National Library of Energy BETA

Sample records for v6 electric motor

  1. Electric Motors

    Broader source: Energy.gov [DOE]

    Section 313 of the Energy Independence and Security Act (EISA) of 2007 raised Federal minimum efficiency standards for general-purpose, single-speed, polyphase induction motors of 1 to 500 horsepower (hp). This new standard took effect in December 2010. The new minimum efficiency levels match FEMP's performance requirement for these motors.

  2. NREL: Transportation Research - Electric Motor Thermal Management

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

    Electric Motor Thermal Management A photo of a piece of laboratory testing equipment. NREL ... motors is helping to improve the performance and reliability of electric-drive vehicles. ...

  3. Electric motor for laser-mechanical drilling

    DOE Patents [OSTI]

    Grubb, Daryl L.; Faircloth, Brian O.; Zediker, Mark S.

    2015-07-07

    A high power laser drilling system utilizing an electric motor laser bottom hole assembly. A high power laser beam travels within the electric motor for advancing a borehole. High power laser drilling system includes a down hole electrical motor having a hollow rotor for conveying a high power laser beam through the electrical motor.

  4. Selected Bibliography on Electric Motor Repair | Department of...

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

    Selected Bibliography on Electric Motor Repair Selected Bibliography on Electric Motor Repair The following series of repair documents related to electric motors were produced by...

  5. HMAX ®:Active Energy Control for Electric Motors | Department...

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

    HMAX :Active Energy Control for Electric Motors HMAX :Active Energy Control for Electric Motors Real-Time Sensing and Control of Electric Motor Operation Optimizes Energy ...

  6. Buying an Energy-Efficient Electric Motor

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

    BUYING AN ENERGY-EFFICIENT ELECTRIC MOTOR Efficiency is an important factor to consider when buying or rewinding an electric motor. This fact sheet shows you how to obtain the most ...

  7. Electrical system for a motor vehicle

    DOE Patents [OSTI]

    Tamor, M.A.

    1999-07-20

    In one embodiment of the present invention, an electrical system for a motor vehicle comprises a capacitor, an engine cranking motor coupled to receive motive power from the capacitor, a storage battery and an electrical generator having an electrical power output, the output coupled to provide electrical energy to the capacitor and to the storage battery. The electrical system also includes a resistor which limits current flow from the battery to the engine cranking motor. The electrical system further includes a diode which allows current flow through the diode from the generator to the battery but which blocks current flow through the diode from the battery to the cranking motor. 2 figs.

  8. Electrical system for a motor vehicle

    DOE Patents [OSTI]

    Tamor, Michael Alan

    1999-01-01

    In one embodiment of the present invention, an electrical system for a motor vehicle comprises a capacitor, an engine cranking motor coupled to receive motive power from the capacitor, a storage battery and an electrical generator having an electrical power output, the output coupled to provide electrical energy to the capacitor and to the storage battery. The electrical system also includes a resistor which limits current flow from the battery to the engine cranking motor. The electrical system further includes a diode which allows current flow through the diode from the generator to the battery but which blocks current flow through the diode from the battery to the cranking motor.

  9. Determining Electric Motor Load and Efficiency | Department of...

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

    Electric Motor Load and Efficiency Determining Electric Motor Load and Efficiency To compare the operating costs of an existing standard motor with an appropriately-sized ...

  10. United States Industrial Electric Motor Systems Market Opportunities...

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

    Electric Motor Systems Market Opportunities Assessment United States Industrial Electric Motor Systems Market Opportunities Assessment The objectives of the Market Assessment were ...

  11. Oscillation control system for electric motor drive

    DOE Patents [OSTI]

    Slicker, James M.; Sereshteh, Ahmad

    1988-01-01

    A feedback system for controlling mechanical oscillations in the torsionally complaint drive train of an electric or other vehicle. Motor speed is converted in a processor to estimate state signals in which a plant model which are used to electronically modify thetorque commands applied to the motor.

  12. Oscillation control system for electric motor drive

    DOE Patents [OSTI]

    Slicker, J.M.; Sereshteh, A.

    1988-08-30

    A feedback system for controlling mechanical oscillations in the torsionally complaint drive train of an electric or other vehicle. Motor speed is converted in a processor to estimate state signals in which a plant model which are used to electronically modify the torque commands applied to the motor. 5 figs.

  13. Development of Ulta-Efficient Electric Motors

    SciTech Connect (OSTI)

    Shoykhet, B.; Schiferl, R.; Duckworth, R.; Rey, C.M.; Schwenterly, S.W.; Gouge, M.J.

    2008-05-01

    Electric motors utilize a large amount of electrical energy in utility and industrial applications. Electric motors constructed with high temperature superconducting (HTS) materials have the potential to dramatically reduce electric motor size and losses. HTS motors are best suited for large motor applications at ratings above 1000 horsepower (hp), where the energy savings from the efficiency improvement can overcome the additional power required to keep the superconductors on the rotor cooled. Large HTS based motors are expected to be half the volume and have half the losses of conventional induction motors of the same rating. For a 5000 hp industrial motor, this energy savings can result in $50,000 in operating cost savings over the course of a single year of operation. Since large horsepower motors utilize (or convert) about 30% of the electrical power generated in the United States and about 70% of large motors are candidates for replacement by HTS motors, the annual energy savings potential through the utilization of HTS motors can be up to $1 Billion in the United States alone. Research in the application of HTS materials to electric motors has lead to a number of HTS motor prototypes yet no industrial HTS motor product has yet been introduced. These motor demonstrations have been synchronous motors with HTS field windings, on the rotor. Figure 1-1 shows a solid model rendering of this type of motor. The rotor winding is made with HTS coils that are held at cryogenic temperature by introducing cooling fluid from the cryocooler to the rotor through a transfer coupling. The stator winding is made of copper wire. The HTS winding is thermally isolated from the warm armature and motor shafts by a vacuum insulation space and through the use of composite torque tubes. The stator in Figure 1-1 is an air core stator in that the stator teeth and a small part of the yoke is made up of nonmagnetic material so the magnetic fields distribute themselves as if in air

  14. Replacing an Oversized and Underloaded Electric Motor | Department of

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

    Energy Replacing an Oversized and Underloaded Electric Motor Replacing an Oversized and Underloaded Electric Motor This fact sheet will assist in decisions regarding replacement of over-sized and under-loaded motors. It includes a discussion of how the MotorMaster+ software can be used to conduct motor replacement analyses. Replacing an Oversized and Underloaded Electric Motor (September 1996) (161.65 KB) More Documents & Publications MotorMaster+ User Manual Buying an Energy-Efficient

  15. Electric Motors and Critical Materials

    Broader source: Energy.gov [DOE]

    Presentation given at the EV Everywhere Grand Challenge - Electric Drive (Power Electronics and Electric Machines) Workshop on July 24, 2012 held at the Doubletree O'Hare, Chicago, IL.

  16. Energy-efficient electric motors study

    SciTech Connect (OSTI)

    Not Available

    1981-03-23

    The study identifies the industrial decision makers, investigated the information they needed to know, how they can best be reached, and the motivating factors for purchasing energy-efficient electric motors. A survey was conducted of purchasers of integral horsepower polyphase motors. The survey measured current knowledge of and awareness of energy-efficient motors, decision-making criteria, information sources, purchase and usage patterns, and related factors. The survey data were used for the electric motor market penetration analysis. Additionally, a telephone survey was made. The study also provides analyses of distribution channels, commercialization constraints, and the impacts of government programs and rising energy prices. A description of study findings, conclusions, and recommendations is presented. Sample questionnaires and copies of letters to respondents are presented in 3 appendices. Appendices D and E contain descriptions of the methods used. (MCW)

  17. VIA Motors electric vehicle platform | Department of Energy

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

    VIA Motors electric vehicle platform VIA Motors electric vehicle platform extended range electric vehicle technologies VIA Motors electric vehicle platform (1.1 MB) More Documents & Publications QTR Ex Parte Communications Vehicle Technologies Office Merit Review 2014: Electric Drive and Advanced Battery and Components Testbed (EDAB) Advanced Engine Trends, Challenges and Opportunities

  18. Ultra-Efficient and Power-Dense Electric Motors

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

    Ultra-Efficient and Power-Dense Electric Motors Advanced Electric Motors Offer Large Energy Savings in Industrial Applications Pumps, fans, and compressors use more than 60% of industrial electric motor energy in the United States. The most widely used motors in these applications are constant-speed motors that are started and run across the line. In some applications, variable- speed motors, powered from an open-loop variable-speed drive, are utilized without any rotor position feedback device

  19. Buying an Energy-Efficient Electric Motor | Department of Energy

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

    Buying an Energy-Efficient Electric Motor Buying an Energy-Efficient Electric Motor Efficiency is an important factor to consider when buying or rewinding an electric motor. This fact sheet shows you how to obtain the most efficient motor at the lowest price and avoid common problems and answers a number of frequently asked questions. Buying an Energy-Efficient Electric Motor (September 1996) (105.69 KB) More Documents & Publications Notice and Request for Comments, Federal Register, 71 FR

  20. ISSUANCE 2016-06-10: Energy Conservation Program: Certification, Compliance, Labeling, and Enforcement for Electric Motors and Small Electric Motors, Notice of Proposed Rulemaking

    Broader source: Energy.gov [DOE]

    Energy Conservation Program: Certification, Compliance, Labeling, and Enforcement for Electric Motors and Small Electric Motors, Notice of Proposed Rulemaking

  1. Selected Bibliography on Electric Motor Repair

    Office of Energy Efficiency and Renewable Energy (EERE)

    The following series of repair documents related to electric motors were produced by the U.S. Department of Energy's Advanced Manufacturing Office (formerly the Office of Industrial Technologies) with input from trade associations, consulting companies, manufacturers, non-profit operations, and others.

  2. Ultra-Efficient and Power-Dense Electric Motors

    SciTech Connect (OSTI)

    2009-01-01

    This factsheet describes a research project whose goal is to develop line-start and line-run constant-speed electric motors and simple-to-control electric motors with the goal of obtaining at least a 30% reduction in motor losses as compared to conventional energy-efficient induction motors and a 15% reduction in motor losses as compared to NEMA Premium® efficient induction motors.

  3. Electric machine for hybrid motor vehicle

    SciTech Connect (OSTI)

    Hsu, John Sheungchun

    2007-09-18

    A power system for a motor vehicle having an internal combustion engine and an electric machine is disclosed. The electric machine has a stator, a permanent magnet rotor, an uncluttered rotor spaced from the permanent magnet rotor, and at least one secondary core assembly. The power system also has a gearing arrangement for coupling the internal combustion engine to wheels on the vehicle thereby providing a means for the electric machine to both power assist and brake in relation to the output of the internal combustion engine.

  4. Vehicle Technologies Office: Electric Motors Research and Development |

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

    Department of Energy Vehicle Technologies Office: Electric Motors Research and Development Vehicle Technologies Office: Electric Motors Research and Development To reach the EV Everywhere Grand Challenge goal, the Vehicle Technologies Office (VTO) is supporting research and development (R&D) to improve motors in hybrid and plug-in electric vehicles, with a particular focus on reducing the use of rare earth materials currently used for permanent magnet-based motors. In an electric drive

  5. EV Everywhere Workshop: Electric Motors and Critical Materials...

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

    EV Everywhere Workshop: Electric Motors and Critical Materials Breakout Group Report Presentation given at the EV Everywhere Grand Challenge Electric Drive (Power Electronics ...

  6. JV between Hybrid Electric and Mullen Motors | Open Energy Information

    Open Energy Info (EERE)

    Name: JV between Hybrid Electric and Mullen Motors Product: Joint Venture to develop a vehicle fitted with hybrid and lithium technologies References: JV between Hybrid Electric...

  7. Electric Motor Thermal Management for Electric Traction Drives (Presentation)

    SciTech Connect (OSTI)

    Bennion, K.; Cousineau, J.; Moreno, G.

    2014-09-01

    Thermal constraints place significant limitations on how electric motors ultimately perform. Finite element analysis and computational fluid dynamics modeling approaches are being increasingly utilized in the design and analysis of electric motors. As the models become more sophisticated, it is important to have detailed and accurate knowledge of material thermal properties and convective heat transfer coefficients. In this work, the thermal properties and inter-lamination thermal contact resistances were measured for different stator lamination materials. Also, convective heat transfer coefficients of automatic transmission fluid (ATF) jets were measured to better understand the heat transfer of ATF impinging on motor copper windings. Experiments were carried out at various ATF temperatures and jet velocities to quantify the influence of these parameters on heat transfer coefficients.

  8. United States Industrial Electric Motor Systems Market Opportunities

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

    Assessment | Department of Energy Electric Motor Systems Market Opportunities Assessment United States Industrial Electric Motor Systems Market Opportunities Assessment The objectives of the Market Assessment were to: Develop a detailed profile of the stock of motor-driven equipment in U.S. industrial facilities; Characterize and estimate the magnitude of opportunities to improve the energy efficiency of industrial motor systems; Develop a profile of motor system purchase and maintenance

  9. Optimizing Electric Motor Systems at a Corporate Campus Facility |

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

    Department of Energy Electric Motor Systems at a Corporate Campus Facility Optimizing Electric Motor Systems at a Corporate Campus Facility Minnesota Mining and Manufacturing (3M) conducted an in-house motor system performance optimization project. This four-page case study describes their experience. Optimizing Electric Motor Systems at a Corporate Campus Facility (May 2002) (191.7 KB) More Documents & Publications Metal and Glass Manufacturers Reduce Costs by Increasing Energy

  10. Dual power, constant speed electric motor system

    DOE Patents [OSTI]

    Kirschbaum, H.S.

    1984-07-31

    A dual capacity permanent split capacitor electric motor system is provided with a stator having main and auxiliary windings. The main stator winding includes two winding sections which are connected in parallel with each other and across a pair of line terminals while the auxiliary winding is connected in series with a capacitor to form a circuit branch which is connected between the line terminals for operation at a first output power level. Switching means are provided to reconnect the main stator winding sections in series with each other and in series with a second capacitor to form a circuit branch which is connected between the line terminals while the stator auxiliary winding is connected directly between the line terminals for operation at a second output power level. Automatic rotation reversal occurs when the motor switches from the first to the second output power level. 6 figs.

  11. Dual power, constant speed electric motor system

    DOE Patents [OSTI]

    Kirschbaum, Herbert S.

    1984-01-01

    A dual capacity permanent split capacitor electric motor system is provided with a stator having main and auxiliary windings. The main stator winding includes two winding sections which are connected in parallel with each other and across a pair of line terminals while the auxiliary winding is connected in series with a capacitor to form a circuit branch which is connected between the line terminals for operation at a first output power level. Switching means are provided to reconnect the main stator winding sections in series with each other and in series with a second capacitor to form a circuit branch which is connected between the line terminals while the stator auxiliary winding is connected directly between the line terminals for operation at a second output power level. Automatic rotation reversal occurs when the motor switches from the first to the second output power level.

  12. Thermal Management of Power Electronics and Electric Motors for Electric-Drive Vehicles (Presentation)

    SciTech Connect (OSTI)

    Narumanchi, S.

    2014-09-01

    This presentation is an overview of the power electronics and electric motor thermal management and reliability activities at NREL. The focus is on activities funded by the Department of Energy Vehicle Technologies Office Advanced Power Electronics and Electric Motors Program.

  13. Low cost, compact, and high efficiency traction motor for electric and hybrid electric vehicles

    SciTech Connect (OSTI)

    Ehsani, Mark

    2002-10-07

    A new motor drive, the switched reluctance motor drive, has been developed for hybrid-electric vehicles. The motor drive has been designed, built and tested in the test bed at a near vehicle scale. It has been shown that the switched reluctance motor drive is more suitable for traction application than any other motor drive.

  14. United States Industrial Electric Motor Systems Market Opportunities...

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

    ... of site personnel or our field engineers to provide ... interval is the range around the sample estimate that ... In 1994, industrial electric motor systems used in ...

  15. Next Generation Electric Machines: Megawatt Class Motors FOA Informational Webinar

    Broader source: Energy.gov [DOE]

    The Next Generation Electric Machines: Megawatt Class Motors FOA Informational Webinar will discuss standard procedures regarding the EERE Office and FOA process.

  16. DOE Issues Notice of Proposed Rulemaking for Electric Motors...

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

    regarding energy conservation standards for certain commercial and industrial electric motors, under subpart B of Title 10 of the Code of Federal Regulations, Part 431, including a...

  17. Reducing current reversal time in electric motor control

    DOE Patents [OSTI]

    Bredemann, Michael V

    2014-11-04

    The time required to reverse current flow in an electric motor is reduced by exploiting inductive current that persists in the motor when power is temporarily removed. Energy associated with this inductive current is used to initiate reverse current flow in the motor.

  18. IEMDC - In-Line Electric Motor Driven Compressor

    SciTech Connect (OSTI)

    Michael J. Crowley

    2004-03-31

    This report covers the fifth quarter (01/01/04 to 03/31/04) of the In-Line Electric Motor Driven Compressor (IEMDC) project. Design efforts on the IEMDC continued with compressor efforts focused on performing aerodynamic analyses. These analyses were conducted using computational fluid dynamics. Compressor efforts also entailed developing mechanical designs of components through the use of solid models and working on project deliverables. Electric motor efforts focused on the design of the magnetic bearing system, motor pressure housing, and the motor-compressor interface. The mechanical evaluation of the main interface from both the perspective of the compressor manufacturer and electric motor manufacturer indicates that an acceptable design has been achieved. All mechanical and aerodynamic design efforts have resulted in considerable progress being made towards the completion of the compressor and electric motor design and towards the successful completion of the IEMDC unit.

  19. Hybrid and Electric Traction Motor | GE Global Research

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

    A World-Class Traction Motor for Hybrid and Electric Vehicles Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window) Click to share (Opens in new window) Click to share on LinkedIn (Opens in new window) Click to share on Tumblr (Opens in new window) A World-Class Traction Motor for Hybrid and Electric Vehicles Engineers at GE Global Research are advancing motor technology that could have a substantial impact on hybrid and electric vehicles (EVs) of the

  20. Rare-Earth-Free Traction Motor: Rare Earth-Free Traction Motor for Electric Vehicle Applications

    SciTech Connect (OSTI)

    2012-01-01

    REACT Project: Baldor will develop a new type of traction motor with the potential to efficiently power future generations of EVs. Unlike todays large, bulky EV motors which use expensive, imported rare-earth-based magnets, Baldors motor could be light, compact, contain no rare earth materials, and have the potential to deliver more torque at a substantially lower cost. Key innovations in this project include the use of a unique motor design, incorporation of an improved cooling system, and the development of advanced materials manufacturing techniques. These innovations could significantly reduce the cost of an electric motor.

  1. Selected Bibliography on Electric Motor Repair

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

    ... Moudy, W. Howard, Jerry S. Honeycutt, Roland P. Krebs, Jr., and Norm Holladay, "Considerations Regarding Coil and Insulation Systems for Medium and High Voltage Motor Rewinds." P ...

  2. Aging assessment of large electric motors in nuclear power plants

    SciTech Connect (OSTI)

    Villaran, M.; Subudhi, M.

    1996-03-01

    Large electric motors serve as the prime movers to drive high capacity pumps, fans, compressors, and generators in a variety of nuclear plant systems. This study examined the stressors that cause degradation and aging in large electric motors operating in various plant locations and environments. The operating history of these machines in nuclear plant service was studied by review and analysis of failure reports in the NPRDS and LER databases. This was supplemented by a review of motor designs, and their nuclear and balance of plant applications, in order to characterize the failure mechanisms that cause degradation, aging, and failure in large electric motors. A generic failure modes and effects analysis for large squirrel cage induction motors was performed to identify the degradation and aging mechanisms affecting various components of these large motors, the failure modes that result, and their effects upon the function of the motor. The effects of large motor failures upon the systems in which they are operating, and on the plant as a whole, were analyzed from failure reports in the databases. The effectiveness of the industry`s large motor maintenance programs was assessed based upon the failure reports in the databases and reviews of plant maintenance procedures and programs.

