Paths Electricity Coordinating Council (WECC) Dale Osborn, Consulting Advisor, Transmission Management, MidwestTransmission Design at the National Level: Benefits, Risks and Possible Paths Forward Future Grid

  17. An empirical study of the economies of scale in AC transmission line construction costs

    E-Print Network [OSTI]

    Baldick, Ross

    monopoly status of the electric transmission system as a natural monopoly. The purpose of this paper1 An empirical study of the economies of scale in AC transmission line construction costs Krishnan of transmission projects completed between the years 1994 and 2000. We examine the economies of scale in the cost

  18. Even-odd oscillation and valley polarization of transmission between multilayer graphenes

    SciTech Connect (OSTI)

    Nakanishi, Takeshi; Ando, Tsuneya

    2013-12-04

    Electron transmission through a boundary between multi-layer graphenes with Bernal stacking consisting of different number of layers is studied. A valley polarization in transmission probability appears as in monolayer and bilayer systems, exhibits considerable oscillation depending of even or odd layer numbers, and its amplitude gradually decreases with the layer number. The total transmission shows oscillation with much smaller amplitude.

  19. Reinforcing Power Grid Transmission with FACTS Devices

    E-Print Network [OSTI]

    Frolov, Vladimir; Chertkov, Misha

    2013-01-01

    We explore optimization methods for planning the placement, sizing and operations of Flexible Alternating Current Transmission System (FACTS) devices installed into the grid to relieve congestion created by load growth or fluctuations of intermittent renewable generation. We limit our selection of FACTS devices to those that can be represented by modification of the inductance of the transmission lines. Our master optimization problem minimizes the $l_1$ norm of the FACTS-associated inductance correction subject to constraints enforcing that no line of the system exceeds its thermal limit. We develop off-line heuristics that reduce this non-convex optimization to a succession of Linear Programs (LP) where at each step the constraints are linearized analytically around the current operating point. The algorithm is accelerated further with a version of the cutting plane method greatly reducing the number of active constraints during the optimization, while checking feasibility of the non-active constraints post...

  20. The Cost of Transmission for Wind Energy: A Review of Transmission Planning Studies

    E-Print Network [OSTI]

    Mills, Andrew D.

    2009-01-01

    DOE). 2006. National Electric Transmission Congestion Study.Division. 2003. Electric Transmission Plan for RenewableIdentifying Minnesota’s Electric Transmission Infrastructure

  1. A CRITICAL REVIEW OF WIND TRANSMISSION COST ESTIMATES FROM MAJOR TRANSMISSION PLANNING EFFORTS

    E-Print Network [OSTI]

    Mills, Andrew; Wiser, Ryan; Porter, Kevin

    2007-01-01

    Generation Outlet Electric Transmission Study. May.Identifying Minnesota’s Electric Transmission InfrastructureGeneration Outlet Electric Transmission Study Xcel-31A

  2. The Cost of Transmission for Wind Energy: A Review of Transmission Planning Studies

    E-Print Network [OSTI]

    Mills, Andrew D.

    2009-01-01

    Certificates of Need for Transmission Lines to Support theand Preference in Transmission Service. ” Washington, D.C. :Integrating Wind into Transmission Planning: The Rocky

  3. Fact #850: December 8, 2014 Automatic Transmissions have closed the Fuel Economy Gap with Manual Transmissions

    Broader source: Energy.gov [DOE]

    Historically, manual transmissions have delivered better fuel economy than automatic transmissions. However, improvements in the efficiency of automatic transmissions have closed that gap in recent...

  4. The Cost of Transmission for Wind Energy: A Review of Transmission Planning Studies

    E-Print Network [OSTI]

    Mills, Andrew D.

    2009-01-01

    additional transmission costs to new electricity generators,additional transmission costs to new electricity generators,Electricity Coordinating Council / California - 13 transmission

  5. Unbundling generation and transmission services for competitive electricity markets

    SciTech Connect (OSTI)

    Hirst, E.; Kirby, B.

    1998-01-01

    Ancillary services are those functions performed by the equipment and people that generate, control, and transmit electricity in support of the basic services of generating capacity, energy supply, and power delivery. The Federal Energy Regulatory Commission (FERC) defined such services as those `necessary to support the transmission of electric power from seller to purchaser given the obligations of control areas and transmitting utilities within those control areas to maintain reliable operations of the interconnected transmission system.` The nationwide cost of ancillary services is about $12 billion a year, roughly 10% of the cost of the energy commodity. More important than the cost, however, is the necessity of these services for bulk-power reliability and for the support of commercial transactions. FERC`s landmark Order 888 included a pro forma tariff with provision for six key ancillary services. The Interconnected Operations Services Working Group identified another six services that it felt were essential to the operation of bulk-power systems. Several groups throughput the United States have created or are forming independent system operators, which will be responsible for reliability and commerce. To date, the electricity industry (including traditional vertically integrated utilities, distribution utilities, power markets and brokers, customers, and state and federal regulators) has paid insufficient attention to these services. Although the industry had made substantial progress in identifying and defining the key services, much remains to be doe to specify methods to measure the production, delivery, and consumption of these services; to identify the costs and cost-allocation factors for these services; and to develop market and operating rules for their provision and pricing. Developing metrics, determining costs, and setting pricing rules are important because most of these ancillary services are produced by the same pieces of equipment that produce the basic electricity commodity. Thus, the production of energy and ancillary services is highly interactive, sometimes complementary and sometimes competing. In contrast to today`s typical time-invariant, embedded-cost prices, competitive prices for ancillary services would vary with system loads and spot prices for energy.

  6. Ponderomotive phase plate for transmission electron microscopes

    DOE Patents [OSTI]

    Reed, Bryan W. (Livermore, CA)

    2012-07-10

    A ponderomotive phase plate system and method for controllably producing highly tunable phase contrast transfer functions in a transmission electron microscope (TEM) for high resolution and biological phase contrast imaging. The system and method includes a laser source and a beam transport system to produce a focused laser crossover as a phase plate, so that a ponderomotive potential of the focused laser crossover produces a scattering-angle-dependent phase shift in the electrons of the post-sample electron beam corresponding to a desired phase contrast transfer function.