  3. Electric Motor Thermal Management R&D: Annual Report

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

    ... NREL Technical Report NRELTP- 5400-63887, June 2015. 5 K. Bennion. "Electric Motor Thermal Management R&D." 2015 DOE Vehicle Technologies Office (VTO) Annual Merit Review, June ...

  4. Advanced Power Electronics and Electric Motors R&D | Department...

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

    R&D Advanced Power Electronics and Electric Motors R&D 2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Vehicle ...

  5. Advanced Power Electronics and Electric Motors Annual Report -- 2013

    SciTech Connect (OSTI)

    Narumanchi, S.; Bennion, K.; DeVoto, D.; Moreno, G.; Rugh, J.; Waye, S.

    2015-01-01

    This report describes the research into advanced liquid cooling, integrated power module cooling, high temperature air cooled power electronics, two-phase cooling for power electronics, and electric motor thermal management by NREL's Power Electronics group in FY13.

  6. High-speed electrical motor evaluation

    SciTech Connect (OSTI)

    Not Available

    1989-02-03

    Under this task, MTI conducted a general review of state-of-the-art high-speed motors. The purpose of this review was to assess the operating parameters, limitations and performance of existing motor designs, and to establish commercial sources for a motor compatible with the requirements of the Brayton-cycle system. After the motor requirements were established, a list of motor types, manufacturers and designs capable of achieving the requisite performance was compiled. This list was based on an in-house evaluation of designs. Following the establishment of these options, a technical evaluation of the designs selected was conducted. In parallel with their evaluations, MTI focused on the establishment of commercial sources.

  7. Efficient, High-Torque Electric Vehicle Motor: Advanced Electric Vehicle Motors with Low or No Rare Earth Content

    SciTech Connect (OSTI)

    2012-01-01

    REACT Project: QM Power will develop a new type of electric motor with the potential to efficiently power future generations of EVs without the use of rare-earth-based magnets. Many of todays EV motors use rare earth magnets to efficiently provide torque to the wheels. QM Powers motors would contain magnets that use no rare earth minerals, are light and compact, and can deliver more power with greater efficiency and at reduced cost. Key innovations in this project include a new motor design with iron-based magnetic materials, a new motor control technique, and advanced manufacturing techniques that substantially reduce the cost of the motor. The ultimate goal of this project is to create a cost-effective EV motor that offers the rough peak equivalent of 270 horsepower.

  8. System and method to determine electric motor efficiency nonintrusively

    DOE Patents [OSTI]

    Lu, Bin; Habetler, Thomas G.; Harley, Ronald G.

    2011-08-30

    A system and method for nonintrusively determining electric motor efficiency includes a processor programed to, while the motor is in operation, determine a plurality of stator input currents, electrical input data, a rotor speed, a value of stator resistance, and an efficiency of the motor based on the determined rotor speed, the value of stator resistance, the plurality of stator input currents, and the electrical input data. The determination of the rotor speed is based on one of the input power and the plurality of stator input currents. The determination of the value of the stator resistance is based on at least one of a horsepower rating and a combination of the plurality of stator input currents and the electrical input data. The electrical input data includes at least one of an input power and a plurality of stator input voltages.

  9. Determining Electric Motor Load and Efficiency

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

    ... circuit method to estimate the load and efficiency of an in-service motor. Only nameplate data and a measurement of ... data, such as stator resistance, to improve accuracy of ...

  10. Electric motor systems in developing countries: Opportunities for efficiency improvement

    SciTech Connect (OSTI)

    Meyers, S.; Monahan, P.; Lewis, P.; Greenberg, S.; Nadel, S.

    1993-08-01

    This report presents an overview of the current status and efficiency improvement potential of industrial motor systems in developing countries. Better management of electric motor systems is of particular relevance in developing countries, where improved efficiency can lead to increased productivity and slower growth in electricity demand. Motor systems currently consume some 65--80% of the industrial electricity in developing countries. Drawing on studies from Thailand, India, Brazil, China, Pakistan, and Costa Rica, we describe potential efficiency gains in various parts of the motor system, from the electricity delivery system through the motor to the point where useful work is performed. We report evidence of a significant electricity conservation potential. Most of the efficiency improvement methods we examine are very cost-effective from a societal viewpoint, but are generally not implemented due to various barriers that deter their adoption. Drawing on experiences in North America, we discuss a range of policies to overcome these barriers, including education, training, minimum efficiency standards, motor efficiency testing protocols, technical assistance programs, and financial incentives.

  11. Heat engine and electric motor torque distribution strategy for a hybrid electric vehicle

    DOE Patents [OSTI]

    Boberg, Evan S.; Gebby, Brian P.

    1999-09-28

    A method is provided for controlling a power train system for a hybrid electric vehicle. The method includes a torque distribution strategy for controlling the engine and the electric motor. The engine and motor commands are determined based upon the accelerator position, the battery state of charge and the amount of engine and motor torque available. The amount of torque requested for the engine is restricted by a limited rate of rise in order to reduce the emissions from the engine. The limited engine torque is supplemented by motor torque in order to meet a torque request determined based upon the accelerator position.

  12. Ultra-Efficient and Power-Dense Electric Motors | Department of Energy

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

    Ultra-Efficient and Power-Dense Electric Motors Ultra-Efficient and Power-Dense Electric Motors electric_motors.pdf (524.04 KB) More Documents & Publications Advance Patent Waiver W(A)2009-030 Improving Motor and Drive System Performance - A Sourcebook for Industry Energy-Intensive Processes Portfolio: Addressing Key Energy Challenges Across U.S. Industry

  13. System and method to determine electric motor efficiency using an equivalent circuit

    DOE Patents [OSTI]

    Lu, Bin; Habetler, Thomas G.

    2015-10-27

    A system and method for determining electric motor efficiency includes a monitoring system having a processor programmed to determine efficiency of an electric motor under load while the electric motor is online. The determination of motor efficiency is independent of a rotor speed measurement. Further, the efficiency is based on a determination of stator winding resistance, an input voltage, and an input current. The determination of the stator winding resistance occurs while the electric motor under load is online.

  14. System and method to determine electric motor efficiency using an equivalent circuit

    DOE Patents [OSTI]

    Lu, Bin; Habetler, Thomas G.

    2011-06-07

    A system and method for determining electric motor efficiency includes a monitoring system having a processor programmed to determine efficiency of an electric motor under load while the electric motor is online. The determination of motor efficiency is independent of a rotor speed measurement. Further, the efficiency is based on a determination of stator winding resistance, an input voltage, and an input current. The determination of the stator winding resistance occurs while the electric motor under load is online.

  15. System and method to determine electric motor efficiency using an equivalent circuit

    DOE Patents [OSTI]

    Lu, Bin; Habetler, Thomas G

    2015-11-06

    A system and method for determining electric motor efficiency includes a monitoring system having a processor programmed to determine efficiency of an electric motor under load while the electric motor is online. The determination of motor efficiency is independent of a rotor speed measurement. Further, the efficiency is based on a determination of stator winding resistance, an input voltage, and an input current. The determination of the stator winding resistance occurs while the electric motor under load is online.

  16. IEMDC--IN-LINE ELECTRIC MOTOR DRIVEN COMPRESSOR

    SciTech Connect (OSTI)

    Michael J. Crowley; Prem N. Bansal; John E. Tessaro

    2004-01-01

    Considerable effort was put forth on the mechanical design of the compressor section of the IEMDC. These efforts focused on the main compressor case design and included an evaluation of the motor-compressor interface. The initial mechanical evaluation of the compressor motor interface indicates that the integration of an electric motor and compressor can be made successfully. All mechanical design efforts resulted in considerable progress being made towards the completion of the mechanical design of the compressor section and towards the design of the IEMDC unit. During the fourth quarter, one of the primary objectives was to select the magnetic bearing supplier and to begin finalizing the design of various motor components. Consequently, the design proposals from the three magnetic bearing suppliers were evaluated and Kingsbury magnetic Bearings (KMB) was selected for the design of the magnetic bearing system. A purchase order was issued to KMB and design kick-off meeting was held at EMD on December 11, 2003 with the KMB/S2M/DR teams, to discuss the project requirements. A joint DR/EMD/Robicon IEMDC Compressor-Motor-VFD Drive technical status update presentation was prepared, and was presented at the GMRC meeting on October 5, 2003 at Salt Lake City, UT. Considerable effort was expended in evaluating the fatigue life of the motor rotor via FEA modeling. The purpose of this analysis was two fold: (1) to establish the motor start-stop cycle life and (2) to evaluate the applicability of lower cost connection ring copper alloys. The FEA modal frequency analysis of relatively softer motor mount concepts instead of the hard mounts was continued. The intent of the design effort is to develop an optimum motor support. The results are not yet conclusive. Therefore further analysis is planned in the next quarter. The EMD design team worked with the KMB design team to develop design concepts for the magnetic bearing housings. Significant progress was made in interfacing the

  17. Electric Motor Thermal Management R&D (Presentation)

    SciTech Connect (OSTI)

    Bennion, K.

    2014-11-01

    Thermal constraints place significant limitations on how electric motors ultimately perform. Without the ability to remove heat, the motor cannot operate without sacrificing performance, efficiency, and reliability. Finite element analysis and computational fluid dynamics modeling approaches are being increasingly utilized in the design and analysis of electric motors. As the models become more sophisticated, it is important to have detailed and accurate knowledge of both the passive thermal performance and the active cooling performance. In this work, we provide an overview of research characterizing both passive and active thermal elements related to electric motor thermal management. To better characterize the passive thermal performance, the effective thermal properties and inter-lamination thermal contact resistances were measured for different stator lamination materials. The active cooling performance of automatic transmission fluid (ATF) jets was also measured to better understand the heat transfer coefficients of ATF impinging on motor copper windings. Ford's Mercon LV was the ATF evaluated in this study. The presentation provides an overview of prior work with a focus on describing future plans for research to be performed during FY15.

  18. IEMDC IN-LINE ELECTRIC MOTOR DRIVEN COMPRESSOR

    SciTech Connect (OSTI)

    Michael J. Crowley; Prem N. Bansal

    2004-10-01

    This report contains the final project summary and deliverables required by the award for the development of an In-line Electric Motor Driven Compressor (IEMDC). Extensive work was undertaken during the course of the project to develop the motor and the compressor section of the IEMDC unit. Multiple design iterations were performed to design an electric motor for operation in a natural gas environment and to successfully integrate the motor with a compressor. During the project execution, many challenges were successfully overcome in order to achieve the project goals and to maintain the system design integrity. Some of the challenges included limiting the magnitude of the compressor aerodynamic loading for appropriate sizing of the magnetic bearings, achieving a compact motor rotor size to meet the rotor dynamic requirements of API standards, devising a motor cooling scheme using high pressure natural gas, minimizing the impact of cooling on system efficiency, and balancing the system thrust loads for the magnetic thrust bearing. Design methods that were used on the project included validated state-of-the-art techniques such as finite element analysis and computational fluid dynamics along with the combined expertise of both Curtiss-Wright Electro-Mechanical Corporation and Dresser-Rand Company. One of the most significant areas of work undertaken on the project was the development of the unit configuration for the system. Determining the configuration of the unit was a significant step in achieving integration of the electric motor into a totally enclosed compression system. Product review of the IEMDC unit configuration was performed during the course of the development process; this led to an alternate design configuration. The alternate configuration is a modular design with the electric motor and compressor section each being primarily contained in its own pressure containing case. This new concept resolved the previous conflict between the aerodynamic flow

  19. IEMDC -IN-LINE ELECTRIC MOTOR DRIVEN COMPRESSOR

    SciTech Connect (OSTI)

    Michael J. Crowley; Prem N. Bansal; John E. Tessaro

    2004-01-01

    Dresser-Rand completed the preliminary aerodynamic flowpath of the volute and inlet design for the compressor section. This has resulted in considerable progress being made on the development of the compressor section and ultimately towards the successful integration of the IEMDC System design. Significant effort was put forth in the design of aerodynamic components which resulted in a design that meets the limits of aerodynamically induced radial forces previously established. Substantial effort has begun on the mechanical design of the compressor pressure containing case and other internal components. These efforts show progression towards the successful integration of a centrifugal compressor and variable speed electric motor ventilated by the process gas. All efforts continue to confirm the feasibility of the IEMDC system design. During the third quarter reporting period, the focus was to further refine the motor design and to ensure that the IEMDC rotor system supported on magnetic bearing is in compliance with the critical speed and vibration requirements of the API standards 617 and 541. Consequently specification to design magnetic bearings was developed and an RFQ to three magnetic bearing suppliers was issued. Considerable work was also performed to complete preliminary reports on some of the deliverable tasks under phase 1.0. These include specification for the VFD, RFQ for the magnetic bearings, and preliminary write-up for motor instrumentation and control schematic. In order to estimate motor efficiency at various operating points, plots of calculated motor losses, and motor cooling gas flow rates were also prepared. Preliminary evaluations of motor support concepts were performed via FEA to determine modal frequencies. Presentation was made at DOE Morgantown on August 12, 2003 to provide project status update. Preparations for the IEMDC motor-compressor presentation, at the GMRC conference in Salt Lake City to be held on October 5, 2003, were also

  20. Electrical motor/generator drive apparatus and method

    DOE Patents [OSTI]

    Su, Gui Jia

    2013-02-12

    The present disclosure includes electrical motor/generator drive systems and methods that significantly reduce inverter direct-current (DC) bus ripple currents and thus the volume and cost of a capacitor. The drive methodology is based on a segmented drive system that does not add switches or passive components but involves reconfiguring inverter switches and motor stator winding connections in a way that allows the formation of multiple, independent drive units and the use of simple alternated switching and optimized Pulse Width Modulation (PWM) schemes to eliminate or significantly reduce the capacitor ripple current.

  1. Permanent split capacitor single phase electric motor system

    DOE Patents [OSTI]

    Kirschbaum, H.S.

    1984-08-14

    A permanent split capacitor single phase electric motor achieves balanced operation at more than one operating point by adjusting the voltage supplied to the main and auxiliary windings and adjusting the capacitance in the auxiliary winding circuit. An intermediate voltage tap on an autotransformer supplies voltage to the main winding for low speed operation while a capacitive voltage divider is used to adjust the voltage supplied to the auxiliary winding for low speed operation. 4 figs.

  2. Permanent split capacitor single phase electric motor system

    DOE Patents [OSTI]

    Kirschbaum, Herbert S.

    1984-01-01

    A permanent split capacitor single phase electric motor achieves balanced operation at more than one operating point by adjusting the voltage supplied to the main and auxiliary windings and adjusting the capacitance in the auxiliary winding circuit. An intermediate voltage tap on an autotransformer supplies voltage to the main winding for low speed operation while a capacitive voltage divider is used to adjust the voltage supplied to the auxiliary winding for low speed operation.

  3. Instrument for analysis of electric motors based on slip-poles component

    DOE Patents [OSTI]

    Haynes, H.D.; Ayers, C.W.; Casada, D.A.

    1996-11-26

    A new instrument is described for monitoring the condition and speed of an operating electric motor from a remote location. The slip-poles component is derived from a motor current signal. The magnitude of the slip-poles component provides the basis for a motor condition monitor, while the frequency of the slip-poles component provides the basis for a motor speed monitor. The result is a simple-to-understand motor health monitor in an easy-to-use package. Straightforward indications of motor speed, motor running current, motor condition (e.g., rotor bar condition) and synthesized motor sound (audible indication of motor condition) are provided. With the device, a relatively untrained worker can diagnose electric motors in the field without requiring the presence of a trained engineer or technician. 4 figs.

  4. Instrument for analysis of electric motors based on slip-poles component

    DOE Patents [OSTI]

    Haynes, Howard D.; Ayers, Curtis W.; Casada, Donald A.

    1996-01-01

    A new instrument for monitoring the condition and speed of an operating electric motor from a remote location. The slip-poles component is derived from a motor current signal. The magnitude of the slip-poles component provides the basis for a motor condition monitor, while the frequency of the slip-poles component provides the basis for a motor speed monitor. The result is a simple-to-understand motor health monitor in an easy-to-use package. Straightforward indications of motor speed, motor running current, motor condition (e.g., rotor bar condition) and synthesized motor sound (audible indication of motor condition) are provided. With the device, a relatively untrained worker can diagnose electric motors in the field without requiring the presence of a trained engineer or technician.

  5. Overview of the DOE Advanced Power Electronics and Electric Motor R&D Program

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

    Power Electronics and Electric Motor R&D Program Susan Rogers Steven Boyd Advanced Power Electronics and Electric Motors Vehicle Technologies Office June 17, 2014 VEHICLE TECHNOLOGIES OFFICE 2 APEEM R&D Program Vehicle Technologies Office Hybrid Electric Systems R&D Vehicle Systems Advanced Power Electronics & Electric Motors (APEEM) R&D Industry Federal Agencies Academia National Labs Energy Storage 3 APEEM R&D Mission and Budget Develop advanced power electronics,

  6. Halbach array motor/generators: A novel generalized electric machine

    SciTech Connect (OSTI)

    Merritt, B.T.; Post, R.F.; Dreifuerst, G.R.; Bender, D.A.

    1995-02-01

    For many years Klaus Halbach has been investigating novel designs for permanent magnet arrays, using advanced analytical approaches and employing a keen insight into such systems. One of his motivations for this research was to find more efficient means for the utilization of permanent magnets for use in particle accelerators and in the control of particle beams. As a result of his pioneering work, high power free-electron laser systems, such as the ones built at the Lawrence Livermore Laboratory, became feasible, and his arrays have been incorporated into other particle-focusing systems of various types. This paper reports another, quite different, application of Klaus` work, in the design of high power, high efficiency, electric generators and motors. When tested, these motor/generator systems display some rather remarkable properties. Their success derives from the special properties which these arrays, which the authors choose to call {open_quotes}Halbach arrays,{close_quotes} possess.

  7. United States Industrial Electric Motor Systems Market Opportunities...

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

    ... Where the nameplate efficiency is missing or otherwise inaccessible, a default efficiency is used, taken from the standard efficien- cies listed in MotorMaster+ motor energy system ...

  8. Advanced Power Electronics and Electric Motors (APEEM) R&D Program...

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

    Meeting ape00arogers2013o.pdf (2.77 MB) More Documents & Publications Advanced Power Electronics and Electric Motors (APEEM) R&D Program Overview Electric Drive Status and ...

  9. Submerged electricity generation plane with marine current-driven motors

    DOE Patents [OSTI]

    Dehlsen, James G.P.; Dehlsen, James B.; Fleming, Alexander

    2014-07-01

    An underwater apparatus for generating electric power from ocean currents and deep water tides. A submersible platform including two or more power pods, each having a rotor with fixed-pitch blades, with drivetrains housed in pressure vessels that are connected by a transverse structure providing buoyancy, which can be a wing depressor, hydrofoil, truss, or faired tube. The platform is connected to anchors on the seafloor by forward mooring lines and a vertical mooring line that restricts the depth of the device in the water column. The platform operates using passive, rather than active, depth control. The wing depressor, along with rotor drag loads, ensures the platform seeks the desired operational current velocity. The rotors are directly coupled to a hydraulic pump that drives at least one constant-speed hydraulic-motor generator set and enables hydraulic braking. A fluidic bearing decouples non-torque rotor loads to the main shaft driving the hydraulic pumps.

  10. IEMDC-IN-LINE ELECTRIC MOTOR DRIVEN COMPRESSOR

    SciTech Connect (OSTI)

    Michael J. Crowley; Prem N. Bansal; John E. Tessaro

    2003-06-01

    During this reporting period, significant progress has been made towards the development of the IEMDC System design. Considerable effort was put forth by Curtiss-Wright EMD in the resolution of the technical issue of aerodynamically induced radial forces. This has provided a design basis with which to establish the radial magnetic bearing load capacity and the rotordynamic design. Dresser-Rand has made considerable progress on the flowpath design for the compressor section particularly on the volute and inlet aerodynamic design. All efforts show progression towards the successful integration of a centrifugal compressor and variable speed electric motor ventilated by the process gas. These efforts continue to confirm the feasibility of the IEMDC system design.

  11. Method and system for operating an electric motor

    DOE Patents [OSTI]

    Gallegos-Lopez, Gabriel; Hiti, Silva; Perisic, Milun

    2013-01-22

    Methods and systems for operating an electric motor having a plurality of windings with an inverter having a plurality of switches coupled to a voltage source are provided. A first plurality of switching vectors is applied to the plurality of switches. The first plurality of switching vectors includes a first ratio of first magnitude switching vectors to second magnitude switching vectors. A direct current (DC) current associated with the voltage source is monitored during the applying of the first plurality of switching vectors to the plurality of switches. A second ratio of the first magnitude switching vectors to the second magnitude switching vectors is selected based on the monitoring of the DC current associated with the voltage source. A second plurality of switching vectors is applied to the plurality of switches. The second plurality of switching vectors includes the second ratio of the first magnitude switching vectors to the second magnitude switching vectors.

  12. Ames Laboratory receives $350K to improve electric motors | The Ames

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

    Laboratory Ames Laboratory receives $350K to improve electric motors Ames Tribune staff writer Dan Mika talks with Ames Laboratory researchers Iver Anderson and Emma White about their $350,000 grant from the Department of Energy to fund development of new magnets for use in motors for automotive applications. News Link: Ames Laboratory receives $350,000 to improve electric motor parts

  13. System and method for motor speed estimation of an electric motor

    DOE Patents [OSTI]

    Lu, Bin; Yan, Ting; Luebke, Charles John; Sharma, Santosh Kumar

    2012-06-19

    A system and method for a motor management system includes a computer readable storage medium and a processing unit. The processing unit configured to determine a voltage value of a voltage input to an alternating current (AC) motor, determine a frequency value of at least one of a voltage input and a current input to the AC motor, determine a load value from the AC motor, and access a set of motor nameplate data, where the set of motor nameplate data includes a rated power, a rated speed, a rated frequency, and a rated voltage of the AC motor. The processing unit is also configured to estimate a motor speed based on the voltage value, the frequency value, the load value, and the set of nameplate data and also store the motor speed on the computer readable storage medium.

  14. Electric Motor Thermal Management R&D; NREL (National Renewable Energy Laboratory)

    SciTech Connect (OSTI)

    Bennion, Kevin

    2015-06-09

    Thermal constraints place significant limitations on how electric motors ultimately perform. Without the ability to remove heat, the motor cannot operate without sacrificing performance, efficiency, and reliability. Finite element analysis and computational fluid dynamics modeling approaches are being increasingly utilized in the design and analysis of electric motors. As the models become more sophisticated, it is important to have detailed and accurate knowledge of both the passive thermal performance and the active cooling performance. In this work, we provide an overview of research characterizing both passive and active thermal elements related to electric motor thermal management. To better characterize the passive thermal performance, work is being performed to measure motor material thermal properties and thermal contact resistances. The active cooling performance of automatic transmission fluid (ATF) jets is also being measured to better understand the heat transfer coefficients of ATF impinging on motor copper windings.

  15. Extended cage adjustable speed electric motors and drive packages

    DOE Patents [OSTI]

    Hsu, J.S.

    1999-03-23

    The rotor cage of a motor is extended, a second stator is coupled to this extended rotor cage, and the windings have the same number of poles. The motor torque and speed can be controlled by either injecting energy into or extracting energy out from the rotor cage. The motor produces less harmonics than existing doubly-fed motors. Consequently, a new type of low cost, high efficiency drive is produced. 12 figs.

  16. Extended cage adjustable speed electric motors and drive packages

    DOE Patents [OSTI]

    Hsu, John S.

    1999-01-01

    The rotor cage of a motor is extended, a second stator is coupled to this extended rotor cage, and the windings have the same number of poles. The motor torque and speed can be controlled by either injecting energy into or extracting energy out from the rotor cage. The motor produces less harmonics than existing doubly-fed motors. Consequently, a new type of low cost, high efficiency drive is produced.

  17. Method and system for early detection of incipient faults in electric motors

    DOE Patents [OSTI]

    Parlos, Alexander G; Kim, Kyusung

    2003-07-08

    A method and system for early detection of incipient faults in an electric motor are disclosed. First, current and voltage values for one or more phases of the electric motor are measured during motor operations. A set of current predictions is then determined via a neural network-based current predictor based on the measured voltage values and an estimate of motor speed values of the electric motor. Next, a set of residuals is generated by combining the set of current predictions with the measured current values. A set of fault indicators is subsequently computed from the set of residuals and the measured current values. Finally, a determination is made as to whether or not there is an incipient electrical, mechanical, and/or electromechanical fault occurring based on the comparison result of the set of fault indicators and a set of predetermined baseline values.

  18. Energy Savings Potential and Opportunities for High-Efficiency Electric Motors in Residential and Commercial Equipment

    SciTech Connect (OSTI)

    Goetzler, William; Sutherland, Timothy; Reis, Callie

    2013-12-04

    This report describes the current state of motor technology and estimates opportunities for energy savings through application of more advanced technologies in a variety of residential and commercial end uses. The objectives of this report were to characterize the state and type of motor technologies used in residential and commercial appliances and equipment and to identify opportunities to reduce the energy consumption of electric motor-driven systems in the residential and commercial sectors through the use of advanced motor technologies. After analyzing the technical savings potential offered by motor upgrades and variable speed technologies, recommended actions are presented.

  19. Ameren Illinois (Electric) - Custom, HVAC and Motor Business...

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

    Water Heaters Chillers Heat Pumps Air conditioners Heat recovery Compressed air Motor VFDs Agricultural Equipment CustomOthers pending approval Other EE Tankless Water...

  20. Advanced Power Electronics and Electric Motors (APEEM) R&D Program...

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

    Battery On-Board Battery Charger Bi-directional Converter Electric Motor Inverter DC-DC Converter Ancillary Loads 120 V AC 240 V AC Fast Charger 6 | Vehicle Technologies ...

  1. DOE Issues Test Procedure Final Rule & Publishes Energy Conservation Standards NOPR for Electric Motors

    Broader source: Energy.gov [DOE]

    The Department of Energy (DOE) has issued a pre-publication Federal Register final rule regarding test procedures and published a notice of proposed rulemaking (NOPR) regarding energy conservation standards for electric motors.

  2. DOE Issues Notice of Proposed Rulemaking for Electric Motors Energy Conservation Standards

    Broader source: Energy.gov [DOE]

    The Department of Energy (DOE) has issued a pre-publication Federal Register notice of proposed rulemaking regarding energy conservation standards for certain commercial and industrial electric motors, under subpart B of Title 10 of the Code of Fe

  3. Advanced Power Electronics and Electric Motors (APEEM) R&D Program...

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

    vtpn08aperogers2012o.pdf (2.34 MB) More Documents & Publications Advanced Power Electronics and Electric Motors (APEEM) R&D Program Overview Advnaced Power Electronics and ...

  4. Optimizing Electric Motor Systems at a Corporate Campus Facility

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

    ... A timer in the DDCS initiated the turning on and off of some of the exhaust fans. The team also retrofitted the supply makeup air fan motor with a variable frequency drive (VFD) ...

  5. Ultra-Efficient and Power Dense Electric Motors for U. S. Industry

    SciTech Connect (OSTI)

    Melfi, Michael J.; Schiferl, Richard F.; Umans, Stephen D.

    2013-03-12

    percentage points lower than the energy efficient motor. This 30 HP rating full load efficiency corresponds to a 46% reduction in loss compared to a 30 HP NEMA Premium? efficient motor. The cost goals were to provide a two year or shorter efficiency-based payback of a price premium associated with the magnet cost in these motors. That goal is based on 24/7 operation with a cost of electricity of 10 cents per kW-hr. Similarly, the 250 HP prototype efficiency testing was quite successful. In this case, the efficiency was maximized with a slightly less aggressive reduction in active material. The measured full load efficiency of 97.6% represents in excess of a 50% loss reduction compared to the equivalent NEMA Premium Efficiency induction motor. The active material weight reduction was a respectable 14.5% figure. This larger rating demonstrated both the scalability of this technology and also the ability to flexibly trade off power density and efficiency. In terms of starting performance, the 30 ? 50 HP prototypes were very extensively tested. The demonstrated capability included the ability to successfully start a load with an inertia of 25 times the motor?s own inertia while accelerating against a load torque following a fan profile at the motor?s full nameplate power rating. This capability will provide very wide applicability of this motor technology. The 250 HP prototype was also tested for starting characteristics, though without a coupled inertia and load torque. As a result it was not definitively proven that the same 25 times the motor?s own inertia could be started and synchronized successfully at 250 HP. Finite element modeling implies that this load could be successfully started, but it has not yet been confirmed by a test.

  6. The Impacts of the Energy Policy Act of 1992 on Industrial End Users of Electric Motor-Driven Systems

    Broader source: Energy.gov [DOE]

    Answers to frequently asked questions about the impacts of the Energy Policy Act of 1992 on industrial end users of electric motor-driven systems.

  7. Motors

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

    motor fails? When a motor fails, the user or owner faces three choices: to rewind to a lower efficiency; to rewind and maintain the original efficiency; or to replace it with a...

  8. FY2011 Advanced Power Electronics and Electric Motors Annual Progress Report

    SciTech Connect (OSTI)

    Rogers, Susan A.

    2012-01-31

    The Advanced Power Electronics and Electric Motors (APEEM) program within the DOE Vehicle Technologies Program (VTP) provides support and guidance for many cutting-edge automotive technologies now under development. Research is focused on developing revolutionary new power electronics (PE), electric motor (EM), thermal management, and traction drive system technologies that will leapfrog current on-the-road technologies. The research and development (R&D) is also aimed at achieving a greater understanding of and improvements in the way the various new components of tomorrow’s automobiles will function as a unified system to improve fuel efficiency.

  9. Vehicle Technologies Office: 2012 Advanced Power Electronics and Electric Motors R&D Annual Progress Report

    Broader source: Energy.gov [DOE]

    The Advanced Power Electronics and Electric Motors (APEEM) program within the DOE Vehicle Technologies Office (VTO) provides support and guidance for many cutting-edge automotive technologies now under development. Research is focused on developing revolutionary new power electronics (PE), electric motor (EM), thermal management, and traction drive system technologies that will leapfrog current on-the-road technologies. The research and development (R&D) is also aimed at achieving a greater understanding of and improvements in the way the various new components of tomorrows automobiles will function as a unified system to improve fuel efficiency.

  10. FY2012 Advanced Power Electronics and Electric Motors Annual Progress Report

    SciTech Connect (OSTI)

    Rogers, Susan A.

    2013-03-01

    The Advanced Power Electronics and Electric Motors (APEEM) program within the DOE Vehicle Technologies Office (VTO) provides support and guidance for many cutting-edge automotive technologies now under development. Research is focused on developing revolutionary new power electronics (PE), electric motor (EM), thermal management, and traction drive system technologies that will leapfrog current on-the-road technologies. The research and development is also aimed at achieving a greater understanding of and improvements in the way the various new components of tomorrow's automobiles will function as a unified system to improve fuel efficiency.

  11. EV Everywhere Grand Challenge - Electric Motors and Critical...

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

    ... due to an impending world wide RE shortage or be developed as RE-free magnet alloys Avg. ... R&D and RE- intensive electric vehicle engine production facilities to China since 2011 ...

  12. Motor stator using corner scraps for additional electrical components

    DOE Patents [OSTI]

    Hsu, John S.; Su, Gui-Jia; Adams, Donald J.; Nagashima, James M.; Stancu, Constantin; Carlson, Douglas S.; Smith, Gregory S.

    2004-03-16

    A method for making a motor and auxiliary devices with a unified stator body comprises providing a piece of material (10) having an area larger than a cross section of the stator (11), removing material from the piece of material (10) to form a pattern for a cross section of a core (11) for the stator, and removing material from the piece of material (10) outside the cross section of the core of the stator (11) to allow positioning of cores (22, 23, 24) for supporting windings (25, 26, 27) of least one additional electromagnetic device, such as a transformer (62) in a dc-to-dc converter (61, 62) that provides a low. voltage dc output. An article of manufacture made according to the invention is also disclosed and apparatus made with the method and article of manufacture are also disclosed.

  13. Vehicle Technologies Office: 2010 Advanced Power Electronics and Electric Motors R&D Annual Progress Report

    Broader source: Energy.gov [DOE]

    The APEEM subprogram within the DOE Vehicle Technologies Office (VTO) provides support and guidance for many cutting-edge automotive technologies now under development. Research is focused on developing revolutionary new power electronics (PE) and electric motor technologies that will leapfrog current on-the-road technologies.

  14. Motor Assembly Plant Saves $85,000 with Compressed Air System Improvements (Bodine Electric's Chicago Facility)

    SciTech Connect (OSTI)

    2001-06-01

    This case study is one in a series on industrial firms who are implementing energy efficient technologies and system improvements into their manufacturing processes. This case study documents the activities, savings, and lessons learned on the Bodine Electric motor assembly plant project.

  15. SSL Selections Descriptions v6.xls

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

    General Electric Niskayuna, NY 12309-1027 Optimized Phosphors for Warm-White LED Light Engines. GE Global Research, in collaboration with GE Lumination and the University of ...

  16. Low cost, compact high efficiency, traction motor for electric vehicles/hybrid electric vehicles. Final report for the period September 1998 - December 1999

    SciTech Connect (OSTI)

    Mitchell, Jerry; Kessinger, Roy

    2000-04-28

    This final report details technical accomplishments for Phase I of the ''Low Cost, Compact High Efficiency, Traction Motor for Electric Vehicles/Hybrid Electric Vehicles'' program. The research showed that the segmented-electromagnetic array (SEMA) technology combined with an Integrated Motion Module (IMM) concept is highly suited for electric vehicles. IMMs are essentially mechatronic systems that combine the motor, sensing, power electronics, and control functions for a single axis of motion into a light-weight modular unit. The functional integration of these components makes possible significant reductions in motor/alternator size, weight, and cost, while increasing power density and electromechanical conversion efficiency.

  17. FY2013 Advanced Power Electronics and Electric Motors R&D Annual Progress Report

    SciTech Connect (OSTI)

    Rogers, Susan A.

    2014-02-01

    The Advanced Power Electronics and Electric Motors (APEEM) technology area within the DOE Vehicle Technologies Office (VTO) provides support and guidance for many cutting-edge automotive technologies now under development. Research is focused on developing revolutionary new power electronics (PE), electric motor, and traction drive system (TDS) technologies that will leapfrog current on-the-road technologies, leading to lower cost and better efficiency in transforming battery energy to useful work. The research and development (R&D) is also aimed at achieving a greater understanding of and improvements in the way the various new components of tomorrow’s automobiles will function as a unified system to improve fuel efficiency through research in more efficient TDSs.

  18. Phase 1 STTR flywheel motor/alternator for hybrid electric vehicles. CRADA final report

    SciTech Connect (OSTI)

    McKeever, J.W.; Scudiere, M.B.; Ott, G.W. Jr.; White, C.P.; Kessinger, R.L. Jr.; Robinson, S.T.; Seymour, K.P.; Dockstadter, K.D.

    1997-12-31

    Visual Computing Systems (VCS) and the Oak Ridge National Laboratory (ORNL) have teamed, through a Phase 1 Small Business Technology Transfer (STTR) grant from the US Department of Energy (DOE), to develop an advanced, low-cost motor/alternator drive system suitable for Flywheel Energy Storage (FES) applications. During Phase 1, system performance and design requirements were established, design concepts were generated, and preliminary motor/alternator designs were developed and analyzed. ORNL provided mechanical design and finite element collaboration and Lynx Motion Technology, a spin-off from VCS to commercialize their technology, constructed a proof-of-concept axial-gap permanent magnet motor/alternator that employed their Segmented Electromagnetic Array (SEMA) with a survivable design speed potential of 10,000 rpm. The VCS motor/alternator was successfully tested in ORNL`s Motor Test Tank using an ORNL inverter and ORNL control electronics. It was first operated as an unloaded motor to 6,000 rpm and driven as an unloaded generator to 6,000 rpm. Output from the generator was then connected to a resistance bank, which caused the loaded generator to decelerate to 3,860 rpm where data was collected. After about 4-1/2 minutes, the test was terminated because of an impact noise. Subsequent inspection and operation at low speeds did not reveal the source of the noise. Electrical performance of the motor was excellent, encouraging continued development of this technology. Phase 2 efforts will focus on further design development and optimization, manufacturing development and prototype construction, testing, and evaluation.

  19. Energy Savings Potential and Opportunities for High-Efficiency Electric Motors in Residential and Commercial Equipment

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

    Opportunities for High-Efficiency Electric Motors in Residential and Commercial Equipment December 2013 i NOTICE This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government, nor any agency thereof, nor any of their employees, nor any of their contractors, subcontractors, or their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or

  20. FY2010 Annual Progress Report for Advanced Power Electronics and Electric Motors

    SciTech Connect (OSTI)

    Rogers, Susan A.

    2011-01-01

    The Advanced Power Electronics and Electric Machines (APEEM) subprogram within the Vehicle Technologies Program provides support and guidance for many cutting-edge automotive technologies now under development. Research is focused on developing revolutionary new power electronics (PE) and electric motor technologies that will leapfrog current on-the-road technologies. The research and development (R&D) is also aimed at achieving a greater understanding of and improvements in the way the various new components of tomorrow’s automobiles will function as a unified system to improve fuel efficiency.

  1. DOE Publishes Petition of CSA Group for Classification as a Nationally Recognized Certification Program for Small Electric Motors

    Broader source: Energy.gov [DOE]

    The Department of Energy has published a Federal Register notice of petition and request for public comments regarding CSA Group for classification as a nationally recognized certification program for small electric motors.

  2. Study of the Advantages of Internal Permanent Magnet Drive Motor with Selectable Windings for Hybrid-Electric Vehicles

    SciTech Connect (OSTI)

    Otaduy, P.J.; Hsu, J.S.; Adams, D.J.

    2007-11-30

    This report describes research performed on the viability of changing the effectively active number of turns in the stator windings of an internal permanent magnet (IPM) electric motor to strengthen or weaken the magnetic fields in order to optimize the motor's performance at specific operating speeds and loads. Analytical and simulation studies have been complemented with research on switching mechanisms to accomplish the task. The simulation studies conducted examine the power and energy demands on a vehicle following a series of standard driving cycles and the impact on the efficiency and battery size of an electrically propelled vehicle when it uses an IPM motor with turn-switching capabilities. Both full driving cycle electric propulsion and propulsion limited starting from zero to a set speed have been investigated.

  3. Motor torque compensation of an induction electric motor by adjusting a slip command during periods of supposed change in motor temperature

    DOE Patents [OSTI]

    Kelledes, William L.; St. John, Don K.

    1992-01-01

    The present invention maintains constant torque in an inverter driven AC induction motor during variations in rotor temperature. It is known that the torque output of a given AC induction motor is dependent upon rotor temperature. At rotor temperatures higher than the nominal operating condition the rotor impedance increases, reducing the rotor current and motor torque. In a similar fashion, the rotor impedance is reduced resulting in increased rotor current and motor torque when the rotor temperature is lower than the nominal operating condition. The present invention monitors the bus current from the DC supply to the inverter and adjusts the slip frequency of the inverter drive to maintain a constant motor torque. This adjustment is based upon whether predetermined conditions implying increased rotor temperature or decreased rotor temperature exist for longer that a predetermined interval of time.