  7. Great Plains Wind Energy Transmission Development Project

    SciTech Connect (OSTI)

    Brad G. Stevens, P.E.; Troy K. Simonsen; Kerryanne M. Leroux

    2012-06-09

    In fiscal year 2005, the Energy & Environmental Research Center (EERC) received funding from the U.S. Department of Energy (DOE) to undertake a broad array of tasks to either directly or indirectly address the barriers that faced much of the Great Plains states and their efforts to produce and transmit wind energy at the time. This program, entitled Great Plains Wind Energy Transmission Development Project, was focused on the central goal of stimulating wind energy development through expansion of new transmission capacity or development of new wind energy capacity through alternative market development. The original task structure was as follows: Task 1 - Regional Renewable Credit Tracking System (later rescoped to Small Wind Turbine Training Center); Task 2 - Multistate Transmission Collaborative; Task 3 - Wind Energy Forecasting System; and Task 4 - Analysis of the Long-Term Role of Hydrogen in the Region. As carried out, Task 1 involved the creation of the Small Wind Turbine Training Center (SWTTC). The SWTTC, located Grand Forks, North Dakota, consists of a single wind turbine, the Endurance S-250, on a 105-foot tilt-up guyed tower. The S-250 is connected to the electrical grid on the 'load side' of the electric meter, and the power produced by the wind turbine is consumed locally on the property. Establishment of the SWTTC will allow EERC personnel to provide educational opportunities to a wide range of participants, including grade school through college-level students and the general public. In addition, the facility will allow the EERC to provide technical training workshops related to the installation, operation, and maintenance of small wind turbines. In addition, under Task 1, the EERC hosted two small wind turbine workshops on May 18, 2010, and March 8, 2011, at the EERC in Grand Forks, North Dakota. Task 2 involved the EERC cosponsoring and aiding in the planning of three transmission workshops in the midwest and western regions. Under Task 3, the EERC, in collaboration with Meridian Environmental Services, developed and demonstrated the efficacy of a wind energy forecasting system for use in scheduling energy output from wind farms for a regional electrical generation and transmission utility. With the increased interest at the time of project award in the production of hydrogen as a critical future energy source, many viewed hydrogen produced from wind-generated electricity as an attractive option. In addition, many of the hydrogen production-related concepts involve utilization of energy resources without the need for additional electrical transmission. For this reason, under Task 4, the EERC provided a summary of end uses for hydrogen in the region and focused on one end product in particular (fertilizer), including several process options and related economic analyses.

  8. Platform-independent method for computer aided schematic drawings

    DOE Patents [OSTI]

    Vell, Jeffrey L. (Slingerlands, NY); Siganporia, Darius M. (Clifton Park, NY); Levy, Arthur J. (Fort Lauderdale, FL)

    2012-02-14

    A CAD/CAM method is disclosed for a computer system to capture and interchange schematic drawing and associated design information. The schematic drawing and design information are stored in an extensible, platform-independent format.

  9. High resolution transmission electron microscopic in-situ observations of plastic deformation of compressed nanocrystalline gold

    SciTech Connect (OSTI)

    Wang, Guoyong; Lian, Jianshe; Jiang, Qing; Sun, Sheng; Zhang, Tong-Yi

    2014-09-14

    Nanocrystalline (nc) metals possess extremely high strength, while their capability to deform plastically has been debated for decades. Low ductility has hitherto been considered an intrinsic behavior for most nc metals, due to the lack of five independent slip systems actively operating during deformation in each nanograin. Here we report in situ high resolution transmission electron microscopic (HRTEM) observations of deformation process of nc gold under compression, showing the excellent ductility of individual and aggregate nanograins. Compression causes permanent change in the profile of individual nanograins, which is mediated by dislocation slip and grain rotation. The high rate of grain boundary sliding and large extent of widely exited grain rotation may meet the boundary compatibility requirements during plastic deformation. The in situ HRTEM observations suggest that nc gold is not intrinsically brittle under compressive loading.

  10. RAPID/BulkTransmission/Transmission Siting & Interconnection | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsourceBulkTransmission/Environment/Nevada < RAPID‎RAPID/BulkTransmission/Site Considerations <

  11. Two-particle quantum transmission

    E-Print Network [OSTI]

    Ron Folman

    2012-11-25

    Two-photon interference is a fundamental phenomenon in quantum mechanics and stands at the base of numerous experimental observations. Here another manifestation of this phenomenon is described, taking place at a Y junction. Specifically it is shown how the r^2+t^2 term which is behind previous observations of two-photon interference, may give rise to different states at a beam-splitter and different two-particle transmission coefficients at a Y junction. Different from previous descriptions of quantum transmission based on one-particle physics, the enhanced transmission described here is due to two-particle physics.

  12. The Cost of Transmission for Wind Energy: A Review of Transmission Planning Studies

    E-Print Network [OSTI]

    Mills, Andrew D.

    2009-01-01

    building transmission to meet peak wind conditions during peak transmission usage periods, and the magnitude of curtailment may be small

  13. Lens transmission measurement for an absolute radiation thermometer

    SciTech Connect (OSTI)

    Hao, X.; Yuan, Z.; Lu, X.

    2013-09-11

    The lens transmission for the National Institute of Metrology of China absolute radiation thermometer is measured by a hybrid method. The results of the lens transmission measurements are 99.002% and 86.792% for filter radiometers with center wavelengths 633 nm and 900 nm, respectively. These results, after correcting for diffraction factors and the size-of-source effect when the lens is incorporated within the radiometer, can be used for measurement of thermodynamic temperature. The expanded uncertainty of the lens transmission measurement system has been evaluated. It is 1.3×10{sup ?3} at 633 nm and 900 nm, respectively.

  14. Transmission eigenvalue distributions in highly conductive molecular junctions

    E-Print Network [OSTI]

    Bergfield, Justin P; Barr, Joshua D; Stafford, Charles A

    2012-01-01

    Transmission eigenvalue distributions in highly conductivesingle-molecule junction; transmission eigenchannels Openuniquely characterized by its transmission eigenvalues ? n .

  15. Pulse transmission transmitter including a higher order time derivate filter

    DOE Patents [OSTI]

    Dress, Jr., William B.; Smith, Stephen F.

    2003-09-23

    Systems and methods for pulse-transmission low-power communication modes are disclosed. A pulse transmission transmitter includes: a clock; a pseudorandom polynomial generator coupled to the clock, the pseudorandom polynomial generator having a polynomial load input; an exclusive-OR gate coupled to the pseudorandom polynomial generator, the exclusive-OR gate having a serial data input; a programmable delay circuit coupled to both the clock and the exclusive-OR gate; a pulse generator coupled to the programmable delay circuit; and a higher order time derivative filter coupled to the pulse generator. The systems and methods significantly reduce lower-frequency emissions from pulse transmission spread-spectrum communication modes, which reduces potentially harmful interference to existing radio frequency services and users and also simultaneously permit transmission of multiple data bits by utilizing specific pulse shapes.