  4. A Soft-Switching Inverter for High-Temperature Advanced Hybrid Electric Vehicle Traction Motor Drives

    SciTech Connect (OSTI)

    Lai, Jason; Yu, Wensong; Sun, Pengwei; Leslie, Scott; Prusia, Duane; Arnet, Beat; Smith, Chris; Cogan, Art

    2012-03-31

    The state-of-the-art hybrid electric vehicles (HEVs) require the inverter cooling system to have a separate loop to avoid power semiconductor junction over temperatures because the engine coolant temperature of 105°C does not allow for much temperature rise in silicon devices. The proposed work is to develop an advanced soft-switching inverter that will eliminate the device switching loss and cut down the power loss so that the inverter can operate at high-temperature conditions while operating at high switching frequencies with small current ripple in low inductance based permanent magnet motors. The proposed tasks also include high-temperature packaging and thermal modeling and simulation to ensure the packaged module can operate at the desired temperature. The developed module will be integrated with the motor and vehicle controller for dynamometer and in-vehicle testing to prove its superiority. This report will describe the detailed technical design of the soft-switching inverters and their test results. The experiments were conducted both in module level for the module conduction and switching characteristics and in inverter level for its efficiency under inductive and dynamometer load conditions. The performance will be compared with the DOE original specification.

  5. EA-1869: Supplement to General Motors Corp., Electric Vehicle/Battery Manufacturing Application, White Marsh, Maryland, and Wixom, Michigan (DOE/EA-1723-S1)

    Broader source: Energy.gov [DOE]

    Based on the analysis in the Environmental Assessment DOE determined that its proposed action, to award a federal grant to General Motors to establish an electric motor components manufacturing and electric drive assembly facility would result in no significant adverse impacts.

  6. Aurica Motors | Open Energy Information

    Open Energy Info (EERE)

    Aurica Motors Jump to: navigation, search Name: Aurica Motors Place: California Product: California-based Aurica Motors is planning to develop and manufacture an electric vehicle...

  7. Myers Motors | Open Energy Information

    Open Energy Info (EERE)

    Myers Motors Jump to: navigation, search Name: Myers Motors Place: Tallmadge, Ohio Zip: 44278 Sector: Vehicles Product: Myers Motors produces three wheeled electric vehicles....

  8. Subcontract Report: Final Report on Assessment of Motor Technologies for Traction Drives of Hybrid and Electric Vehicles (Subcontract #4000080341)

    SciTech Connect (OSTI)

    Fezzler, Raymond

    2011-03-01

    Currently, interior permanent magnet (IPM) motors with rare-earth (RE) magnets are almost universally used for hybrid and electric vehicles (EVs) because of their superior properties, particularly power density. However, there is now a distinct possibility of limited supply or very high cost of RE magnets that could make IPM motors unavailable or too expensive. Because development of electric motors is a critical part of the U.S. Department of Energy (DOE) Advanced Power Electronics and Motors activity, DOE needs to determine which options should be investigated and what barriers should be addressed. Therefore, in order to provide a basis for deciding which research topics should be pursued, an assessment of various motor technologies was conducted to determine which, if any, is potentially capable of meeting FreedomCAR 2015 and 2020 targets. Highest priority was given to IPM, surface mounted permanent magnet (SPM), induction, and switched reluctance (SR) motors. Also of interest, but with lesser emphasis, were wheel motors, multiple-rotor motors, motors with external excitation, and several others that emerged from the assessment. Cost and power density (from a design perspective, the power density criterion translates to torque density) are emerging as the two most important properties of motors for traction drives in hybrid and EVs, although efficiency and specific power also are very important. The primary approach for this assessment involved interviews with original equipment manufacturers (OEMs), their suppliers, and other technical experts. For each technology, the following issues were discussed: (1) The current state-of-the-art performance and cost; (2) Recent trends in the technology; (3) Inherent characteristics of the motor - which ones limit the ability of the technology to meet the targets and which ones aid in meeting the target; (4) What research and development (R&D) would be needed to meet the targets; and (5) The potential for the technology to

  9. Transistors for Electric Motor Drives: High-Performance GaN HEMT Modules for Agile Power Electronics

    SciTech Connect (OSTI)

    2010-09-01

    ADEPT Project: Transphorm is developing transistors with gallium nitride (GaN) semiconductors that could be used to make cost-effective, high-performance power converters for a variety of applications, including electric motor drives which transmit power to a motor. A transistor acts like a switch, controlling the electrical energy that flows around an electrical circuit. Most transistors today use low-cost silicon semiconductors to conduct electrical energy, but silicon transistors don’t operate efficiently at high speeds and voltage levels. Transphorm is using GaN as a semiconductor material in its transistors because GaN performs better at higher voltages and frequencies, and it is more energy efficient than straight silicon. However, Transphorm is using inexpensive silicon as a base to help keep costs low. The company is also packaging its transistors with other electrical components that can operate quickly and efficiently at high power levels—increasing the overall efficiency of both the transistor and the entire motor drive.

  10. EA-1723: General Motors LLC Electric Drive Vehicle Battery and Component Manufacturing Initiative Application White Marsh, Maryland and Wixom, Michigan

    Broader source: Energy.gov [DOE]

    DOE’s Proposed Action is to provide GM with $105,387,000 in financial assistance in a cost sharing arrangement to facilitate construction and operation of a manufacturing facility to produce electric motor components and assemble an electric drive unit. This Proposed Action through the Vehicle Technologies Program will accelerate the development and production of electric-drive vehicle systems and reduce the United States’ consumption of petroleum. This Proposed Action will also meaningfully assist in the nation’s economic recovery by creating manufacturing jobs in the United States in accordance with the objectives of the Recovery Act.

  11. Motor Repair Tech Brief

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

    ... This will assist in optimizing lubrication for your own ... Today's motors are more efficient. The National Electric ... and devices for assessing motor efficiency in the field. ...

  12. FY2014 Oak Ridge National Laboratory Annual Progress Report for the Power Electronics and Electric Motors Program

    SciTech Connect (OSTI)

    Ozpineci, Burak

    2014-11-01

    The US Department of Energy (DOE) announced in May 2011 a new cooperative research effort comprising DOE, the US Council for Automotive Research (composed of automakers Ford Motor Company, General Motors Company, and Chrysler Group), Tesla Motors, and representatives of the electric utility and petroleum industries. Known as U.S. DRIVE (Driving Research and Innovation for Vehicle efficiency and Energy sustainability), it represents DOE’s commitment to developing public–private partnerships to fund high-risk–high-reward research into advanced automotive technologies. The new partnership replaces and builds upon the partnership known as FreedomCAR (derived from “Freedom” and “Cooperative Automotive Research”) that ran from 2002 through 2010 and the Partnership for a New Generation of Vehicles initiative that ran from 1993 through 2001. Oak Ridge National Laboratory’s (ORNL’s) Advanced Power Electronics and Electric Motors (APEEM) subprogram within the DOE Vehicle Technologies Office (VTO) provides support and guidance for many cutting-edge automotive technologies now under development. Research is focused on developing revolutionary new power electronics (PE), electric motor, and traction drive system (TDS) technologies that will leapfrog current on-the-road technologies, leading to lower cost and better efficiency in transforming battery energy to useful work. The research and development (R&D) is also aimed at achieving a greater understanding of and improvements in the way the various new components of tomorrow’s automobiles will function as a unified system to improve fuel efficiency through research in more efficient TDSs.

  13. Straight and chopped dc performance data for a General Electric 5BT 2366C10 motor and an EV-1 controller. Final report

    SciTech Connect (OSTI)

    Edie, P.C.

    1981-01-01

    This report is intended to supply the electric vehicle manufacturer with performance data on the General Electric 5BT 2366C10 series wound dc motor and EV-1 chopper controller. Data are provided for both straight and chopped dc input to the motor, at 2 motor temperature levels. Testing was done at 6 voltage increments to the motor, and 2 voltage increments to the controller. Data results are presented in both tabular and graphical forms. Tabular information includes motor voltage and current input data, motor speed and torque output data, power data and temperature data. Graphical information includes torque-speed, motor power output-speed, torque-current, and efficiency-speed plots under the various operating conditions. The data resulting from this testing shows the speed-torque plots to have the most variance with operating temperature. The maximum motor efficiency is between 86% and 87%, regardless of temperature or mode of operation. When the chopper is utilized, maximum motor efficiency occurs when the chopper duty cycle approaches 100%. At low duty cycles the motor efficiency may be considerably less than the efficiency for straight dc. Chopper efficiency may be assummed to be 95% under all operating conditions. For equal speeds at a given voltage level, the motor operated in the chopped mode develops slightly more torque than it does in the straight dc mode. System block diagrams are included, along with test setup and procedure information.

  14. System and method for motor parameter estimation

    DOE Patents [OSTI]

    Luhrs, Bin; Yan, Ting

    2014-03-18

    A system and method for determining unknown values of certain motor parameters includes a motor input device connectable to an electric motor having associated therewith values for known motor parameters and an unknown value of at least one motor parameter. The motor input device includes a processing unit that receives a first input from the electric motor comprising values for the known motor parameters for the electric motor and receive a second input comprising motor data on a plurality of reference motors, including values for motor parameters corresponding to the known motor parameters of the electric motor and values for motor parameters corresponding to the at least one unknown motor parameter value of the electric motor. The processor determines the unknown value of the at least one motor parameter from the first input and the second input and determines a motor management strategy for the electric motor based thereon.

  15. PM Motor Parametric Design Analyses for a Hybrid Electric Vehicle Traction Drive Application

    SciTech Connect (OSTI)

    Staunton, R.H.

    2004-10-11

    The Department of Energy's (DOE) Office of FreedomCAR (Cooperative Automotive Research) and Vehicle Technologies office has a strong interest in making rapid progress in permanent magnet (PM) machine development. The DOE FreedomCAR program is directing various technology development projects that will advance the technology and hopefully lead to a near-term request for proposals (RFP) for a to-be-determined level of initial production. This aggressive approach is possible because the technology is clearly within reach and the approach is deemed essential, based on strong market demand, escalating fuel prices, and competitive considerations. In response, this study began parallel development paths that included a literature search/review, development and utilization of multiple parametric models, verification of the modeling methodology, development of an interior PM (IPM) machine baseline design, development of alternative machine baseline designs, and cost analyses for several candidate machines. This report summarizes the results of these activities as of September 2004. This report provides background and summary information for recent machine parametric studies and testing programs that demonstrate both the potential capabilities and technical limitations of brushless PM machines (axial gap and radial gap), the IPM machine, the surface-mount PM machines (interior or exterior rotor), induction machines, and switched-reluctance machines. The FreedomCAR program, while acknowledging the progress made by Oak Ridge National Laboratory (ORNL), Delphi, Delco-Remy International, and others in these programs, has redirected efforts toward a ''short path'' to a marketable and competitive PM motor for hybrid electric vehicle (HEV) traction applications. The program has developed a set of performance targets for the type of traction machine desired. The short-path approach entails a comprehensive design effort focusing on the IPM machine and meeting the performance targets

  16. PM Motor Parametric Design Analyses for Hybrid Electric Vehicle Traction Drive Application: Interim Report

    SciTech Connect (OSTI)

    Staunton, R.H.

    2004-08-11

    The Department of Energy's (DOE) Office of FreedomCAR (Cooperative Automotive Research) and Vehicle Technologies has a strong interest in making rapid progress in permanent magnet (PM) machine development. The program is directing various technology development projects that will advance the technology and lead to request for proposals (RFP) for manufacturer prototypes. This aggressive approach is possible because the technology is clearly within reach and the approach is deemed essential, based on strong market demand, escalating fuel prices, and competitive considerations. In response, this study began parallel development paths that included a literature search/review, development and utilization of multiple parametric models to determine the effects of design parameters, verification of the modeling methodology, development of an interior PM (IPM) machine baseline design, development of alternative machine baseline designs, and cost analyses for several candidate machines. This interim progress report summarizes the results of these activities as of June 2004. This report provides background and summary information for recent machine parametric studies and testing programs that demonstrate both the potential capabilities and technical limitations of brushless PM machines (axial gap and radial gap), the IPM machine, the surface-mount PM machines (interior or exterior rotor), induction machines, and switched reluctance machines. The FreedomCAR program, while acknowledging the progress made by Oak Ridge National Laboratory, Delphi, Delco-Remy International, and others in these programs, has redirected efforts toward a ''short path'' to a marketable and competitive PM motor for hybrid electric vehicle traction applications. The program has developed a set of performance targets for the type of traction machine desired. The short-path approach entails a comprehensive design effort focusing on the IPM machine and meeting the performance targets. The selection of the

  17. Electrically powered hand tool

    DOE Patents [OSTI]

    Myers, Kurt S.; Reed, Teddy R.

    2007-01-16

    An electrically powered hand tool is described and which includes a three phase electrical motor having a plurality of poles; an electrical motor drive electrically coupled with the three phase electrical motor; and a source of electrical power which is converted to greater than about 208 volts three-phase and which is electrically coupled with the electrical motor drive.

  18. MotorMaster+

    Broader source: Energy.gov [DOE]

    MotorMaster+ is a free online National Electrical Manufacturers Association (NEMA) Premium® efficiency motor selection and management tool that supports motor and motor systems planning by identifying the most efficient action for a given repair or motor purchase decision. The tool includes a catalog of more than 20,000 low-voltage induction motors, and features motor inventory management tools, maintenance log tracking, efficiency analysis, savings evaluation, energy accounting, and environmental reporting capabilities.

  19. EV Everywhere Workshop: Electric Motors and Critical Materials Breakout Group Report

    Broader source: Energy.gov [DOE]

    Presentation given at the EV Everywhere Grand Challenge - Electric Drive (Power Electronics and Electric Machines) Workshop on July 24, 2012 held at the Doubletree O'Hare, Chicago, IL.

  20. Cost Effective, High Efficiency Integrated Systems Approach to Auxilliary Electric Motors

    SciTech Connect (OSTI)

    Roy Kessinger Jr.; Keith Seymour; Kanchan Angal; Jason Wolf; Steve Brewer; Leonard Schrank

    2003-09-26

    The CARAT program, carried out by Kinetic Art & Technology Corporation (KAT), has been one of the most commercially successful KAT R&D programs to date. Based on previous development of its technology, KAT designed, constructed and tested a highly efficient motor and controller system under this CARAT program with supplemental commercial funding. Throughout this CARAT effort, the technical objectives have been refined and refocused. Some objectives have been greatly expanded, while others have been minimized. The determining factor in all decisions to refocus the objectives was the commercial need, primarily the needs of KAT manufacturing partners. Several companies are employing the resulting CARAT motor and controller designs in prototypes for commercial products. Two of these companies have committed to providing cost share in order to facilitate the development. One of these companies is a major manufacturing company developing a revolutionary new family of products requiring the ultra-high system efficiency achievable by the KAT motor and controller technologies (known as Segmented ElectroMagnetic Array, or SEMA technology). Another company requires the high efficiency, quiet operation, and control characteristics afforded by the same basic motor and controller for an advanced air filtration product. The combined annual production requirement projected by these two companies exceeds one million units by 2005.

  1. OIT Forest Products Motor Challenge Industry Profile: Motor System...

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

    ... ANNUAL MOTOR SYSTEM ELECTRICITY SAVINGS FOR SIC 26 The greatest opportunities for motor system savings are in the pump systems, particularly for substituting speed control for ...

  2. Vehicle Technologies Office Merit Review 2015: Electric Motor Thermal Management R&D

    Office of Energy Efficiency and Renewable Energy (EERE)

    Presentation given by National Renewable Energy Laboratory at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about electric...

  3. Electrostatic generator/motor having rotors of varying thickness and a central stator electrically connected together into two groups

    DOE Patents [OSTI]

    Post, Richard F.

    2010-11-16

    A sub-module consists of a set of two outer sets of stationary fan-blade-shaped sectors. These outer sectors include conductive material and are maintained at ground potential in several examples. Located midway between them is a set of stationary sector plates with each plate being electrically insulated from the others. An example provides that the inner sector plates are connected together alternately, forming two groups of parallel-connected condensers that are then separately connected, through high charging circuit resistances, to a source of DC potential with respect to ground, with an additional connecting lead being provided for each group to connect their output as an AC output to a load. These same leads can he used, when connected to a driver circuit, to produce motor action.

  4. BSA Motors | Open Energy Information

    Open Energy Info (EERE)

    BSA Motors Jump to: navigation, search Name: BSA Motors Place: India Product: India-based maker of 2-wheel electric scooters. References: BSA Motors1 This article is a stub. You...

  5. Development of Ultra-Efficient Electric Motors Final Technical Report Covering work from April 2002 through September 2007

    SciTech Connect (OSTI)

    Rich Schiferl

    2008-05-30

    High temperature superconducting (HTS) motors offer the potential for dramatic volume and loss reduction compared to conventional, high horspower, industrial motors. This report is the final report on the results of eight research tasks that address some of the issues related to HTS motor development that affect motor efficiency, cost, and reliability.

  6. Comparison of a synergetic battery pack drive system to a pulse width modulated AC induction motor drive for an electric vehicle

    SciTech Connect (OSTI)

    Davis, A.; Salameh, Z.M.; Eaves, S.S.

    1999-06-01

    A new battery configuration technique and accompanying control circuitry, termed a Synergetic Battery Pack (SBP), is designed to work with Lithium batteries, and can be used as both an inverter for an electric vehicle AC induction motor drive and as a battery charger. In this paper, the performance of a Synergetic Battery Pack during motor drive operation is compared via computer simulation with a conventional motor drive which uses sinusoidal pulse width modulation (SPWM) to determine its effectiveness as a motor drive. The study showed that the drive efficiency was compatible with the conventional system, and offered a significant advantage in the lower frequency operating ranges. The voltage total harmonic distortion (THD) of the SBP was significantly lower than the PWM drive output, but the current THD was slightly higher due to the shape of the harmonic spectrum. In conclusion, the SBP is an effective alternative to a conventional drive, but the real advantage lies in its battery management capabilities and charger operation.

  7. Method for assessing motor insulation on operating motors

    DOE Patents [OSTI]

    Kueck, John D.; Otaduy, Pedro J.

    1997-01-01

    A method for monitoring the condition of electrical-motor-driven devices. The method is achieved by monitoring electrical variables associated with the functioning of an operating motor, applying these electrical variables to a three phase equivalent circuit and determining non-symmetrical faults in the operating motor based upon symmetrical components analysis techniques.

  8. Method for assessing motor insulation on operating motors

    DOE Patents [OSTI]

    Kueck, J.D.; Otaduy, P.J.

    1997-03-18

    A method for monitoring the condition of electrical-motor-driven devices is disclosed. The method is achieved by monitoring electrical variables associated with the functioning of an operating motor, applying these electrical variables to a three phase equivalent circuit and determining non-symmetrical faults in the operating motor based upon symmetrical components analysis techniques. 15 figs.

  9. Hybrid vehicle motor alignment

    SciTech Connect (OSTI)

    Levin, Michael Benjamin

    2001-07-03

    A rotor of an electric motor for a motor vehicle is aligned to an axis of rotation for a crankshaft of an internal combustion engine having an internal combustion engine and an electric motor. A locator is provided on the crankshaft, a piloting tool is located radially by the first locator to the crankshaft. A stator of the electric motor is aligned to a second locator provided on the piloting tool. The stator is secured to the engine block. The rotor is aligned to the crankshaft and secured thereto.

  10. MotorMaster+ International | Department of Energy

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

    volt amps (kVA) readings Edit and modify motor rewind efficiency loss defaults Determine ... a National Electrical Manufacturers Association (NEMA) Premium efficiency motor. ...

  11. Advanced Motors

    SciTech Connect (OSTI)

    Knoth, Edward A; Chelluri, Bhanumathi; Schumaker, Edward J

    2012-12-14

    vProject Summary Transportation energy usage is predicted to increase substantially by 2020. Hybrid vehicles and fuel cell powered vehicles are destined to become more prominent as fuel prices rise with the demand. Hybrid and fuel cell vehicle platforms are both dependent on high performance electric motors. Electric motors for transportation duty will require sizeable low-speed torque to accelerate the vehicle. As motor speed increases, the torque requirement decreases which results in a nearly constant power motor output. Interior permanent magnet synchronous motors (IPMSM) are well suited for this duty. , , These rotor geometries are configured in straight lines and semi circular arc shapes. These designs are of limited configurations because of the lack of availability of permanent magnets of any other shapes at present. We propose to fabricate rotors via a novel processing approach where we start with magnet powders and compact them into a net shape rotor in a single step. Using this approach, widely different rotor designs can be implemented for efficiency. The current limitation on magnet shape and thickness will be eliminated. This is accomplished by co-filling magnet and soft iron powders at specified locations in intricate shapes using specially designed dies and automatic powder filling station. The process fundamentals for accomplishing occurred under a previous Applied Technology Program titled, Motors and Generators for the 21st Century. New efficient motor designs that are not currently possible (or cost prohibitive) can be accomplished by this approach. Such an approach to motor fabrication opens up a new dimension in motor design. Feasibility Results We were able to optimize a IPMSM rotor to take advantage of the powder co-filling and DMC compaction processing methods. The minimum low speed torque requirement of 5 N-m can be met through an optimized design with magnet material having a Br capability of 0.2 T. This level of magnetic performance can

  12. Electric Motor Thermal Management

    Broader source: Energy.gov [DOE]

    2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation

  13. Electric Motor Thermal Management

    Broader source: Energy.gov [DOE]

    2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

  14. Electric Motor Thermal Management

    Broader source: Energy.gov [DOE]

    2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

  15. Apparatus and method for servicing an elongated suspended pump motor in an electric power plant with limited access

    DOE Patents [OSTI]

    Chavez, R.V.; Ekeroth, D.E.; Johnson, F.T.; Matusz, J.M.

    1994-04-26

    Elongated coolant pumps suspended under steam generators within containment in a power plant with limited access space, are removed and replaced by an elongated maintenance cart with an elongated opening along one side in which the motor is received. Rollers support the cart for conveying the elongated motor in an upright position out from under the steam generator and onto an elevator. The elevator is lowered to transfer support of the cart and motor through trunnions to saddles straddling the elevator for rotation of the cart to a generally horizontal position. The elevator then raises the horizontally disposed cart carrying the motor to a higher floor where it is rolled off the elevator and out through the auxiliary equipment hatch. 14 figures.

  16. Apparatus and method for servicing an elongated suspended pump motor in an electric power plant with limited access

    DOE Patents [OSTI]

    Chavez, Rossemary V.; Ekeroth, Douglas E.; Johnson, F. Thomas; Matusz, John M.

    1994-01-01

    Elongated coolant pumps suspended under steam generators within containment in a power plant with limited access space, are removed and replaced by an elongated maintenance cart with an elongated opening along one side in which the motor is received. Rollers support the cart for conveying the elongated motor in an upright position out from under the steam generator and onto an elevator. The elevator is lowered to transfer support of the cart and motor through trunnions to saddles straddling the elevator for rotation of the cart to a generally horizontal position. The elevator then raises the horizontally disposed cart carrying the motor to a higher floor where it is rolled off the elevator and out through the auxiliary equipment hatch.

  17. AGNI Motors | Open Energy Information

    Open Energy Info (EERE)

    India Zip: 370 230 Sector: Vehicles Product: UK-based manufacturer of DC Motors and Battery Management Systems for Electric Vehicles References: AGNI Motors1 This article is a...

  18. A Guide to AC Motor Repair and Replacement

    SciTech Connect (OSTI)

    2004-03-01

    This booklet provides helpful information for making informed repair or replace decisions for electric motors.

  19. EVO Electric Limited | Open Energy Information

    Open Energy Info (EERE)

    Greater London, United Kingdom Zip: GU21 5JY Product: EVO Electric Limited develops electrical motors and generators for use in gensets, powertrains, and traction motors in...

  20. Vehicle Technologies Office Merit Review 2015: North American Electric Traction Drive Supply Chain Analysis: Focus on Motors

    Broader source: Energy.gov [DOE]

    Presentation given by Synthesis Partners at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about North American electric...

  1. Motor monitoring method and apparatus using high frequency current components

    DOE Patents [OSTI]

    Casada, Donald A.

    1996-01-01

    A motor current analysis method and apparatus for monitoring electrical-motor-driven devices. The method and apparatus utilize high frequency portions of the motor current spectra to evaluate the condition of the electric motor and the device driven by the electric motor. The motor current signal produced as a result of an electric motor is monitored and the low frequency components of the signal are removed by a high-pass filter. The signal is then analyzed to determine the condition of the electrical motor and the driven device.

  2. Motor monitoring method and apparatus using high frequency current components

    DOE Patents [OSTI]

    Casada, D.A.

    1996-05-21

    A motor current analysis method and apparatus for monitoring electrical-motor-driven devices are disclosed. The method and apparatus utilize high frequency portions of the motor current spectra to evaluate the condition of the electric motor and the device driven by the electric motor. The motor current signal produced as a result of an electric motor is monitored and the low frequency components of the signal are removed by a high-pass filter. The signal is then analyzed to determine the condition of the electrical motor and the driven device. 16 figs.

  3. Magnetically Coupled Adjustable Speed Motor Drives - Motor Tip Sheet #13

    SciTech Connect (OSTI)

    2008-07-01

    Alternating current electric motors rotate at a nearly constant speed that is determined by motor design and line frequency. Energy savings of 50% or more may be available when fixed speed systems are modified to allow the motor speed to match variable load requirements of a centrifugal fan or pump.

  4. MotorMaster+ User Manual | Department of Energy

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

    User Manual MotorMaster+ User Manual This user manual is designed to help users understand the MotorMaster+ software tool. MotorMaster+ User Manual (1.92 MB) More Documents & Publications MotorMaster+ International Fact Sheet Replacing an Oversized and Underloaded Electric Motor MotorMaster+ Fact Sheet

  5. Microsoft Word - FY2014_HAB_WorkPlan_v6.doc

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

    Hanford Advisory Board FY2014 Work Plan - "A" List These are the priority topics that the Board is expected to take action on in FY2014, as agreed to by the TPA and the Board. The timing of these topics drives the need for committee meetings. Their status may change to "topics of interest" if they are delayed or deferred, and if there is agreement to do so among the EIC and Agency Liaisons. 8/30/2013 v.6 Page 7 of 11 Priority Topics - "A" List Policy Level Issues

  6. Motor current signature analysis method for diagnosing motor operated devices

    DOE Patents [OSTI]

    Haynes, Howard D.; Eissenberg, David M.

    1990-01-01

    A motor current noise signature analysis method and apparatus for remotely monitoring the operating characteristics of an electric motor-operated device such as a motor-operated valve. Frequency domain signal analysis techniques are applied to a conditioned motor current signal to distinctly identify various operating parameters of the motor driven device from the motor current signature. The signature may be recorded and compared with subsequent signatures to detect operating abnormalities and degradation of the device. This diagnostic method does not require special equipment to be installed on the motor-operated device, and the current sensing may be performed at remote control locations, e.g., where the motor-operated devices are used in accessible or hostile environments.

  7. Microsoft PowerPoint - EIA-930 EIA Conference Presentation draft v6.pptx

    U.S. Energy Information Administration (EIA) Indexed Site

    5 EIA Energy Conference June 15, 2015 | Washington, DC Stan Kaplan and April Lee Office of Electricity, Renewables, and Uranium Statistics EIA-930 Hourly Electricity Balancing Authority Data EIA clearinghouse of hourly electric power data in 2015 2 * EIA is implementing a new survey of hourly electric power data from the 67 electric systems (balancing authorities) in the contiguous United States that make up the national grid. (EIA-930) * Data collection began in March 2015 with a handful of BAs

  8. Jing Jin Electric JJE | Open Energy Information

    Open Energy Info (EERE)

    Beijing Municipality, China Sector: Vehicles Product: Develops and manufactures high-performance electric motors and electric drive components for hybrid electric vehicles (HEV),...

  9. NREL: Learning - Hybrid Electric Vehicle Basics

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

    Series design-In this design, the primary engine is connected to a generator that produces electricity. The electricity charges the batteries, which drive an electric motor that ...

  10. Motor Packaging with Consideration of Electromagnetic and Material...

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

    Documents & Publications Motor Packaging with Consideration of Electromagnetic and Material Characteristics Alnico and Ferrite Hybrid Excitation Electric Machines Wireless Charging

  11. Rare-Earth-Free Nanostructure Magnets: Rare-Earth-Free Permanent Magnets for Electric Vehicle Motors and Wind Turbine Generators: Hexagonal Symmetry Based Materials Systems Mn-Bi and M-type Hexaferrite

    SciTech Connect (OSTI)

    2012-01-01

    REACT Project: The University of Alabama is developing new iron- and manganese-based composite materials for use in the electric motors of EVs and renewable power generators that will demonstrate magnetic properties superior to todays best rare-earth-based magnets. Rare earths are difficult and expensive to refine. EVs and renewable power generators typically use rare earths to make their electric motors smaller and more powerful. The University of Alabama has the potential to improve upon the performance of current state-of-the-art rare-earth-based magnets using low-cost and more abundant materials such as manganese and iron. The ultimate goal of this project is to demonstrate improved performance in a full-size prototype magnet at reduced cost.

  12. Mission Motors Company | Open Energy Information

    Open Energy Info (EERE)

    Place: San Francisco, California Zip: 94103 Product: San Francisco-based electric Motorcycle manufacturer. References: Mission Motors Company1 This article is a stub. You can...

  13. Submersible canned motor transfer pump

    DOE Patents [OSTI]

    Guardiani, Richard F.; Pollick, Richard D.; Nyilas, Charles P.; Denmeade, Timothy J.

    1997-01-01

    A transfer pump used in a waste tank for transferring high-level radioactive liquid waste from a waste tank and having a column assembly, a canned electric motor means, and an impeller assembly with an upper impeller and a lower impeller connected to a shaft of a rotor assembly. The column assembly locates a motor housing with the electric motor means adjacent to the impeller assembly which creates an hydraulic head, and which forces the liquid waste, into the motor housing to cool the electric motor means and to cool and/or lubricate the radial and thrust bearing assemblies. Hard-on-hard bearing surfaces of the bearing assemblies and a ring assembly between the upper impeller and electric motor means grind large particles in the liquid waste flow. Slots in the static bearing member of the radial bearing assemblies further grind down the solid waste particles so that only particles smaller than the clearances in the system can pass therethrough, thereby resisting damage to and the interruption of the operation of the transfer pump. The column assembly is modular so that sections can be easily assembled, disassembled and/or removed. A second embodiment employs a stator jacket which provides an alternate means for cooling the electric motor means and lubricating and/or cooling the bearing assemblies, and a third embodiment employs a variable level suction device which allows liquid waste to be drawn into the transfer pump from varying and discrete levels in the waste tank.

  14. Segmented rail linear induction motor

    DOE Patents [OSTI]

    Cowan, M. Jr.; Marder, B.M.

    1996-09-03

    A segmented rail linear induction motor has a segmented rail consisting of a plurality of nonferrous electrically conductive segments aligned along a guideway. The motor further includes a carriage including at least one pair of opposed coils fastened to the carriage for moving the carriage. A power source applies an electric current to the coils to induce currents in the conductive surfaces to repel the coils from adjacent edges of the conductive surfaces. 6 figs.

  15. Segmented rail linear induction motor

    DOE Patents [OSTI]

    Cowan, Jr., Maynard; Marder, Barry M.

    1996-01-01

    A segmented rail linear induction motor has a segmented rail consisting of a plurality of nonferrous electrically conductive segments aligned along a guideway. The motor further includes a carriage including at least one pair of opposed coils fastened to the carriage for moving the carriage. A power source applies an electric current to the coils to induce currents in the conductive surfaces to repel the coils from adjacent edges of the conductive surfaces.

  16. Magnetically Coupled Adjustable Speed Motor Drives

    Broader source: Energy.gov [DOE]

    Alternating current electric motors rotate at a nearly constant speed that is determined by motor design and line frequency. Energy savings of 50% or more may be available when fixed speed systems are modified to allow the motor speed to match variable load requirements of a centrifugal fan or pump. This tip sheet describes the advantages of magnetically coupled ASDs and provides suggested actions.

  17. ELECTRIC

    Office of Legacy Management (LM)

    ELECTRIC cdrtrokArJclaeT 3 I+ &i, y$ \I &OF I*- j< t j,fci..- ir )(yiT !E-li, ( \-,v? Cl -p/4.4 RESEARCH LABORATORIES EAST PITTSBURGH, PA. 8ay 22, 1947 Mr. J. Carrel Vrilson General ?!!mager Atomic Qxzgy Commission 1901 Constitution Avenue Kashington, D. C. Dear Sir: In the course of OUT nuclenr research we are planning to study the enc:ri;y threshold anti cross section for fission. For thib program we require a s<>piAroted sample of metallic Uranium 258 of high purity. A

  18. Motor-operated gearbox efficiency

    SciTech Connect (OSTI)

    DeWall, K.G.; Watkins, J.C.; Bramwell, D.; Weidenhamer, G.H.

    1996-12-01

    Researchers at the Idaho National Engineering Laboratory recently conducted tests investigating the operating efficiency of the power train (gearbox) in motor-operators typically used in nuclear power plants to power motor-operated valves. Actual efficiency ratios were determined from in-line measurements of electric motor torque (input to the operator gearbox) and valve stem torque (output from the gearbox) while the operators were subjected to gradually increasing loads until the electric motor stalled. The testing included parametric studies under reduced voltage and elevated temperature conditions. As part of the analysis of the results, the authors compared efficiency values determined from testing to the values published by the operator manufacturer and typically used by the industry in calculations for estimating motor-operator capabilities. The operators they tested under load ran at efficiencies lower than the running efficiency (typically 50%) published by the operator manufacturer.

  19. Submersible canned motor mixer pump

    DOE Patents [OSTI]

    Guardiani, Richard F.; Pollick, Richard D.

    1997-01-01

    A mixer pump used in a waste tank for mobilizing high-level radioactive liquid waste having a column assembly containing power cables, a motor housing with electric motor means which includes a stator can of a stator assembly and a rotor can of a rotor assembly, and an impeller assembly with an impeller connected to a shaft of the rotor assembly. The column assembly locates the motor housing with the electric motor means adjacent to the impeller which creates an hydraulic head, and which forces the liquid waste into the motor housing to cool the electric motor means and to lubricate radial and thrust bearing assemblies. Hard-on-hard bearing surfaces of the bearing assemblies and a ring assembly between the impeller and electric motor means act to grind down large particles in the liquid waste flow. These larger particles are received in slots in the static bearing members of the radial bearing assemblies. Only solid waste particles smaller than the clearances in the system can pass therethrough, thereby resisting damage to and the interruption of the operation of the mixer pump.

  20. Submersible canned motor mixer pump

    DOE Patents [OSTI]

    Guardiani, R.F.; Pollick, R.D.

    1997-10-07

    A mixer pump is described used in a waste tank for mobilizing high-level radioactive liquid waste having a column assembly containing power cables, a motor housing with electric motor means which includes a stator can of a stator assembly and a rotor can of a rotor assembly, and an impeller assembly with an impeller connected to a shaft of the rotor assembly. The column assembly locates the motor housing with the electric motor means adjacent to the impeller which creates an hydraulic head, and which forces the liquid waste into the motor housing to cool the electric motor means and to lubricate radial and thrust bearing assemblies. Hard-on-hard bearing surfaces of the bearing assemblies and a ring assembly between the impeller and electric motor means act to grind down large particles in the liquid waste flow. These larger particles are received in slots in the static bearing members of the radial bearing assemblies. Only solid waste particles smaller than the clearances in the system can pass there through, thereby resisting damage to and the interruption of the operation of the mixer pump. 10 figs.

  1. Electric Motors and Critical Materials

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

    ranges) Barriers Interfering with Reaching the Targets * Rare earth magnet costs * Copper plus high-temperature insulation costs * Temperature dependence of demagnetization * ...

  2. Electric Motor R&D

    Broader source: Energy.gov [DOE]

    2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

  3. Optimizing Your Motor-Driven System | Department of Energy

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

    Your Motor-Driven System Optimizing Your Motor-Driven System This fact sheet presents an overview of electric drive systems and highlights common ways you can improve motor system efficiency and reliability. By optimizing the efficiency of your motor-driven systems, you can increase productivity while saving significant amounts of energy and money. Optimizing Your Motor Driven System (September 1996) (86.29 KB) More Documents & Publications When to Purchase Premium Efficiency Motors Energy

  4. UQM Patents Non-Rare Earth Magnet Motor under DOE-Supported Project...

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

    ... this week. | Photo courtesy of INL. EV Technology Accelerates in Colorado The General Motors Baltimore Operations facility at White Marsh is producing electric motors for the ...

  5. Powertrain system for a hybrid electric vehicle

    DOE Patents [OSTI]

    Reed, Jr., Richard G. (Royal Oak, MI); Boberg, Evan S. (Hazel Park, MI); Lawrie, Robert E. (Whitmore Lake, MI); Castaing, Francois J. (Bloomfield Township, MI)

    1999-08-31

    A hybrid electric powertrain system is provided including an electric motor/generator drivingly engaged with the drive shaft of a transmission. The electric is utilized for synchronizing the rotation of the drive shaft with the driven shaft during gear shift operations. In addition, a mild hybrid concept is provided which utilizes a smaller electric motor than typical hybrid powertrain systems. Because the electric motor is drivingly engaged with the drive shaft of the transmission, the electric motor/generator is driven at high speed even when the vehicle speed is low so that the electric motor/generator provides more efficient regeneration.

  6. Powertrain system for a hybrid electric vehicle

    DOE Patents [OSTI]

    Reed, R.G. Jr.; Boberg, E.S.; Lawrie, R.E.; Castaing, F.J.

    1999-08-31

    A hybrid electric powertrain system is provided including an electric motor/generator drivingly engaged with the drive shaft of a transmission. The electric is utilized for synchronizing the rotation of the drive shaft with the driven shaft during gear shift operations. In addition, a mild hybrid concept is provided which utilizes a smaller electric motor than typical hybrid powertrain systems. Because the electric motor is drivingly engaged with the drive shaft of the transmission, the electric motor/generator is driven at high speed even when the vehicle speed is low so that the electric motor/generator provides more efficient regeneration. 34 figs.

  7. Demodulation circuit for AC motor current spectral analysis

    DOE Patents [OSTI]

    Hendrix, Donald E.; Smith, Stephen F.

    1990-12-18

    A motor current analysis method for the remote, noninvasive inspection of electric motor-operated systems. Synchronous amplitude demodulation and phase demodulation circuits are used singly and in combination along with a frequency analyzer to produce improved spectral analysis of load-induced frequencies present in the electric current flowing in a motor-driven system.