  16. Measuring photometric and spectral radiometric bi-directional transmission and reflection in a video-goniospectrometer

    E-Print Network [OSTI]

    Stokes, Eleanor (Eleanor Catherine)

    2008-01-01

    The effective use of complex fenestration systems (CFS) in buildings requires a detailed knowledge of their optical spectral and directional properties. Bidirectional scattering functions (BSDFs), either in transmission ...

  17. 21 2008, 12:00, Idle Gear Rattle in Manual Automotive Transmissions

    E-Print Network [OSTI]

    Psarrakos, Panayiotis

    21 2008, 12:00, , (). Idle Gear Rattle in Manual Automotive Transmissions) phenomena in Automotive Powertrain Systems, dynamic analysis of medical devices and virtual prototype

  18. IEAB Independent Economic Analysis Board

    E-Print Network [OSTI]

    . Huppert Noelwah R. Netusil JunJie Wu Cost-Effectiveness of Fish Tagging Technologies and Programs in the Columbia River Basin1 Independent Economic Analysis Board Fish and Wildlife Program Northwest Power and Conservation Council June 2, 2013 1 This report benefitted from the meetings of the Fish Tagging Forum

  19. IEAB Independent Economic Analysis Board

    E-Print Network [OSTI]

    would be most cost effective when electricity prices are high. Further, reduced pumping in dry years be tailored to respond to contingencies such as electricity price surges and unusually dry weather. Inclusion of Instream Water Supply Components of the Salmon Creek Project Independent Economic Analysis Board Northwest

  20. Transmission Services Product Pricing Validation

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    and 09:00 PPT on the above effective date. On October 15, 2013, at 08:00 (PPT), Transmission Services will be updating the OASIS default product prices to reflect the 2014...

  1. Transmission Services Product Pricing Validation

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    and 12:00 PPT on the above effective date. On October 1, 2015, at 11:00 (PPT), Transmission Services will be updating the OASIS default product prices to reflect the 2016...

  2. TRANSMISSION AND GENERATION INVESTMENT IN ...

    E-Print Network [OSTI]

    2015-03-04

    Mar 4, 2015 ... generation capacity by private firms in liberalized electricity markets. ... Electricity Markets, Network Expansion, Transmission Management. 1 ...... renewables: Using two-stage optimisation to evaluate flexibility and the cost of.

  3. Immunology of naturally transmissible tumours

    E-Print Network [OSTI]

    Siddle, Hannah V.; Kaufman, Jim

    2014-09-04

    understanding of the vertebrate immune response to allografts. Two naturally occurring contagious cancers are currently active in the animal kingdom, Canine Transmissible Venereal Tumour (CTVT) that spreads among dogs and Devil Facial Tumour Disease (DFTD) among...

  4. 2009 National Electric Transmission Congestion Study | Department...

    Energy Savers [EERE]

    Congestion Studies 2009 National Electric Transmission Congestion Study 2009 National Electric Transmission Congestion Study Section 216(a) of the Federal Power Act, as amended...

  5. 2006 National Electric Transmission Congestion Study Federal...

    Office of Environmental Management (EM)

    6 National Electric Transmission Congestion Study Federal Register Notice & Comments 2006 National Electric Transmission Congestion Study Federal Register Notice & Comments The...

  6. 2006 National Electric Transmission Congestion Study | Department...

    Office of Environmental Management (EM)

    6 National Electric Transmission Congestion Study 2006 National Electric Transmission Congestion Study Section 216(a) of the Federal Power Act, as amended by the Energy Policy Act...

  7. Interconnection-Wide Transmission Planning Initiative: Topic...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    State Agency Input Regarding Electric Resource and Transmission Planning in the Texas Interconnection Interconnection-Wide Transmission Planning Initiative: Topic B, State Agency...

  8. Exploring the Business Link Opportunity: Transmission & Clean...

    Office of Environmental Management (EM)

    Exploring the Business Link Opportunity: Transmission & Clean Energy Development in the West Exploring the Business Link Opportunity: Transmission & Clean Energy Development in the...

  9. Transmission Line MTF: Magnetized Target Fusion

    E-Print Network [OSTI]

    Transmission Line MTF: Magnetized Target Fusion Initial target: preheated & magnetized Subsequent for the FRC. Abstract Block Diagram theta coil transmission line Bias cap. bank maincapacitor inductor PI cap

  10. Transmission Reassignment Reporting Requirement - April 2, 2014

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Interconnection Notices Rates Standards of Conduct Tariff TF Web Based Training Transmission Reassignment Reporting Requirement This notice serves as a reminder to transmission...

  11. Transmission/Nepa Database | Open Energy Information

    Open Energy Info (EERE)

    Nepa Database < Transmission Jump to: navigation, search NepaHeader.png Transmission Dashboard Permitting Atlas Compare States Arizona California Colorado Idaho Montana Nevada New...

  12. Transmission Eigenvalues in Inverse Scattering Theory

    E-Print Network [OSTI]

    Title: Transmission Eigenvalues in Inverse Scattering Theory Abstract: The transmission eigenvalue problem is a new class of eigenvalue problems that has

  13. WEYL ASYMPTOTICS OF THE TRANSMISSION EIGENVALUES ...

    E-Print Network [OSTI]

    2014-09-02

    plex internal transmission eigenvalues when the domain is a ball and the index ... formulas for the counting function of the real Interior Transmission Eigenvalues.

  14. Non-Utility Generation and Transmission Access in Texas 

    E-Print Network [OSTI]

    Panjavan, S.; Adib, P.

    1993-01-01

    . The lack of transmission access clearly restricted IPPs' ability to compete in the power supply market. In the Energy Policy Act of 1992, the first impediment was eliminated by amending the PUHCA to allow IPPs to operate facilities without coming...-UTILITY GENERATION AND TRANSMISSION ACCESS IN TEXAS' Sarut Panjavan Senior Power Systems Engineer Public Utility Commission ofTexas Austin, Texas ABSTRACT Power from non-utility generators (NUG) is an important part of the generation mix in Texas...

  15. EIS-0451: Hooper Springs Transmission Project, Caribou County, Idaho

    Broader source: Energy.gov [DOE]

    DOE’s Bonneville Power Administration (BPA) prepared an EIS that evaluates the potential environmental impacts of a proposed new 115-kilovolt (kV) transmission line from BPA's proposed Hooper Springs Substation near Soda Springs, Idaho, to either an existing Lower Valley Energy (LVE) substation or a proposed BPA connection with LVE's existing transmission system in northeastern Caribou County. Additional information is available at http://efw.bpa.gov/environmental_services/Document_Library/HooperSprings/.