  8. Final-Publication-inttech_v6_n34_2013_paged.pdf

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

    International Journal on Advances in Internet Technology, vol 6 no 3 & 4, year 2013, http://www.iariajournals.org/internet_technology/ 2013, © Copyright by authors, Published under agreement with IARIA - www.iaria.org On How to Provision Virtual Circuits for Network-Redirected Large-Sized, High-Rate Flows Zhenzhen Yan, Malathi Veeraraghavan Dept. of Electrical and Computer Engineering University of Virginia Charlottesville, VA, USA Email: {zy4d,mvee}@virginia.edu Chris Tracy, Chin Guok

  9. Microsoft Word - 2016 PV Systems Symposium - Save the Date v6.docx

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

    Sandia/EPRI PV Symposium - Save the Date! Save the Date and Call for Abstracts Sandia-EPRI 2016 PV Systems Symposium May 9-11 th at the Biltmore Hotel in Santa Clara, CA Sandia National Laboratories (SNL) and the Electric Power Research Institute (EPRI) are delighted to host this symposium on the technical challenges and opportunities related to solar photovoltaic (PV) systems and technologies. Core areas of focus will include PV performance modeling, distribution hosting capacity and screening

  10. Microsoft Word - Impact_DSR_on_Transmission_PlanningV6.docx

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

    568 LBNL - XXXX Impacts of Demand-Side Resources on Electric Transmission Planning Stanton W. Hadley, Oak Ridge National Laboratory Alan H. Sanstad, Lawrence Berkeley National Laboratory January 2015 Approved for public release: distribution is unlimited. DOCUMENT AVAILABILITY Reports produced after January 1, 1996, are generally available free via US Department of Energy (DOE) SciTech Connect. Website http://www.osti.gov/scitech/ Reports produced before January 1, 1996, may be purchased by

  11. EERE Success Story-UQM Patents Non-Rare Earth Magnet Motor under...

    Office of Environmental Management (EM)

    for electric, hybrid electric, plug-in hybrid electric and fuel cell electric vehicles recently patented a new design for electric vehicle motors that use non-rare earth magnets. ...

  12. Method for assessing in-service motor efficiency and in-service motor/load efficiency

    DOE Patents [OSTI]

    Kueck, John D.; Otaduy, Pedro J.

    1997-01-01

    A method and apparatus for assessing the efficiency of an in-service motor. The operating characteristics of the in-service motor are remotely measured. The operating characteristics are then applied to an equivalent circuit for electrical motors. Finally the equivalent circuit is evaluated to determine the performance characteristics of said in-service motor. Based upon the evaluation an individual is able to determine the rotor speed, power output, efficiency, and toque of the in-service motor. Additionally, an individual is able to confirm the calculations by comparing measured values with values obtained as a result of the motor equivalent circuit evaluation.

  13. Submersible canned motor transfer pump

    DOE Patents [OSTI]

    Guardiani, R.F.; Pollick, R.D.; Nyilas, C.P.; Denmeade, T.J.

    1997-08-19

    A transfer pump is described which is used in a waste tank for transferring high-level radioactive liquid waste from a waste tank and having a column assembly, a canned electric motor means, and an impeller assembly with an upper impeller and a lower impeller connected to a shaft of a rotor assembly. The column assembly locates a motor housing with the electric motor means adjacent to the impeller assembly which creates an hydraulic head, and which forces the liquid waste, into the motor housing to cool the electric motor means and to cool and/or lubricate the radial and thrust bearing assemblies. Hard-on-hard bearing surfaces of the bearing assemblies and a ring assembly between the upper impeller and electric motor means grind large particles in the liquid waste flow. Slots in the static bearing member of the radial bearing assemblies further grind down the solid waste particles so that only particles smaller than the clearances in the system can pass there through, thereby resisting damage to and the interruption of the operation of the transfer pump. The column assembly is modular so that sections can be easily assembled, disassembled and/or removed. A second embodiment employs a stator jacket which provides an alternate means for cooling the electric motor means and lubricating and/or cooling the bearing assemblies, and a third embodiment employs a variable level suction device which allows liquid waste to be drawn into the transfer pump from varying and discrete levels in the waste tank. 17 figs.

  14. Power Charging and Supply System for Electric Vehicles - Energy...

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

    DescriptionThe technology integrates the battery-charging function into the electrical motor drive system. By using only the onboard inverter and motor without adding any inductors ...

  15. Electric drive mechanism for vehicles

    SciTech Connect (OSTI)

    Bader, C.

    1983-06-21

    An electric drive mechanism is disclosed for vehicles, especially buses with overhead trolley routes, which routes are provided with relatively short interruptions in the overhead trolley. The drive mechanism includes a flywheel two externally excited electric motors which are adapted to be switched over from prime mover operation to generator operation, and which motors are effective as a ward-leonard drive during flywheel operation. The first electric motor is constructed for half of a maximum drive power and the second electric motor is likewise constructed for half or for square root 2/2 times the maximum drive power. Both electric motors are connected electrically in parallel during operation from the main electrical supply. The first and second motors are electrically connected in parallel during operation of the vehicle from the main electrical supply when a change-speed transmission is provided for connecting a drive shaft of one of the motors with driven vehicle wheels. A planetary gear transmission and a further transmission are provided for mechanically connecting the drive shaft of one of the motors with the second motor and with the flywheel.

  16. Piezoelectric wave motor

    DOE Patents [OSTI]

    Yerganian, Simon Scott

    2003-02-11

    A piezoelectric motor having a stator in which piezoelectric elements are contained in slots formed in the stator transverse to the desired wave motion. When an electric field is imposed on the elements, deformation of the elements imposes a force perpendicular to the sides of the slot, deforming the stator. Appropriate frequency and phase-shifting of the electric field will produce a wave in the stator and motion in a rotor. In a preferred aspect, the piezoelectric elements are configured so that deformation of the elements in the direction of an imposed electric field, generally referred to as the d.sub.33 direction, is utilized to produce wave motion in the stator. In a further aspect, the elements are compressed into the slots so as to minimize tensile stresses on the elements in use.

  17. Piezoelectric wave motor

    DOE Patents [OSTI]

    Yerganian, Simon Scott

    2001-07-17

    A piezoelectric motor having a stator in which piezoelectric elements are contained in slots formed in the stator transverse to the desired wave motion. When an electric field is imposed on the elements, deformation of the elements imposes a force perpendicular to the sides of the slot, deforming the stator. Appropriate frequency and phase shifting of the electric field will produce a wave in the stator and motion in a rotor. In a preferred aspect, the piezoelectric elements are configured so that deformation of the elements in direction of an imposed electric field, generally referred to as the d.sub.33 direction, is utilized to produce wave motion in the stator. In a further aspect, the elements are compressed into the slots so as to minimize tensile stresses on the elements in use.

  18. Motor Packaging with Consideration of Electromagnetic and Material...

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

    Ferrite Hybrid Excitation Electric Machines Motor Packaging with Consideration of Electromagnetic and Material Characteristics Novel Flux Coupling Machine without Permanent Magnets

  19. Sensor Network for Motor Energy Management | Department of Energy

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

    Remote Sensing Electric Motor Operation Optimizes Maintenance and Energy Efficiency ... and the additional benefits of optimized preventative maintenance and improved uptime. ...

  20. New Energy Efficiency Standards for Electric Motors and Walk-in Coolers and Freezers to Save on Energy Bills and Reduce Carbon Pollution

    Broader source: Energy.gov [DOE]

    These standards combined will help reduce harmful carbon pollution by up to 158 million metric tons – equivalent to the annual electricity use of more than 21 million homes – and save businesses $26 billion on utility bills through 2030.

  1. Avoid Nuisance Tripping with Premium Efficiency Motors

    Broader source: Energy.gov [DOE]

    In most cases, upgrading to premium efficiency motors has no noticeable impact on the electrical system. However, in rare cases nuisance trips can occur during start-up. Addressing this topic requires an understanding of starting current.This tip sheet discusses how to avoid nuisance tripping with premium efficiency motors and provides suggested actions.

  2. Therma motor

    DOE Patents [OSTI]

    Kandarian, R.

    The disclosure is directed to a thermal motor utilizing two tapered prestressed parallel adjacent cylinders lengthwise disposed about one third in a coolant. Heat is applied to contacting portions of the cylinders outside the coolant to cause them to deform and turn. Heat sources such as industrial waste heat, geothermal hot water, solar radiation, etc. can be used.

  3. Electric turbocompound control system

    DOE Patents [OSTI]

    Algrain, Marcelo C.

    2007-02-13

    Turbocompound systems can be used to affect engine operation using the energy in exhaust gas that is driving the available turbocharger. A first electrical device acts as a generator in response to turbocharger rotation. A second electrical device acts as a motor to put mechanical power into the engine, typically at the crankshaft. Apparatus, systems, steps, and methods are described to control the generator and motor operations to control the amount of power being recovered. This can control engine operation closer to desirable parameters for given engine-related operating conditions compared to actual. The electrical devices can also operate in "reverse," going between motor and generator functions. This permits the electrical device associated with the crankshaft to drive the electrical device associated with the turbocharger as a motor, overcoming deficient engine operating conditions such as associated with turbocharger lag.

  4. Tesla Motors Inc | Open Energy Information

    Open Energy Info (EERE)

    Vehicles Product: California-based producer of luxury electric vehicles, such as sports cars. References: Tesla Motors Inc1 This article is a stub. You can help OpenEI by...

  5. Electric vehicles

    SciTech Connect (OSTI)

    Not Available

    1990-03-01

    Quiet, clean, and efficient, electric vehicles (EVs) may someday become a practical mode of transportation for the general public. Electric vehicles can provide many advantages for the nation's environment and energy supply because they run on electricity, which can be produced from many sources of energy such as coal, natural gas, uranium, and hydropower. These vehicles offer fuel versatility to the transportation sector, which depends almost solely on oil for its energy needs. Electric vehicles are any mode of transportation operated by a motor that receives electricity from a battery or fuel cell. EVs come in all shapes and sizes and may be used for different tasks. Some EVs are small and simple, such as golf carts and electric wheel chairs. Others are larger and more complex, such as automobile and vans. Some EVs, such as fork lifts, are used in industries. In this fact sheet, we will discuss mostly automobiles and vans. There are also variations on electric vehicles, such as hybrid vehicles and solar-powered vehicles. Hybrid vehicles use electricity as their primary source of energy, however, they also use a backup source of energy, such as gasoline, methanol or ethanol. Solar-powered vehicles are electric vehicles that use photovoltaic cells (cells that convert solar energy to electricity) rather than utility-supplied electricity to recharge the batteries. This paper discusses these concepts.

  6. Cooling devices and methods for use with electric submersible pumps

    DOE Patents [OSTI]

    Jankowski, Todd A; Hill, Dallas D

    2014-12-02

    Cooling devices for use with electric submersible pump motors include a refrigerator attached to the end of the electric submersible pump motor with the evaporator heat exchanger accepting all or a portion of the heat load from the motor. The cooling device can be a self-contained bolt-on unit, so that minimal design changes to existing motors are required.

  7. Reduced vibration motor winding arrangement

    DOE Patents [OSTI]

    Slavik, C.J.; Rhudy, R.G.; Bushman, R.E.

    1997-11-11

    An individual phase winding arrangement having a sixty electrical degree phase belt width for use with a three phase motor armature includes a delta connected phase winding portion and a wye connected phase winding portion. Both the delta and wye connected phase winding portions have a thirty electrical degree phase belt width. The delta and wye connected phase winding portions are each formed from a preselected number of individual coils each formed, in turn, from an unequal number of electrical conductor turns in the approximate ratio of {radical}3. The individual coils of the delta and wye connected phase winding portions may either be connected in series or parallel. This arrangement provides an armature winding for a three phase motor which retains the benefits of the widely known and utilized thirty degree phase belt concept, including improved mmf waveform and fundamental distribution factor, with consequent reduced vibrations and improved efficiency. 4 figs.

  8. Reduced vibration motor winding arrangement

    DOE Patents [OSTI]

    Slavik, Charles J.; Rhudy, Ralph G.; Bushman, Ralph E.

    1997-01-01

    An individual phase winding arrangement having a sixty electrical degree phase belt width for use with a three phase motor armature includes a delta connected phase winding portion and a wye connected phase winding portion. Both the delta and wye connected phase winding portions have a thirty electrical degree phase belt width. The delta and wye connected phase winding portions are each formed from a preselected number of individual coils each formed, in turn, from an unequal number of electrical conductor turns in the approximate ratio of .sqroot.3. The individual coils of the delta and wye connected phase winding portions may either be connected in series or parallel. This arrangement provides an armature winding for a three phase motor which retains the benefits of the widely known and utilized thirty degree phase belt concept, including improved mmf waveform and fundamental distribution factor, with consequent reduced vibrations and improved efficiency.

  9. U.S. Department of Energy's Motor Challenge Program: A National Strategy

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

    for Energy Efficient Industrial Motor-Driven Systems | Department of Energy Department of Energy's Motor Challenge Program: A National Strategy for Energy Efficient Industrial Motor-Driven Systems U.S. Department of Energy's Motor Challenge Program: A National Strategy for Energy Efficient Industrial Motor-Driven Systems This brief discusses the opportunities, industry needs, and market drivers associated with improving industrial electric motor-driven systems. The key strategies and tactics

  10. Pulp and Paper Mills: Profiting from Efficient Motor System Use |

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

    Department of Energy Pulp and Paper Mills: Profiting from Efficient Motor System Use Pulp and Paper Mills: Profiting from Efficient Motor System Use This 2-page fact sheet describes The Paper and Allied Products Industry spending to operate electric motor systems and opportunities to reduce these costs. Pulp and Paper Mills: Profiting from Efficient Motor System Use (January 1999) (70.34 KB) More Documents & Publications Bandwidth Study U.S. Pulp and Paper Manufacturing United States

  11. Thermoelectric generator for motor vehicle

    DOE Patents [OSTI]

    Bass, John C.

    1997-04-29

    A thermoelectric generator for producing electric power for a motor vehicle from the heat of the exhaust gasses produced by the engine of the motor vehicle. The exhaust gasses pass through a finned heat transfer support structure which has seat positions on its outside surface for the positioning of thermoelectric modules. A good contact cylinder provides a framework from which a spring force can be applied to the thermoelectric modules to hold them in good contact on their seats on the surface of the heat transfer support structure.

  12. Reactor coolant pump testing using motor current signatures analysis

    SciTech Connect (OSTI)

    Burstein, N.; Bellamy, J.

    1996-12-01

    This paper describes reactor coolant pump motor testing carried out at Florida Power Corporation`s Crystal River plant using Framatome Technologies` new EMPATH (Electric Motor Performance Analysis and Trending Hardware) system. EMPATH{trademark} uses an improved form of Motor Current Signature Analysis (MCSA), technology, originally developed at Oak Ridge National Laboratories, for detecting deterioration in the rotors of AC induction motors. Motor Current Signature Analysis (MCSA) is a monitoring tool for motor driven equipment that provides a non-intrusive means for detecting the presence of mechanical and electrical abnormalities in the motor and the driven equipment. The base technology was developed at the Oak Ridge National Laboratory as a means for determining the affects of aging and service wear specifically on motor-operated valves used in nuclear power plant safety systems, but it is applicable to a broad range of electric machinery. MCSA is based on the recognition that an electric motor (ac or dc) driving a mechanical load acts as an efficient and permanently available transducer by sensing mechanical load variations, large and small, long-term and rapid, and converting them into variations in the induced current generated in the motor windings. The motor current variations, resulting from changes in load caused by gears, pulleys, friction, bearings, and other conditions that may change over the life of the motor, are carried by the electrical cables powering the motor and are extracted at any convenient location along the motor lead. These variations modulate the 60 Hz carrier frequency and appear as sidebands in the spectral plot.

  13. Q-Sync Motors in Commercial Refrigeration. Preliminary Test Results and Projected Benefits

    SciTech Connect (OSTI)

    Fricke, Brian A.; Becker, Bryan R.

    2015-09-01

    This report provides background information on various fractional-horsepower electric motor technologies, summarizes initial data from a DOE-sponsored Q-Sync motor demonstration project, and extrapolates that data to project the potential economic and environmental benefits resulting from upgrading the current installed base of 9–12 W evaporator fan motors to Q-Sync motors.

  14. Denton Municipal Electric- Standard Offer Rebate Program

    Broader source: Energy.gov [DOE]

    Within the GreenSense program, Denton Municipal Electric's Standard Offer Program provides rebates to large commercial and industrial customers for lighting retrofits, HVAC upgrades and motor...

  15. Moteck Electric Corp | Open Energy Information

    Open Energy Info (EERE)

    Name: Moteck Electric Corp Place: Taipei Hsien, Taiwan Zip: 22101 Product: Taipei-based firm focusing on motorized systems. The firm also produces PV junction boxes. References:...

  16. Walcot Electric Machines | Open Energy Information

    Open Energy Info (EERE)

    Efficiency Product: A spin-out from Bath University which that will develop and licence process relating to high efficiency electric motors for fixed speed applications, and will...

  17. NREL: Transportation Research - Hybrid Electric Fleet Vehicle...

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

    an energy storage system, and an electric motor to achieve a combination of emissions, ... This collected energy is used to propel the vehicle during normal drive cycles. The ...

  18. Funding Opportunity: Next Generation Electric Machines: Megawatt...

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

    speed, direct drive, megawatt (MW) class electric motors for efficiency and power density improvements in three primary areas: (1) chemical and petroleum refining industries; (2) ...

  19. Argonne Lab's Breakthrough Cathode Technology Powers Electric...

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

    ... company named Tesla Motors was incorporated in 2003 with the goal of increasing the number of electric vehicles bought by mainstream consumers. The Tesla Roadster, the ...

  20. Vehicle Technologies Office: 2015 Electric Drive Technologies...

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

    automotive technologies under development. Research is focused on developing power electronics (PE), electric motor, and traction drive system (TDS) technologies that will ...

  1. Protean Electric Ltd | Open Energy Information

    Open Energy Info (EERE)

    Sector: Vehicles Product: UK-based designer and manufacturer of a smaller, lighter motor systems for electric vehicles along with control power electronics for those systems....

  2. Continuous Energy Improvement in Motor Driven Systems

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

    Continuous Energy Improvement in Motor Driven Systems A GUIDEBOOK FOR INDUSTRY Continuous Energy Improvement in Motor Driven Systems DISCLAIMER This publication was prepared by the Washington State University Energy Program and the National Renewable Energy Laboratory for the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy. Neither the United States, DOE, the Copper Development Association, the Washington State University Energy Program, National Electrical

  3. Vehicle Technologies Office: 2011 Advanced Power Electronics and Electric

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

    Motors R&D Annual Progress Report | Department of Energy Power Electronics and Electric Motors R&D Annual Progress Report Vehicle Technologies Office: 2011 Advanced Power Electronics and Electric Motors R&D Annual Progress Report The Advanced Power Electronics and Electric Motors (APEEM) program within the DOE Vehicle Technologies Office (VTO) provides support and guidance for many cutting-edge automotive technologies now under development. Research is focused on developing

  4. Vehicle Technologies Office: 2013 Advanced Power Electronics and Electric

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

    Motors R&D Annual Progress Report | Department of Energy Power Electronics and Electric Motors R&D Annual Progress Report Vehicle Technologies Office: 2013 Advanced Power Electronics and Electric Motors R&D Annual Progress Report The Advanced Power Electronics and Electric Motors (APEEM) technology area within the DOE Vehicle Technologies Office (VTO) provides support and guidance for many cutting-edge automotive technologies now under development. Research is focused on

  5. Electric Fuel Pump Condition Monitor System Using Electricalsignature Analysis

    DOE Patents [OSTI]

    Haynes, Howard D [Knoxville, TN; Cox, Daryl F [Knoxville, TN; Welch, Donald E [Oak Ridge, TN

    2005-09-13

    A pump diagnostic system and method comprising current sensing probes clamped on electrical motor leads of a pump for sensing only current signals on incoming motor power, a signal processor having a means for buffering and anti-aliasing current signals into a pump motor current signal, and a computer having a means for analyzing, displaying, and reporting motor current signatures from the motor current signal to determine pump health using integrated motor and pump diagnostic parameters.

  6. U.S. DOE Motor System Market Assessment

    Broader source: Energy.gov [DOE]

    AMO is leading a new Motor System Market Assessment (MSMA) to better understand opportunities for energy efficiency improvement in motors and motor-driven systems, which are essential to a wide array of industrial applications. Machine driven processes such as pumps, fans, compressed air, and materials handling and processing accounted for 68% of electricity use (2,840 TBtu direct use) by U.S. manufacturing in 2010. The new assessment will document the efficiency opportunities for motors and motor driven systems and propel market uptake of best practices and technologies designed to address these opportunities.

  7. Advanced motor driven clamped borehole seismic receiver

    DOE Patents [OSTI]

    Engler, B.P.; Sleefe, G.E.; Striker, R.P.

    1993-02-23

    A borehole seismic tool is described including a borehole clamp which only moves perpendicular to the borehole. The clamp is driven by an electric motor, via a right angle drive. When used as a seismic receiver, the tool has a three part housing, two of which are hermetically sealed. Accelerometers or geophones are mounted in one hermetically sealed part, the electric motor in the other hermetically sealed part, and the clamp and right angle drive in the third part. Preferably the tool includes cable connectors at both ends. Optionally a shear plate can be added to the clamp to extend the range of the tool.

  8. General Motors | Open Energy Information

    Open Energy Info (EERE)

    Motors Jump to: navigation, search Name: General Motors Place: Detroit, MI Website: www.generalmotors.com References: General Motors1 Information About Partnership with NREL...

  9. Motor Systems | Department of Energy

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

    Technical Assistance Motor Systems Motor Systems Dramatic energy and cost savings can be achieved in motor systems by applying best energy management practices and purchasing ...

  10. Celebrating Electric Vehicles | Department of Energy

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

    Electric Vehicles Celebrating Electric Vehicles September 29, 2015 - 4:01pm Addthis The United States has the largest electric vehicle fleet in the world, which includes cars like the Chevrolet Volt. | Photo courtesy of General Motors The United States has the largest electric vehicle fleet in the world, which includes cars like the Chevrolet Volt. | Photo courtesy of General Motors Paul Lester Paul Lester Digital Content Specialist, Office of Public Affairs KEY FACTS More than 1 million plug-in

  11. Extend the Operating Life of Your Motor | Department of Energy

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

    Extend the Operating Life of Your Motor Extend the Operating Life of Your Motor Certain components of motors degrade with time and operating stress. Electrical insulation weakens over time with exposure to voltage unbalance, over and undervoltage, voltage disturbances, and temperature. Contact between moving surfaces causes wear. Wear is affected by dirt, moisture, and corrosive fumes and is greatly accelerated when lubricant is misapplied, becomes overheated or contaminated, or is not replaced

  12. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

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

    Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Print Monday, 28 November 2011 14:52 Movement is fundamental to life. It...

  13. Permanent-Magnet Adjustable-Speed Motors John S . Hsu (Htsui...

    Office of Scientific and Technical Information (OSTI)

    ... February, 1990, pp. 34 - 40. 20 Anthony Lopez, "Brushless DC Motor," Study Report, Oak ... Westinghouse Electric Corporation, and later for the University of Texas at Austin. Dr. ...

  14. Electric Vehicles | Department of Energy

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

    ... Tesla: In January 2010, the Department of Energy issued a 465 million loan to Tesla Motors to produce specially designed, all-electric plug-in vehicles and to develop a ...

  15. Electric vehicles | Open Energy Information

    Open Energy Info (EERE)

    existence in the mid-19th century, when electricity was among the preferred methods for motor vehicle propulsion, providing a level of comfort and ease of operation that could not...

  16. Electric Motor Architecture R&D

    Broader source: Energy.gov [DOE]

    2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

  17. Replacing an Oversized and Underloaded Electric Motor

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

    ventilation and air-conditioning (HVAC) systems generally operate at 70% to 75% of rated ... Below 50% load, the amperage curve becomes increasingly nonlinear and is therefore not a ...

  18. Condition monitoring of machinery using motor current signature analysis

    SciTech Connect (OSTI)

    Kryter, R.C.; Haynes, H.D.

    1989-01-01

    Motor current signature analysis (MCSA) is a powerful monitoring tool for motor-driven equipment that provides a nonintrusive means for detecting the presence of mechanical and electrical abnormalities in the motor and the driven equipment, including altered conditions in the process ''downstream'' of the motor-driven equipment. It was developed at the Oak Ridge National Laboratory as a means for determining the effects of aging and service wear systems, but it is applicable to a broad range of machinery. MCSA is based on the recognition that an electric motor (ac or dc) driving a mechanical load acts as an efficient and permanently available transducer by sensing mechanical load variations, large and small, long-term and rapid, and converting them into variations in the induced current generated in the motor windings. These motor current variations are carried by the electrical cables processes as desired. Motor current signatures, obtained in both time and over time to provide early indication of degradation. Successful applications of MCSA technology (patent applied for) include not only motor-operated valves but also pumps of various designs, blowers, and air conditioning systems. Examples are presented briefly, and speculation regarding the applicability of MCSA to a broader range of equipment monitoring and production line testing is also given. 1 ref., 13 figs.

  19. Online Monitoring of Induction Motors

    SciTech Connect (OSTI)

    McJunkin, Timothy R.; Agarwal, Vivek; Lybeck, Nancy Jean

    2016-01-01

    The online monitoring of active components project, under the Advanced Instrumentation, Information, and Control Technologies Pathway of the Light Water Reactor Sustainability Program, researched diagnostic and prognostic models for alternating current induction motors (IM). Idaho National Laboratory (INL) worked with the Electric Power Research Institute (EPRI) to augment and revise the fault signatures previously implemented in the Asset Fault Signature Database of EPRI’s Fleet Wide Prognostic and Health Management (FW PHM) Suite software. Induction Motor diagnostic models were researched using the experimental data collected by Idaho State University. Prognostic models were explored in the set of literature and through a limited experiment with 40HP to seek the Remaining Useful Life Database of the FW PHM Suite.

  20. Integration of Novel Flux Coupling Motor and Current Source Inverter |

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

    Department of Energy ape034_hsu_2011_p.pdf (317.88 KB) More Documents & Publications Integration of Novel Flux Coupling Motor and Current Source Inverter Novel Flux Coupling Machine without Permanent Magnets John Hsu, Oak Ridge National Laboratory, Flux Coupling Machines and Switched Reluctance Motors to Replace Permanent Magnets in Electric Vehicles

  1. Using Electricity",,,"Electricity Consumption",,,"Electricity...

    U.S. Energy Information Administration (EIA) Indexed Site

    . Total Electricity Consumption and Expenditures, 2003" ,"All Buildings* Using Electricity",,,"Electricity Consumption",,,"Electricity Expenditures" ,"Number of Buildings...

  2. Motor Current Data Collection System

    Energy Science and Technology Software Center (OSTI)

    1992-12-01

    The Motor Current Data Collection System (MCDCS) uses IBM compatible PCs to collect, process, and store Motor Current Signature information.

  3. MotorMaster+ Fact Sheet

    Office of Energy Efficiency and Renewable Energy (EERE)

    Fact sheet describing how industrial plants can improve their motor system performance using AMO's MotorMaster+ software tool.

  4. Motor/generator

    DOE Patents [OSTI]

    Hickam, Christopher Dale

    2008-05-13

    A motor/generator is provided for connecting between a transmission input shaft and an output shaft of a prime mover. The motor/generator may include a motor/generator housing, a stator mounted to the motor/generator housing, a rotor mounted at least partially within the motor/generator housing and rotatable about a rotor rotation axis, and a transmission-shaft coupler drivingly coupled to the rotor. The transmission-shaft coupler may include a clamp, which may include a base attached to the rotor and a plurality of adjustable jaws.

  5. EV Everywhere: Electric Drive Systems Bring Power to Plug-in...

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

    the first time a domestic automaker is building electric motors for an electric vehicle ... electric drive system in a plug-in electric vehicle bridges two different types of energy. ...

  6. Motorized support jack

    DOE Patents [OSTI]

    Haney, Steven J. (Tracey, CA); Herron, Donald Joe (Manteca, CA)

    2001-01-01

    A compact, vacuum compatible motorized jack for supporting heavy loads and adjusting their positions is provided. The motorized jack includes: (a) a housing having a base; (b) a first roller device that provides a first slidable surface and that is secured to the base; (c) a second roller device that provides a second slidable surface and that has an upper surface; (d) a wedge that is slidably positioned between the first roller device and the second roller device so that the wedge is in contact with the first slidable surface and the second slidable surface; (e) a motor; and (d) a drive mechanism that connects the motor and the wedge to cause the motor to controllably move the wedge forwards or backwards. Individual motorized jacks can support and lift of an object at an angle. Two or more motorized jacks can provide tip, tilt and vertical position adjustment capabilities.

  7. Motorized support jack

    DOE Patents [OSTI]

    Haney, Steven J.; Herron, Donald Joe

    2003-05-13

    A compact, vacuum compatible motorized jack for supporting heavy loads and adjusting their positions is provided. The motorized jack includes: (a) a housing having a base; (b) a first roller device that provides a first slidable surface and that is secured to the base; (c) a second roller device that provides a second slidable surface and that has an upper surface; (d) a wedge that is slidably positioned between the first roller device and the second roller device so that the wedge is in contact with the first slidable surface and the second slidable surface; (e) a motor; and (d) a drive mechanism that connects the motor and the wedge to cause the motor to controllably move the wedge forwards or backwards. Individual motorized jacks can support and lift of an object at an angle. Two or more motorized jacks can provide tip, tilt and vertical position adjustment capabilities.

  8. INSPECTION MEANS FOR INDUCTION MOTORS

    DOE Patents [OSTI]

    Williams, A.W.

    1959-03-10

    an appartus is descripbe for inspcting electric motors and more expecially an appartus for detecting falty end rings inn suqirrel cage inductio motors while the motor is running. In its broua aspects, the mer would around ce of reference tedtor means also itons in the phase ition of the An electronic circuit for conversion of excess-3 binary coded serial decimal numbers to straight binary coded serial decimal numbers is reported. The converter of the invention in its basic form generally coded pulse words of a type having an algebraic sign digit followed serially by a plurality of decimal digits in order of decreasing significance preceding a y algebraic sign digit followed serially by a plurality of decimal digits in order of decreasing significance. A switching martix is coupled to said input circuit and is internally connected to produce serial straight binary coded pulse groups indicative of the excess-3 coded input. A stepping circuit is coupled to the switching matrix and to a synchronous counter having a plurality of x decimal digit and plurality of y decimal digit indicator terminals. The stepping circuit steps the counter in synchornism with the serial binary pulse group output from the switching matrix to successively produce pulses at corresponding ones of the x and y decimal digit indicator terminals. The combinations of straight binary coded pulse groups and corresponding decimal digit indicator signals so produced comprise a basic output suitable for application to a variety of output apparatus.

  9. Halbach array DC motor/generator

    DOE Patents [OSTI]

    Merritt, B.T.; Dreifuerst, G.R.; Post, R.F.

    1998-01-06

    A new configuration of DC motor/generator is based on a Halbach array of permanent magnets. This motor does not use ferrous materials so that the only losses are winding losses and losses due to bearings and windage. An ``inside-out`` design is used as compared to a conventional motor/generator design. The rotating portion, i.e., the rotor, is on the outside of the machine. The stationary portion, i.e., the stator, is formed by the inside of the machine. The rotor contains an array of permanent magnets that provide a uniform field. The windings of the motor are placed in or on the stator. The stator windings are then ``switched`` or ``commutated`` to provide a DC motor/generator much the same as in a conventional DC motor. The commutation can be performed by mechanical means using brushes or by electronic means using switching circuits. The invention is useful in electric vehicles and adjustable speed DC drives. 17 figs.

  10. Halbach array DC motor/generator

    DOE Patents [OSTI]

    Merritt, Bernard T.; Dreifuerst, Gary R.; Post, Richard F.

    1998-01-01

    A new configuration of DC motor/generator is based on a Halbach array of permanent magnets. This motor does not use ferrous materials so that the only losses are winding losses and losses due to bearings and windage. An "inside-out" design is used as compared to a conventional motor/generator design. The rotating portion, i.e., the rotor, is on the outside of the machine. The stationary portion, i.e., the stator, is formed by the inside of the machine. The rotor contains an array of permanent magnets that provide a uniform field. The windings of the motor are placed in or on the stator. The stator windings are then "switched" or "commutated" to provide a DC motor/generator much the same as in a conventional DC motor. The commutation can be performed by mechanical means using brushes or by electronic means using switching circuits. The invention is useful in electric vehicles and adjustable speed DC drives.

  11. Empire Electric Association- Commercial Energy Efficiency Credit Program

    Broader source: Energy.gov [DOE]

    Empire Electric Association provides rebates for its commercial customers who upgrade to energy efficient lighting, HVAC equipment, and motors. These rebates are offered in conjunction with Tri...

  12. Fuel Cell Electric Vehicles: Paving the Way to Commercial Success...

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

    Powered by a fuel cell system with light-weight, high-pressure hydrogen tanks, an electric motor, a ... Automakers have made steady progress reducing the cost and ...

  13. AMO FOA Targets Advanced Components for Next-Generation Electric...

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

    high power density and energy efficient megawatt (MW) class electric motors in three primary areas: (1) chemical and petroleum refining industries; (2) natural gas ...

  14. Mountain View Electric Association, Inc - Energy Efficiency Credit...

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

    75 for controlled unit, additional 25 for lifetime warranty Marathon Water Heater: 300unit, plus 2gallon Electric Motor: 10hp RefrigeratorFreezer: 40 Clothes Washer: 40...

  15. When to Purchase Premium Efficiency Motors

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

    Premium Efficiency Motors Consider premium effciency motors for new motor procurements when specifying motor-driven equipment, repairing or rewinding failed standard effciency ...

  16. Using Electricity",,,"Electricity Consumption",,,"Electricity...

    U.S. Energy Information Administration (EIA) Indexed Site

    A. Total Electricity Consumption and Expenditures for All Buildings, 2003" ,"All Buildings Using Electricity",,,"Electricity Consumption",,,"Electricity Expenditures" ,"Number of...

  17. Electricity",,,"Electricity Consumption",,,"Electricity Expenditures...

    U.S. Energy Information Administration (EIA) Indexed Site

    C9. Total Electricity Consumption and Expenditures, 1999" ,"All Buildings Using Electricity",,,"Electricity Consumption",,,"Electricity Expenditures" ,"Number of Buildings...

  18. Electricity",,,"Electricity Consumption",,,"Electricity Expenditures...

    U.S. Energy Information Administration (EIA) Indexed Site

    DIV. Total Electricity Consumption and Expenditures by Census Division, 1999" ,"All Buildings Using Electricity",,,"Electricity Consumption",,,"Electricity Expenditures" ,"Number...

  19. Report on Toyota Prius Motor Thermal Management

    SciTech Connect (OSTI)

    Hsu, J.S.

    2005-02-11

    In the current hybrid vehicle market, the Toyota Prius drive system is considered the leader in electrical, mechanical, and manufacturing innovations. It is a significant accomplishment that Toyota is able to manufacture and sell the vehicle for a profit. The Toyota Prius traction motor design approach for reducing manufacturing costs and the motor s torque capability have been studied and tested. The findings were presented in two previous Oak Ridge National Laboratory (ORNL) reports. The conclusions from this report reveal, through temperature rise tests, that the 2004 Toyota Prius (THSII) motor is applicable only for use in a hybrid automobile. It would be significantly undersized if used in a fuel cell vehicle application. The power rating of the Prius motor is limited by the permissible temperature rise of the motor winding (170 C) and the motor cooling oil (158 C). The continuous ratings at base speed (1200 rpm) with different coolant temperatures are projected from test data at 900 rpm. They are approximately 15 kW with 105 C coolant and 21 kW with 35 C coolant. These continuous ratings are much lower than the 30 kW specified as a technical motor target of the U.S. Department of Energy FreedomCAR Program. All tests were conducted at about 24 C ambient temperature. The load angle of each torque adjustment was monitored to prevent a sudden stop of the motor if the peak torque were exceeded, as indicated by the load angle in the region greater than 90 electrical degrees. For peak power with 400 Nm torque at 1200 rpm, the permissible running time depends upon the initial winding temperature condition. The projected rate of winding temperature rise is approximately 2.1 C/sec. The cooling-oil temperature does not change much during short peak power operation. For light and medium load situations, the efficiency varies from 80% to above 90%, and the power factor varies from 70% to above 90%, depending on the load and speed. When the motor is loaded heavily near the

  20. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

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

    Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Print Monday, 28 November 2011 14:52 Movement is fundamental to life. It takes place even at the cellular level where cargo is continually being transported by motor proteins. These tiny machines convert the energy gained from hydrolysing ATP into a series of small conformational changes that allow them to literally "walk" along microscopic tracks. Motor proteins (in the kinesin

  1. Stepping motor controller

    DOE Patents [OSTI]

    Bourret, S.C.; Swansen, J.E.

    1982-07-02

    A stepping motor is microprocessor controlled by digital circuitry which monitors the output of a shaft encoder adjustably secured to the stepping motor and generates a subsequent stepping pulse only after the preceding step has occurred and a fixed delay has expired. The fixed delay is variable on a real-time basis to provide for smooth and controlled deceleration.

  2. Stepping motor controller

    DOE Patents [OSTI]

    Bourret, Steven C.; Swansen, James E.

    1984-01-01

    A stepping motor is microprocessingly controlled by digital circuitry which monitors the output of a shaft encoder adjustably secured to the stepping motor and generates a subsequent stepping pulse only after the preceding step has occurred and a fixed delay has expired. The fixed delay is variable on a real-time basis to provide for smooth and controlled deceleration.

  3. Improve Motor System Performance with MotorMaster+

    SciTech Connect (OSTI)

    2010-08-01

    Fact sheet describes how industrial plants can improve their motor system performance using DOE-AMO's MotorMaster+ software tool.

  4. The Role of Reluctance in PM Motors

    SciTech Connect (OSTI)

    Otaduy, P.J.

    2005-06-16

    The international research community has lately focused efforts on interior permanent magnet (IPM) motors to produce a traction motor for hybrid electric vehicles (HEV). One of the beneficial features of this technology is the additional torque produced by reluctance. The objective of this report is to analytically describe the role that reluctance plays in permanent magnet (PM) motors, to explore ways to increase reluctance torque without sacrificing the torque produced by the PMs, and to compare three IPM configurations with respect to torque, power, amount of magnet material required (cost), and percentage of reluctance torque. Results of this study will be used to determine future research directions in utilizing reluctance to obtain maximum torque and power while using a minimum amount of magnet material.

  5. Aptera Motors | Open Energy Information

    Open Energy Info (EERE)

    Aptera Motors Jump to: navigation, search Name: Aptera Motors Address: 2778 Loker Avenue West Place: Carlsbad, California Zip: 92008 Region: Southern CA Area Sector: Vehicles...

  6. AQWON Motors | Open Energy Information

    Open Energy Info (EERE)

    search Name: AQWON-Motors Place: Speinshart, Germany Zip: 92676 Sector: Hydro, Hydrogen Product: AQWON-Motors has developed the first hydrogen powered 2 stroke-engine...

  7. Brandl Motor | Open Energy Information

    Open Energy Info (EERE)

    Brandl Motor Jump to: navigation, search Name: Brandl Motor Address: Calvinstr 24 Place: Berlin Zip: 10557 Region: Germany Sector: Marine and Hydrokinetic Phone Number: +49 30 39...