  16. Integration and Independent Innovation on a Network

    E-Print Network [OSTI]

    Farrell, Joseph

    2012-01-01

    Integration and Independent Innovation on a Network JosephKeywords: telecom networks, innovation, competition, accesspoint of monopoly. Innovation thrives with many independent

  17. Independent Oversight Review, Los Alamos National Laboratory...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    December 2011 Independent Oversight Review, Los Alamos National Laboratory - December 2011 December 2011 Review of the Independent Integrated Safety ManagementIntegrated Work...

  18. 2012 Independent Communication and Outreach Stakeholder Satisfaction...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    2 Independent Communication and Outreach Stakeholder Satisfaction Survey 2012 Independent Communication and Outreach Stakeholder Satisfaction Survey DOE-LM periodically surveys its...

  19. Independent Oversight Focused Program Review, Argonne National...

    Energy Savers [EERE]

    Independent Oversight Focused Program Review, Argonne National Laboratory-West - May 2001 Independent Oversight Focused Program Review, Argonne National Laboratory-West - May 2001...

  20. Independent Oversight Investigation, Hanford Site - April 2004...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Independent Oversight Investigation, Hanford Site - April 2004 Independent Oversight Investigation, Hanford Site - April 2004 April 2004 Investigation of Worker Vapor Exposure and...

  1. Independent Activity Report, Richland Operations Office - June...

    Office of Environmental Management (EM)

    Independent Activity Report, Richland Operations Office - June 2011 June 2011 Hanford Sludge Treatment Project Review HIAR-RL-2011-06-17 This Independent Activity Report...

  2. Perspectives on the United States Health Care System by International students from the newly independent states of the former Soviet Union and a comparison of former Soviet countries' and the United States Health Care Systems 

    E-Print Network [OSTI]

    Leuenberger, Larissa Diane

    2013-02-22

    The purpose of this study was to establish baseline data from international students regarding health care system perspectives, access, barriers, and utilization. International students bring preconceived ideas regarding health care based...

  3. Model-independent particle accelerator tuning

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Scheinker, Alexander; Pang, Xiaoying; Rybarcyk, Larry

    2013-10-21

    We present a new model-independent dynamic feedback technique, rotation rate tuning, for automatically and simultaneously tuning coupled components of uncertain, complex systems. The main advantages of the method are: 1) It has the ability to handle unknown, time-varying systems, 2) It gives known bounds on parameter update rates, 3) We give an analytic proof of its convergence and its stability, and 4) It has a simple digital implementation through a control system such as the Experimental Physics and Industrial Control System (EPICS). Because this technique is model independent it may be useful as a real-time, in-hardware, feedback-based optimization scheme formore »uncertain and time-varying systems. In particular, it is robust enough to handle uncertainty due to coupling, thermal cycling, misalignments, and manufacturing imperfections. As a result, it may be used as a fine-tuning supplement for existing accelerator tuning/control schemes. We present multi-particle simulation results demonstrating the scheme’s ability to simultaneously adaptively adjust the set points of twenty two quadrupole magnets and two RF buncher cavities in the Los Alamos Neutron Science Center Linear Accelerator’s transport region, while the beam properties and RF phase shift are continuously varying. The tuning is based only on beam current readings, without knowledge of particle dynamics. We also present an outline of how to implement this general scheme in software for optimization, and in hardware for feedback-based control/tuning, for a wide range of systems.« less

  4. Conductive Channel for Energy Transmission

    SciTech Connect (OSTI)

    Apollonov, Victor V. [A.M. Prokhorov General Physics Institute, Vavilov Str. 38, Moscow, 119991 (Russian Federation)

    2011-11-10

    For many years the attempts to create conductive channels of big length were taken in order to study the upper atmosphere and to settle special tasks, related to energy transmission. There upon the program of creation of 'Impulsar' represents a great interest, as this program in a combination with high-voltage high repetition rate electrical source can be useful to solve the above mentioned problems (N. Tesla ideas for the days of high power lasers). The principle of conductive channel production can be shortly described as follows. The 'Impulsar' - laser jet engine vehicle - propulsion take place under the influence of powerful high repetition rate pulse-periodic laser radiation. In the experiments the CO{sub 2}-laser and solid state Nd:YAG laser systems had been used. Active impulse appears thanks to air breakdown (<30 km) or to the breakdown of ablated material on the board (>30 km), placed in the vicinity of the focusing mirror-acceptor of the breakdown waves. With each pulse of powerful laser the device rises up, leaving a bright and dense trace of products with high degree of ionization and metallization by conductive nano-particles due to ablation. Conductive dust plasma properties investigation in our experiments was produced by two very effective approaches: high power laser controlled ablation and by explosion of wire. Experimental and theoretical results of conductive canal modeling will be presented. The estimations show that with already experimentally demonstrated figures of specific thrust impulse the lower layers of the Ionosphere can be reached in several ten seconds that is enough to keep the high level of channel conductivity and stability with the help of high repetition rate high voltage generator. Some possible applications for new technology are highlighted.

  5. Envisioning Transmission Transition: Denmark’s Incremental Shifts Towards Energy Independence

    E-Print Network [OSTI]

    Cote, Michael

    2010-01-01

    energy grid and new technology economies, Denmark has invested billions in architectural efficiency, integrated pedestrian/bike/vehicular design, and urban planning

  6. Envisioning Transmission Transition: Denmark’s Incremental Shifts Towards Energy Independence

    E-Print Network [OSTI]

    Cote, Michael

    2010-01-01

    fuel types such as wood pellets, natural gas, straw, andof natural gas, straw, wood pellets, and other bio fuels.

  7. Envisioning Transmission Transition: Denmark’s Incremental Shifts Towards Energy Independence

    E-Print Network [OSTI]

    Cote, Michael

    2010-01-01

    abandoning its dirty, aging coal fired plants, Denmark hasthat three older coal fired power plants be decommissioned.

  8. Notice of Intent to Revise DOE G 414.1-1B, Management and Independent Assessments Guide for Use with 10 CFR, Part 830, Subpart A, and DOE O 414.1C, Quality Assurance; DOE M 450.4-1, Integrated Safety Management System Manual; and DOE O 226.1A

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2013-04-18

    This memorandum provides justification for revising DOE G 414.1-1B, Management and Independent Assessments Guide for Use With 10 CFR, Part 830, Subpart A, and DOE O 414.1C, Quality Assurance; DOE M 450.4-1, Integrated Safety Management System Manual; and DOE O 226.1A, Implementation of Department of Energy Oversight Policy.

  9. TRANSMISSION EIGENVALUES LASSI PAIVARINTA AND JOHN SYLVESTER

    E-Print Network [OSTI]

    Sylvester, John

    TRANSMISSION EIGENVALUES LASSI P¨AIV¨ARINTA AND JOHN SYLVESTER Abstract. The scattering of a time. A transmission eigenvalue is a wavenumber at which the scattering operator has a non-trivial kernel or cokernel that are not transmission eigenvalues, they have been studied for some time. Nevertheless, the existence of transmission

  10. Social barriers to pathogen transmission in wild animal populations

    SciTech Connect (OSTI)

    Loehle, C.

    1995-03-01

    Diseases and pathogens are receiving increasing recognition as sources of mortality in animal populations. Immune system strength is clearly important in fending off pathogen attack. Physical barriers to pathogen entry are also important. Various individual behaviors are efficacious in reducing contact with diseases and pests. This paper focuses on a fourth mode of defense: social barriers to transmission. Various social behaviors have pathogen transmission consequences. Selective pressures on these social behaviors may therefore exist. Effects on pathogen transmission of mating strategies, social avoidance, group size, group isolation, and other behaviors are explored. It is concluded that many of these behaviors may have been affected by selection pressures to reduce transmission of pathogens. 84 refs., 1 tab.

  11. Prudent behaviour accelerates disease transmission

    E-Print Network [OSTI]

    Scarpino, Samuel V; Hebert-Dufresne, Laurent

    2015-01-01

    Infectious diseases often spread faster near their peak than would be predicted given early data on transmission. Despite the commonality of this phenomena, there are no known general mechanisms able to cause an exponentially spreading dis- ease to begin spreading faster. Indeed most features of real world social networks, e.g. clustering1,2 and community structure3, and of human behaviour, e.g. social distancing4 and increased hygiene5, will slow disease spread. Here, we consider a model where individuals with essential societal roles-e.g. teachers, first responders, health-care workers, etc.- who fall ill are replaced with healthy individuals. We refer to this process as relational exchange. Relational exchange is also a behavioural process, but one whose effect on disease transmission is less obvious. By incorporating this behaviour into a dynamic network model, we demonstrate that replacing individuals can accelerate disease transmission. Furthermore, we find that the effects of this process are trivial w...

  12. DRAFT Parker-Davis Transmission System

    Broader source: Energy.gov (indexed) [DOE]

    County Approved 62013; Environmental review Construction and maintenance of a 350-MW photovoltaic solar facility, generation line, and associated facilities Reasonably...

  13. Registration Contact List: Electricity Transmission System Workshop

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i nAandSummary From: v2.7 Multiple Defrost Waiver MoreInstead ofManagement2/2012

  14. American Transmission Systems Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowaWisconsin: EnergyYork Jump to:Hempstead Biomass FacilityAmerican

  15. Indistinguishability of independent single photons

    E-Print Network [OSTI]

    F. W. Sun; C. W. Wong

    2009-02-02

    The indistinguishability of independent single photons is presented by decomposing the single photon pulse into the mixed state of different transform limited pulses. The entanglement between single photons and outer environment or other photons induces the distribution of the center frequencies of those transform limited pulses and makes photons distinguishable. Only the single photons with the same transform limited form are indistinguishable. In details, the indistinguishability of single photons from the solid-state quantum emitter and spontaneous parametric down conversion is examined with two-photon Hong-Ou-Mandel interferometer. Moreover, experimental methods to enhance the indistinguishability are discussed, where the usage of spectral filter is highlighted.

  16. The role of transmission investment in the coordination between generation and transmission

    E-Print Network [OSTI]

    Boyer, Edmond

    1 The role of transmission investment in the coordination between generation and transmission Abstract This paper examines how transmission coordinates with generation to the long term in a liberalized generation and transmission of electricity into distinct modules. The governance structure of transmission

  17. Power superconducting power transmission cable

    DOE Patents [OSTI]

    Ashworth, Stephen P. (Cambridge, GB)

    2003-01-01

    The present invention is for a compact superconducting power transmission cable operating at distribution level voltages. The superconducting cable is a conductor with a number of tapes assembled into a subconductor. These conductors are then mounted co-planarly in an elongated dielectric to produce a 3-phase cable. The arrangement increases the magnetic field parallel to the tapes thereby reducing ac losses.

  18. Pulse transmission receiver with higher-order time derivative pulse correlator

    DOE Patents [OSTI]

    Dress, Jr., William B.; Smith, Stephen F.

    2003-09-16

    Systems and methods for pulse-transmission low-power communication modes are disclosed. A pulse transmission receiver includes: a higher-order time derivative pulse correlator; a demodulation decoder coupled to the higher-order time derivative pulse correlator; a clock coupled to the demodulation decoder; and a pseudorandom polynomial generator coupled to both the higher-order time derivative pulse correlator and the clock. The systems and methods significantly reduce lower-frequency emissions from pulse transmission spread-spectrum communication modes, which reduces potentially harmful interference to existing radio frequency services and users and also simultaneously permit transmission of multiple data bits by utilizing specific pulse shapes.

  19. The Cost of Transmission for Wind Energy: A Review of Transmission Planning Studies

    E-Print Network [OSTI]

    Mills, Andrew D.

    2009-01-01

    in Transmission Service. ” Washington, D.C. : Federal EnergyNational Transmission Grid Study. Washington, D.C. : U.S.California Transmission Options Study NTAC - 2A Submarine DC

  20. Abstract--Under the need for anticipatory efficient investment in transmission, several problems arise at the regulation and

    E-Print Network [OSTI]

    Catholic University of Chile (Universidad Católica de Chile)

    electricity market. Index Terms--Transmission planning, transmission investment, regulation, additional lines electric system. Without anticipatory investment, the net number of lines in the long term may1 Abstract--Under the need for anticipatory efficient investment in transmission, several problems

  1. Copyright 2008 IEEE. Reprinted from Lin Xu, Student Member, IEEE, and Ross Baldick, Fellow, IEEE. "Transmission-Constrained Residual Demand

    E-Print Network [OSTI]

    . "Transmission-Constrained Residual Demand Derivative in Electricity Markets." IEEE Transactions on Power Systems Transmission-Constrained Residual Demand Derivative in Electricity Markets Lin Xu, Student Member, IEEE function with respect to price. However, in an electricity market, the market is embedded in a transmission

  2. Energy Aware Power Allocation strategies for Multihop-Cooperative transmission schemes

    E-Print Network [OSTI]

    Spagnolini, Umberto

    1 Energy Aware Power Allocation strategies for Multihop-Cooperative transmission schemes S. Savazzi nodes are able to relay their packets. Designing multihop routing strategy together with energy scheme is known to be an energy aware strategy that allocate the power on each independent hop according

  3. AN ARTIFICIAL NEURAL NETWORK BASED TRANSMISSION LOSS ALLOCATION FOR BILATERAL CONTRACTS

    E-Print Network [OSTI]

    Saskatchewan, University of

    . Introduction Many bulk power consumers enter into bilateral contracts with power producers or suppliers, therefore, has to produce enough power to meet its contracted load and the corresponding transmission loss. In some jurisdictions, the independent market operators buy power from spot market to compensate

  4. The Role of Demand Resources In Regional Transmission Expansion Planning and Reliable Operations

    SciTech Connect (OSTI)

    Kirby, Brendan J

    2006-07-01

    Investigating the role of demand resources in regional transmission planning has provided mixed results. On one hand there are only a few projects where demand response has been used as an explicit alternative to transmission enhancement. On the other hand there is a fair amount of demand response in the form of energy efficiency, peak reduction, emergency load shedding, and (recently) demand providing ancillary services. All of this demand response reduces the need for transmission enhancements. Demand response capability is typically (but not always) factored into transmission planning as a reduction in the load which must be served. In that sense demand response is utilized as an alternative to transmission expansion. Much more demand response is used (involuntarily) as load shedding under extreme conditions to prevent cascading blackouts. The amount of additional transmission and generation that would be required to provide the current level of reliability if load shedding were not available is difficult to imagine and would be impractical to build. In a very real sense demand response solutions are equitably treated in every region - when proposed, demand response projects are evaluated against existing reliability and economic criteria. The regional councils, RTOs, and ISOs identify needs. Others propose transmission, generation, or responsive load based solutions. Few demand response projects get included in transmission enhancement plans because few are proposed. But this is only part of the story. Several factors are responsible for the current very low use of demand response as a transmission enhancement alternative. First, while the generation, transmission, and load business sectors each deal with essentially the same amount of electric power, generation and transmission companies are explicitly in the electric power business but electricity is not the primary business focus of most loads. This changes the institutional focus of each sector. Second, market and reliability rules have, understandably, been written around the capabilities and limitations of generators, the historic reliability resources. Responsive load limitations and capabilities are often not accommodated in markets or reliability criteria. Third, because of the institutional structure, demand response alternatives are treated as temporary solutions that can delay but not replace transmission enhancement. Financing has to be based on a three to five year project life as opposed to the twenty to fifty year life of transmission facilities. More can be done to integrate demand response options into transmission expansion planning. Given the societal benefits it may be appropriate for independent transmission planning organizations to take a more proactive role in drawing demand response alternatives into the resource mix. Existing demand response programs provide a technical basis to build from. Regulatory and market obstacles will have to be overcome if demand response alternatives are to be routinely considered in transmission expansion planning.

  5. Control device of an infinitely variable transmission

    SciTech Connect (OSTI)

    Tanaka, H.

    1987-01-27

    An automatic control system is described for a toric type infinitely variable transmission of a running vehicle, the speed of which is changed by varying a gear ratio corresponding to a running mode of the vehicle selected by a driver. The transmission comprises coaxially disposed input and output shafts with input and output disks having toroidal surfaces and respectively secured to the input and output shafts, a traction roller engaged with the toroidal surfaces of the disks, and a trunnion rotatably supporting the traction roller on a rotary shaft. The trunnion is linearly movable in the direction of a pivot axis which is perpendicular to the rotary shaft of the traction roller and is pivotable around the pivot axis so that the gear ratio between the input shaft and the output shaft may be changed. The control system comprises: a hydraulic cylinder receiving an axial end of the trunnion; and a hydraulic circuit connecting the hydraulic cylinder with a hydraulic source, the hydraulic circuit including a solenoid valve. The valve has means for repeatedly opening and closing the valve at predetermined intervals and controlling hydraulic supply to the hydraulic cylinder and thereby controlling the linear movement of the trunnion in the direction of the pivot axis so as to vary the gear ratio.

  6. Puget Sound Area Electric Reliability Plan. Appendix E: Transmission Reinforcement Analysis : Draft Environmental Impact Statement.

    SciTech Connect (OSTI)

    United States. Bonneville Power Administration.

    1991-09-01

    Five transmission line options and several reactive (voltage support) options are presently being considered as possible solutions to the PSAERP by the Transmission Team. The first two line options would be built on new rights-of way adjacent (as much as possible) to existing corridors. The reactive options would optimize the existing transmission system capability by adding new stations for series capacitors and/or switchgear. The other three line options are rebuilds or upgrades of existing cross mountain transmission lines. These options are listed below and include a preliminary assessment of the additional transmission system reinforcement required to integrate the new facilities into the existing transmission system. These options were derived from earlier study work that was summarized in Puget Sound Reinforcement Transmission Options'' and New Cross Mountain Transmission Line Alternative: The Crosstie'', which are attached. The initial Transmission Options study report recognized the value to system performance of adding an entirely new circuit rather than rebuilding an existing one. However, siting realities require that rebuild options be considered. Typically, the most attractive rebuild options would be the lowest capacity (lowest voltage) circuits. But because of corridor location, length and terminal proximity, the rebuild options listed below appear to be the most promising. Schematic diagrams and QV Curves of each option are also attached. It should be noted that Snoqualmie and Echo Lake refer to the same station east of Puget Sound and Naneum and Kittitas refer to the same station in the Ellensburg area. 100 figs., 20 tabs.

  7. A CRITICAL REVIEW OF WIND TRANSMISSION COST ESTIMATES FROM MAJOR TRANSMISSION PLANNING EFFORTS

    E-Print Network [OSTI]

    Mills, Andrew; Wiser, Ryan; Porter, Kevin

    2007-01-01

    A CRITICAL REVIEW OF WIND TRANSMISSION COST ESTIMATES FROMof establishing a wind transmission cost adder with respectthat involve wind and divide the cost by the relative share

  8. A Formal Model of Auditor Independence Risk

    E-Print Network [OSTI]

    Turner, Jerry L.; Mock, Theodore J.; Srivastava, Rajendra P.

    2002-01-01

    Although the published literature on auditor independence is extensive, an accepted comprehensive theory, framework or model of auditor independence risk does not exist. This paper develops a formal model of auditor ...

  9. Independent Oversight Review, West Valley Demonstration Project...

    Office of Environmental Management (EM)

    Oversight Review, West Valley Demonstration Project Transportation - September 2000 Independent Oversight Review, West Valley Demonstration Project Transportation -...

  10. Independent Oversight Assessment, DOE Office of Environmental...

    Office of Environmental Management (EM)

    Assessment, Idaho Cleanup Project Sodium Bearing Waste Treatment Project - November 2012 Independent Oversight Assessment, Salt Waste Processing Facility Project - January...

  11. Small Wind Independent Testing (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-09-01

    This fact sheet describes the Small Wind Independent Testing at the NWTC and the Regional Test Centers project.

  12. Independent Oversight Review, West Valley Demonstration Project...

    Office of Environmental Management (EM)

    West Valley Demonstration Project Transportation - September 2000 Independent Oversight Review, West Valley Demonstration Project Transportation - September 2000 September 2000...

  13. Independent Oversight Review, National Nuclear Security Administration...

    Office of Environmental Management (EM)

    Nuclear Security Administration Production Office - February 2014 Independent Oversight Review, National Nuclear Security Administration Production Office - February 2014 February...

  14. History-Independent Cuckoo Hashing Udi Wieder

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    History-Independent Cuckoo Hashing Moni Naor Gil Segev Udi Wieder§ Abstract Cuckoo hashing significant improvements compared to other schemes. In this work we construct a practical history-independent dynamic dictionary based on cuckoo hashing. In a history-independent data structure, the memory

  15. Film/Literature Independent Study English 499

    E-Print Network [OSTI]

    Film/Literature Independent Study English 499 Syllabus Instructor: Office: Office phone: Email address: English Dept. Phone: 360-546-9441 Overview The goal of the Film/Literature Independent Study is to help students concentrate on a particular film or literary issue or topic. This independent study

  16. Giant vacuum forces via transmission lines

    E-Print Network [OSTI]

    Ephraim Shahmoon; Igor Mazets; Gershon Kurizki

    2014-07-23

    Quantum electromagnetic fluctuations induce forces between neutral particles, known as the van der Waals (vdW) and Casimir interactions. These fundamental forces, mediated by virtual photons from the vacuum, play an important role in basic physics and chemistry, and in emerging technologies involving, e.g. micro-electromechanical systems or quantum information processing. Here we show that these interactions can be enhanced by many orders of magnitude upon changing the character of the mediating vacuum-modes. By considering two polarizable particles in the vicinity of any standard electric transmission line, along which photons can propagate in one dimension (1d), we find a much stronger and longer-range interaction than in free-space. This enhancement may have profound implications on many-particle and bulk systems, and impact the quantum technologies mentioned above. The predicted giant vacuum force is estimated to be measurable in a coplanar waveguide line.

  17. Measurement-device-independent quantum cryptography

    E-Print Network [OSTI]

    Feihu Xu; Marcos Curty; Bing Qi; Hoi-Kwong Lo

    2015-01-07

    In theory, quantum key distribution (QKD) provides information-theoretic security based on the laws of physics. Owing to the imperfections of real-life implementations, however, there is a big gap between the theory and practice of QKD, which has been recently exploited by several quantum hacking activities. To fill this gap, a novel approach, called measurement-device-independent QKD (mdiQKD), has been proposed. It can remove all side-channels from the measurement unit, arguably the most vulnerable part in QKD systems, thus offering a clear avenue towards secure QKD realisations. Here, we review the latest developments in the framework of mdiQKD, together with its assumptions, strengths and weaknesses.

  18. Wireless power transmission for medical applications

    E-Print Network [OSTI]

    Payne, Joshua E.

    We studied the wireless power transmission capabilities of microwave through human skin-tissue. Microwave transmission through simulated human skins was tested with rectenna array as a power receiver located under the ...

  19. Transmission Expansion Planning with Re-design

    E-Print Network [OSTI]

    2010-05-17

    Expanding an electrical transmission network requires heavy investments that ... would be too complex to handle, electrical transmission and energy genera- ... Our new modelling introduces more flexibility and is general, in the sense that it ...

  20. Transmission

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCEDInstallers/ContractorsPhotovoltaicsState ofSavings forTitleJulyAmyDepartment ofMelissa~

  1. The relationship between small learning communities and student performance as identified by the Academic Excellence Indicator System at Robert E. Lee High School in North East Independent School District, San Antonio, Texas 

    E-Print Network [OSTI]

    Turnbo, Bobbie Jo

    2008-10-10

    TABLE Page 10 Number of Students (N), Mean Score, and Standard Deviation for Reading TAKS Scale Scores for Economically and Non- economically Disadvantaged Ninth Grade Students at Lee High School of the NEISD, San Antonio, Texas...? 10 3. What is the relationship between Small Learning Communities (SLC) and attendance and dropout rates at Robert E. Lee High School ninth grade academy in North East Independent School District as reported in the Academic Excellence Indicator...

  2. Analytic bounds on transmission probabilities

    E-Print Network [OSTI]

    Boonserm, Petarpa

    2009-01-01

    We develop some new analytic bounds on transmission probabilities (and the related reflection probabilities and Bogoliubov coefficients) for generic one-dimensional scattering problems. To do so we rewrite the Schrodinger equation for some complicated potential whose properties we are trying to investigate in terms of some simpler potential whose properties are assumed known, plus a (possibly large) "shift" in the potential. Doing so permits us to extract considerable useful information without having to exactly solve the full scattering problem.

  3. Energy Transmission | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum12, 2015 Infographic courtesyEducationNevadaSessionToo! |October 4,Transmission

  4. Average transmission probability of a random stack

    E-Print Network [OSTI]

    Yin Lu; Christian Miniatura; Berthold-Georg Englert

    2009-07-31

    The transmission through a stack of identical slabs that are separated by gaps with random widths is usually treated by calculating the average of the logarithm of the transmission probability. We show how to calculate the average of the transmission probability itself with the aid of a recurrence relation and derive analytical upper and lower bounds. The upper bound, when used as an approximation for the transmission probability, is unreasonably good and we conjecture that it is asymptotically exact.

  5. Transmission and Generation Investment in Electricity Markets

    E-Print Network [OSTI]

    Mar 4, 2015 ... Transmission and Generation Investment in Electricity Markets: The Effects of Market Splitting and Network Fee Regimes.

  6. Washington/Transmission | Open Energy Information

    Open Energy Info (EERE)

    Avista, Pacificorp, Puget Sound Energy, Tacoma Public Utilities, Bonneville Power Administration, Columbia Grid, Northern Tier Transmission Group, and Seattle City...

  7. Coiled transmission line pulse generators

    DOE Patents [OSTI]

    McDonald, Kenneth Fox (Columbia, MO)

    2010-11-09

    Methods and apparatus are provided for fabricating and constructing solid dielectric "Coiled Transmission Line" pulse generators in radial or axial coiled geometries. The pour and cure fabrication process enables a wide variety of geometries and form factors. The volume between the conductors is filled with liquid blends of monomers, polymers, oligomers, and/or cross-linkers and dielectric powders; and then cured to form high field strength and high dielectric constant solid dielectric transmission lines that intrinsically produce ideal rectangular high voltage pulses when charged and switched into matched impedance loads. Voltage levels may be increased by Marx and/or Blumlein principles incorporating spark gap or, preferentially, solid state switches (such as optically triggered thyristors) which produce reliable, high repetition rate operation. Moreover, these Marxed pulse generators can be DC charged and do not require additional pulse forming circuitry, pulse forming lines, transformers, or an a high voltage spark gap output switch. The apparatus accommodates a wide range of voltages, impedances, pulse durations, pulse repetition rates, and duty cycles. The resulting mobile or flight platform friendly cylindrical geometric configuration is much more compact, light-weight, and robust than conventional linear geometries, or pulse generators constructed from conventional components. Installing additional circuitry may accommodate optional pulse shape improvements. The Coiled Transmission Lines can also be connected in parallel to decrease the impedance, or in series to increase the pulse length.

  8. Puget Sound Area Electric Reliability Plan : Appendix E, Transmission Reinforcement Analysis.

    SciTech Connect (OSTI)

    United States. Bonneville Power Administration.

    1992-04-01

    The purpose of this appendix to the draft environmental impact statement (EIS) report is to provide an update of the latest study work done on transmission system options for the Puget Sound Area Electric Reliability Plan. Also included in the attachments to the EIS are 2 reports analyzing the voltage stability of the Puget Sound transmission system and a review by Power Technologies, Inc. of the BPA voltage stability analysis and reactive options. Five transmission line options and several reactive options are presently being considered as possible solutions to the PSAFRP by the Transmission Team. The first two line options would be built on new rights-of way adjacent (as much as possible) to existing corridors. The reactive options would optimize the existing transmission system capability by adding new stations for series capacitors and/or switchgear. The other three line options are rebuilds or upgrades of existing cross mountain transmission lines. These options are listed below and include a preliminary assessment of the additional transmission system reinforcement required to integrate the new facilities into the existing transmission system. Plans were designed to provide at least 500 MVAR reactive margin.

  9. BPA, Electric Transmission Overview, October 2012

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Electric Transmission Overview Electric transmission Electric transmission is the process by which large amounts of...

  10. Smart Grid Application of Optimal Transmission Switching

    E-Print Network [OSTI]

    Ferris, Michael C.

    ;6 Introduction continued Electric Transmission Network Flow Problem Optimal Power Flow (OPF) AlternatingSmart Grid Application of Optimal Transmission Switching By, Kory W. Hedman, et al.* University (Professor, UC Berkeley) #12;2 Motivation Co-optimize transmission topology and generation dispatch

  11. Chopper Modulation Improves OTA Information Transmission

    E-Print Network [OSTI]

    Maryland at College Park, University of

    Chopper Modulation Improves OTA Information Transmission Nicole M Nelson and Pamela A Abshire 20742 Email: {nmnelson,pabshire}@umd.edu Abstract-- We have investigated information transmission- ing the channel capacity for transmission of analog signals through an OTA using an information

  12. Transmission eigenvalues for degenerate and singular cases

    E-Print Network [OSTI]

    Sylvester, John

    Transmission eigenvalues for degenerate and singular cases Valery Serov and John Sylvester Abstract We prove the existence of infinitely many real interior transmission eigenvalues for positive transmission eigenvalues. We will prove that positive values of the square of the wavenumber k2 for which

  13. Social transmission of face preferences among humans

    E-Print Network [OSTI]

    Indiana University

    Social transmission of face preferences among humans Benedict C. Jones1,*, Lisa M. DeBruine1 researchers to propose that social transmission of mate preferences may influence sexual selection for male traits. Although it has been suggested that social transmission may also influence mate preferences

  14. Transmission Eigenvalues in One Dimension John Sylvester

    E-Print Network [OSTI]

    Sylvester, John

    Transmission Eigenvalues in One Dimension John Sylvester Abstract We show how to locate all the transmission eigenvalues for a one dimensional constant index of refraction on an interval. 1 Introduction #12;Whenever such a nontrivial pair exists, we say that k2 is an interior transmission eigenvalue

  15. Transmission consequences of coinfection: cytokines writ large?

    E-Print Network [OSTI]

    Transmission consequences of coinfection: cytokines writ large? Andrea L. Graham1 , Isabella M between- host transmission. Cytokines, immune signalling mol- ecules with a fundamental role-host transmission represents a major challenge in parasite ecology and applied biomedicine [1­5]. Co- infection (see

  16. Haykin Chapter 4 Baseband Pulse Transmission

    E-Print Network [OSTI]

    Al-Ghadhban, Samir

    1/30/2014 1 Haykin Chapter 4 Baseband Pulse Transmission EE571 Dr. Samir Alghadhban KFUPM 1 · In this chapter we study the transmission of digital data (of whatever origin) over a baseband channel. · Baseband transmission of digital data requires the use of a lowpass channel with a bandwidth large enough

  17. High Voltage DC Transmission 1.0 Introduction

    E-Print Network [OSTI]

    McCalley, James D.

    1 High Voltage DC Transmission 1.0 Introduction HVDC has been applied in electric power systems Supplier: ABB Railroa d DC Tie USA - Mission, TX 26°1001N9 8°1925W USA - Mission, TX 26°1001N9 8°1925W 21

  18. High Voltage DC Transmission 2 1.0 Introduction

    E-Print Network [OSTI]

    McCalley, James D.

    1 High Voltage DC Transmission 2 1.0 Introduction Interconnecting HVDC within an AC system requires conversion from AC to DC and inversion from DC to AC. We refer to the circuits which provide conversion from AC to DC as rectifiers and the circuits which provide conversion from DC to AC as inverters. The term

  19. Energy Efficient Transmissions in MIMO Cognitive Radio Networks

    E-Print Network [OSTI]

    Huang, Jianwei

    Energy Efficient Transmissions in MIMO Cognitive Radio Networks Liqun Fu The Institute of Network@ie.cuhk.edu.hk Abstract--In this paper, we consider energy efficient transmis- sions for MIMO cognitive radio networks on the traffic load of the secondary system. Index Terms--Cognitive radio networks, MIMO, Energy- efficiency. I

  20. Regulating Electricity Transmission in the European Union -How Many

    E-Print Network [OSTI]

    1 Regulating Electricity Transmission in the European Union - How Many Agencies? chapter 4 in A-77 Claude Crampes (TSE) Lucile Rives (CRE) National electric grids in Europe have been interconnected since, the more national electric systems need to be interconnected to provide one another mutual assistance