  8. Motor VFDs | Open Energy Information

    Open Energy Info (EERE)

    VFDs Jump to: navigation, search TODO: Add description List of Motor VFDs Incentives Retrieved from "http:en.openei.orgwindex.php?titleMotorVFDs&oldid521368" Feedback...

  9. Hybrid Electric Vehicle Basics | NREL

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

    Hybrid Electric Vehicle Basics Today's hybrid electric vehicles (HEVs) range from small passenger cars to sport utility vehicles (SUVs) and large trucks. Though they often look just like conventional vehicles, HEVs usually include an electric motor as well as a small internal combustion engine (ICE). This combination provides greater fuel economy and fewer emissions than most conventional ICE vehicles do. Photo of the front and part of the side of a bus parked at the curb of a city street with

  10. Improve Motor System Efficiency for a Broad Range of Motors with MotorMaster+ International

    SciTech Connect (OSTI)

    2005-05-01

    Available at no charge, MotorMaster+ International is designed to support motor systems improvement planning at industrial facilities by identifying the most cost-effective choice when deciding to repair or replace older motor models.

  11. Corona and Motor Voltage Interim Report

    SciTech Connect (OSTI)

    Hsu, J.S.

    2005-05-06

    It has been suggested that to meet the FreedomCAR objectives for cost, size, weight, efficiency, and reliability higher buss voltages be utilized in HEV and FC automotive applications. The reasoning is that since electric power is equal to the product of voltage and current for a given power a higher voltage and lower current would result in smaller cable and inverter switching components. Consequently, the system can be lighter and smaller. On the other hand, higher voltages are known to require better and thicker electrical insulation that reduce the available slot area for motor windings. One cause of slow insulation breakdown is corona that gradually erodes the insulation and shortens the life expectancy of the motor. This study reports on the results of a study on corona initiating voltages for mush-wound and bobbin-wound stators. A unique testing method is illustrated.

  12. Design of wheel motor using Maxwell 2D simulation

    SciTech Connect (OSTI)

    Chen, G.H.; Tseng, K.J.

    1995-12-31

    This paper presents a high efficiency direct wheel motor drive for electric vehicles (EVs). The proposed motor is a permanent magnet square-wave motor whose rotor with rare earth magnets forms the outside of the motor to be set within each rear wheel tire to realize the direct drive. The inner stator with its windings is rigidly linked to the suspension and frame structure of the vehicle. In order to achieve the direct drive without any mechanical transmission for EVs, the wheel motor has been designed as a low-speed high-torque motor. The design and optimization of the motor was done with the aid of finite element electromagnetic field analysis using the Maxwell 2D Simulator software. The motor parameters and characteristics can be accurately calculated and predicted in terms of field computation and analysis results. The design procedure of the 6.6 kW, 1,000 rpm wheel motor and its technical data are given in this paper.

  13. Energy efficient motor application

    SciTech Connect (OSTI)

    Koenig, S.R.

    1999-01-20

    Motor driven processes represent a large portion of the energy consumption in the United States and, as a result, present a large opportunity for energy savings. Energy efficient motors reduce energy use and will see wider implementation as the impact of the Energy Policy Act of 1992 is felt. These motors are made possible by design and material improvements without compromising reliability, quality, or performance. One drawback is their potential for nuisance tripping due to a high inrush current at starting. Solutions do exist to this problem. Economics also play a large role in energy efficient motor application. The cost of repairing a motor or installing a new machine as well as any utility rebates determine if the efficient motor price premium is offset by energy savings. Other issues such as adjustable speed drives, belts and supply voltage affect efficiency as well. Several industry examples demonstrate the potential results. A thorough understanding of these factors show the energy efficient motor can be a good choice for most applications.

  14. Improving Motor and Drive System Performance

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

    SOURCEBOOK FOR INDUSTRY ADVANCED MANUFACTURING OFFICE Improving Motor and Drive System Performance DISCLAIMER This publication was prepared by the Washington State University Energy Program and the National Renewable Energy Laboratory for the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy. Neither the United States, DOE, the Copper Development Association, the Washington State University Energy Program, National Electrical Manufacturers Association, nor any of their

  15. Advanced Ultra-High Speed Motor for Drilling

    SciTech Connect (OSTI)

    Impact Technologies LLC; University of Texas at Arlington

    2007-03-31

    Three (3) designs have been made for two sizes, 6.91 cm (2.72 inch) and 4.29 cm (1.69 inch) outer diameters, of a patented inverted configured Permanent Magnet Synchronous Machines (PMSM) electric motor specifically for drilling at ultra-high rotational speeds (10,000 rpm) and that can utilize advanced drilling methods. Benefits of these motors are stackable power sections, full control (speed and direction) of downhole motors, flow hydraulics independent of motor operation, application of advanced drilling methods (water jetting and abrasive slurry jetting), and the ability of signal/power electric wires through motor(s). Key features of the final designed motors are: fixed non-rotating shaft with stator coils attached; rotating housing with permanent magnet (PM) rotor attached; bit attached to rotating housing; internal channel(s) in a nonrotating shaft; electric components that are hydrostatically isolated from high internal pressure circulating fluids ('muds') by static metal to metal seals; liquid filled motor with smoothed features for minimized turbulence in the motor during operation; and new inverted coated metal-metal hydrodynamic bearings and seals. PMSM, Induction and Switched Reluctance Machines (SRM), all pulse modulated, were considered, but PMSM were determined to provide the highest power density for the shortest motors. Both radial and axial electric PMSM driven motors were designed with axial designs deemed more rugged for ultra-high speed, drilling applications. The 6.91 cm (2.72 inch) OD axial inverted motor can generate 4.18KW (5.61 Hp) power at 10,000 rpm with a 4 Nm (2.95 ft-lbs) of torque for every 30.48 cm (12 inches) of power section. The 6.91 cm (2.72 inch) OD radial inverted motor can generate 5.03 KW (6.74 Hp) with 4.8 Nm (3.54 ft-lb) torque at 10,000 rpm for every 30.48 cm (12 inches) of power section. The 4.29 cm (1.69 inch) OD radial inverted motor can generate 2.56 KW (3.43 Hp) power with 2.44 Nm (1.8 ft-lb) torque at full speed 10

  16. Advanced motor driven clamped borehole seismic receiver

    DOE Patents [OSTI]

    Engler, Bruce P.; Sleefe, Gerard E.; Striker, Richard P.

    1993-01-01

    A borehole seismic tool including a borehole clamp which only moves perpendicular to the borehole. The clamp is driven by an electric motor, via a right angle drive. When used as a seismic receiver, the tool has a three part housing, two of which are hermetically sealed. Accelerometers or geophones are mounted in one hermetically sealed part, the electric meter in the other hermetically sealed part, and the clamp and right angle drive in the third part. Preferably the tool includes cable connectors at both ends. Optionally a shear plate can be added to the clamp to extend the range of the tool.

  17. Electric Vehicle Safety Training for Emergency Responders | Department of

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

    Presentation given at the EV Everywhere Grand Challenge … Electric Drive (Power Electronics and Electric Machines) Workshop on July 24, 2012 held at the Doubletree O'Hare, Chicago, IL. 7b_electric_motors-and_critical_materials_ed.pdf (154.22 KB) More Documents & Publications EV Everywhere Workshop: Power Electronics and Thermal Management Breakout Session Report EV Everywhere Workshop: Electric Motors and Critical Materials Breakout Group Report EV Everywhere - Charge to Breakout Sessions

  18. MotorMaster+ Tool | Department of Energy

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

    MotorMaster+ Tool MotorMaster+ Tool This presentation discusses industrial motor systems and introduces the MotorMaster+ Tool Suite. MotorMaster+ Tool Presentation (March 19, 2009) ...

  19. Propulsion system for a motor vehicle using a bidirectional energy converter

    DOE Patents [OSTI]

    Tamor, Michael Alan; Gale, Allan Roy

    1999-01-01

    A motor vehicle propulsion system includes an electrical energy source and a traction motor coupled to receive electrical energy from the electrical energy source. The system also has a first bus provided electrical energy by the electrical energy source and a second bus of relatively lower voltage than the first bus. In addition, the system includes an electrically-driven source of reaction gas for the electrical energy source, the source of reaction gas coupled to receive electrical energy from the first bus. Also, the system has an electrical storage device coupled to the second bus for storing electrical energy at the lower voltage. The system also includes a bidirectional energy converter coupled to convert electrical energy from the first bus to the second bus and from the second bus to the first bus.

  20. Electric vehicle climate control

    SciTech Connect (OSTI)

    Dauvergne, J.

    1994-04-01

    EVs have insufficient energy sources for a climatic comfort system. The heat rejection of the drivetrain is dispersed in the vehicle (electric motor, batteries, electronic unit for power control). Its level is generally low (no more than 2-kW peaks) and variable according to the trip profile, with no heat rejection at rest and a maximum during regenerative braking. Nevertheless, it must be used for heating. It is not realistic to have the A/C compressor driven by the electric traction motor: the motor does not operate when the vehicle is at rest, precisely when maximum cooling power is required. The same is true for hybrid vehicles during electric operation. It is necessary to develop solutions that use stored onboard energy either from the traction batteries or specific storage source. In either case, it is necessary to design the climate control system to use the energy efficiently to maximize range and save weight. Heat loss through passenger compartment seals and the walls of the passenger compartment must be limited. Plastic body panes help to reduce heat transfer, and heat gain is minimized with insulating glazing. This article describes technical solutions to solve the problem of passenger thermal comfort. However, the heating and A/C systems of electrically operated vehicles may have marginal performance at extreme outside temperatures.

  1. MotorWeek

    ScienceCinema (OSTI)

    None

    2013-04-19

    In 2008, PBS's MotorWeek, television's original automotive magazine, visited Argonne's Transportation Technology R&D Center "to learn what it really takes to make clean power sources a viable reality."

  2. MotorWeek

    SciTech Connect (OSTI)

    2009-01-01

    In 2008, PBS's MotorWeek, television's original automotive magazine, visited Argonne's Transportation Technology R&D Center "to learn what it really takes to make clean power sources a viable reality."

  3. Vehicle Technologies Office: Electric Drive Systems Research and

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

    Development | Department of Energy Plug-in Electric Vehicles & Batteries » Vehicle Technologies Office: Electric Drive Systems Research and Development Vehicle Technologies Office: Electric Drive Systems Research and Development Vehicle Technologies Office: Electric Drive Systems Research and Development Electric drive technologies, including the electric motor, inverter, boost converter, and on-board charger, are essential components of hybrid and plug-in electric vehicles (PEV)

  4. Motor Energy Conservation Measures

    Energy Science and Technology Software Center (OSTI)

    2010-12-31

    This software requires inputs of simple motor inventory information and calculates the energy and cost benefits of various retrofit opportunities. This tool includes energy conservation measures for: High Efficiency Motor retrofit and Cogged V-belts retrofit. This tool calculates energy savings, demand reduction, cost savings, and building life cycle costs including: simple payback, discounted payback, net-present value, and savings to investment ratio. In addition this tool also displays the environmental benefits of a project.

  5. Single phase two pole/six pole motor

    DOE Patents [OSTI]

    Kirschbaum, H.S.

    1984-09-25

    A single phase alternating current two pole/six pole motor is provided with a main stator winding having six coils disposed unequally around the periphery of the machine. These coils are divided into two groups. When these groups are connected such that their magnetomotive forces are additive, two pole motor operation results. When the polarity of one of the groups is then reversed, six pole motor operation results. An auxiliary stator winding which is similar to the main stator winding is displaced from the main stator winding by 90 electrical degrees on a two pole basis. 12 figs.

  6. Single phase two pole/six pole motor

    DOE Patents [OSTI]

    Kirschbaum, Herbert S.

    1984-01-01

    A single phase alternating current two pole/six pole motor is provided with a main stator winding having six coils disposed unequally around the periphery of the machine. These coils are divided into two groups. When these groups are connected such that their magnetomotive forces are additive, two pole motor operation results. When the polarity of one of the groups is then reversed, six pole motor operation results. An auxiliary stator winding which is similar to the main stator winding is displaced from the main stator winding by 90 electrical degrees on a two pole basis.

  7. Hermatically sealed motor blower unit with stator inside hollow armature

    DOE Patents [OSTI]

    Donelian, Khatchik O.

    1976-01-20

    13. A hermetically sealed motor blower unit comprising, in combination, a sealed housing having a thrust plate mounted therein and having a re-entrant wall forming a central cavity in said housing, a rotor within said housing, said rotor comprising an impeller, a hollow shaft embracing said cavity and a thrust collar adapted to cooperate with said thrust plate to support the axial thrust of said shaft, one or more journal bearings within said housing for supporting the radial load of said shaft and electric motor means for rotating said rotor, said motor means comprising a motor-stator located within said cavity and adapted to cooperate through a portion of said re-entrant wall with a motor-rotor mounted within said hollow shaft, the portion of said re-entrant wall located between said motor-stator and said motor-rotor being made relatively thin to reduce electrical losses, the bearing surfaces of said thrust plate, thrust collar and journal bearings being in communication with the discharge of said impeller, whereby fluid pumped by said impeller can flow directly to said bearing surfaces to lubricate them.

  8. Method and apparatus for monitoring the rotating frequency of de-energized induction motors

    DOE Patents [OSTI]

    Mikesell, Harvey E.; Lucy, Eric

    1998-01-01

    The rotational speed of a coasting induction motor is measured by sensing e residual electrical voltages at the power terminals of the motor, thus eliminating the need for conventional tachometer equipment, additional mechanical components or modifications to the induction motor itself. The power terminal voltage signal is detected and transformed into a DC voltage proportional to the frequency of the signal. This DC voltage can be input to the control system of a variable frequency motor controller to regulate the output characteristics thereof relative to the speed of the coasting motor.

  9. Method and apparatus for monitoring the rotating frequency of de-energized induction motors

    DOE Patents [OSTI]

    Mikesell, H.E.; Lucy, E.

    1998-02-03

    The rotational speed of a coasting induction motor is measured by sensing e residual electrical voltages at the power terminals of the motor, thus eliminating the need for conventional tachometer equipment, additional mechanical components or modifications to the induction motor itself. The power terminal voltage signal is detected and transformed into a DC voltage proportional to the frequency of the signal. This DC voltage can be input to the control system of a variable frequency motor controller to regulate the output characteristics thereof relative to the speed of the coasting motor. 6 figs.

  10. Simple cost model for EV traction motors

    SciTech Connect (OSTI)

    Cuenca, R.M.

    1995-02-01

    A simple cost model has been developed that allows the calculation of the OEM cost of electric traction motors of three different types, normalized as a function of power in order to accommodate different power and size. The model includes enough information on the various elements integrated in the motors to allow analysis of individual components and to factor-in the effects of changes in commodities prices. A scalable cost model for each of the main components of an electric vehicle (EV) is a useful tool that can have direct application in computer simulation or in parametric studies. For the cost model to have wide usefulness, it needs to be valid for a range of values of some parameter that determines the magnitude or size of the component. For instance, in the case of batteries, size may be determined by energy capacity, usually expressed in kilowatt-hours (kWh), while in the case of traction motors, size is better determined by rated power, usually expressed in kilowatts (kW). The simplest case is when the cost of the component in question is a direct function of its size; then cost is simply the product of its specific cost ($/unit size) and the number of units (size) in the vehicle in question. Batteries usually fall in this category (cost = energy capacity x $/kWh). But cost is not always linear with size or magnitude; motors (and controllers), for instance, become relatively less expensive as power rating increases. Traction motors, one of the main components for EV powertrains are examined in this paper, and a simplified cost model is developed for the three most popular design variations.

  11. Bent shaft motor

    DOE Patents [OSTI]

    Benavides, Gilbert L.

    1998-01-01

    A nonelectromagnetic motor comprising a base, a bent shaft which is rotable relative to the base wherein the bent shaft comprises a straight portion aligned with a main axis and an offset portion that is offset with respect to the main axis; and a drive means for driving the offset portion of the bent shaft along a generally circular path in a plane perpendicular to the main axis to rotate the bent shaft. The bent shaft and drive means for driving the bent shaft can be selected from piezoelectric, magnetostrictive, rheological and shape memory alloys. The drive means of the nonelectromagnetic motor can additionally comprise a shell which shell surrounds and houses the bent shaft and precesses or gyrates which in turn causes the bent drive shaft to rotate. The nonelectromagnetic motor does not rely on friction for the application of torque upon a rotor.

  12. Bent shaft motor

    DOE Patents [OSTI]

    Benavides, G.L.

    1998-05-05

    A nonelectromagnetic motor comprising a base, a bent shaft which is rotatable relative to the base wherein the bent shaft comprises a straight portion aligned with a main axis and an offset portion that is offset with respect to the main axis; and a drive means for driving the offset portion of the bent shaft along a generally circular path in a plane perpendicular to the main axis to rotate the bent shaft. The bent shaft and drive means for driving the bent shaft can be selected from piezoelectric, magnetostrictive, rheological and shape memory alloys. The drive means of the nonelectromagnetic motor can additionally comprise a shell which shell surrounds and houses the bent shaft and precesses or gyrates which in turn causes the bent drive shaft to rotate. The nonelectromagnetic motor does not rely on friction for the application of torque upon a rotor. 11 figs.

  13. MotorMaster+ International Fact Sheet

    Broader source: Energy.gov [DOE]

    This fact sheet describes how industrial plants can improve their motor system performance for a broader range of motors with AMO's MotorMaster+ International software tool.

  14. Magnet Motor Corp | Open Energy Information

    Open Energy Info (EERE)

    Magnet Motor Corp Jump to: navigation, search Name: Magnet Motor Corp. Place: Starnberg, Germany Zip: 82319 Sector: Vehicles Product: Magnet motor Corp has been developing and...

  15. Higher Efficiency HVAC Motors

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

    Higher Efficiency HVAC Motors 2016 Building Technologies Office Peer Review PJ Piper, pjpiper@qmpower.com CEO, QM Power, Inc. 2 Project Summary Timeline: Start date: 10/1/14 Planned end date: 9/30/16 Key Milestones 1. Target Application and Machine Specs; 2/13/15 2. Motor Design; 9/30/15 3. Build prototype; 3/31/16 4. Performance validation; 8/1/16 Budget: Total Project $ to Date: * DOE: $239,947 * Cost Share: $189,801 Total Project $: * DOE: $750,000 * Cost Share: $635,756 Key Partners: Project

  16. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

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

    Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Print Movement is fundamental to life. It takes place even at the cellular level where cargo is continually being transported...

  17. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

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

    Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Print Movement is fundamental to life. It takes place even at the cellular level where cargo is continually being transported by motor proteins. These tiny machines convert the energy gained from hydrolysing ATP into a series of small conformational changes that allow them to literally "walk" along microscopic tracks. Motor proteins (in the kinesin and myosin families) have been extensively studied by x-ray crystallography, but

  18. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

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

    Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Print Movement is fundamental to life. It takes place even at the cellular level where cargo is continually being transported by motor proteins. These tiny machines convert the energy gained from hydrolysing ATP into a series of small conformational changes that allow them to literally "walk" along microscopic tracks. Motor proteins (in the kinesin and myosin families) have been extensively studied by x-ray crystallography, but

  19. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

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

    Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Print Movement is fundamental to life. It takes place even at the cellular level where cargo is continually being transported by motor proteins. These tiny machines convert the energy gained from hydrolysing ATP into a series of small conformational changes that allow them to literally "walk" along microscopic tracks. Motor proteins (in the kinesin and myosin families) have been extensively studied by x-ray crystallography, but

  20. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

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

    Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Print Movement is fundamental to life. It takes place even at the cellular level where cargo is continually being transported by motor proteins. These tiny machines convert the energy gained from hydrolysing ATP into a series of small conformational changes that allow them to literally "walk" along microscopic tracks. Motor proteins (in the kinesin and myosin families) have been extensively studied by x-ray crystallography, but

  1. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

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

    Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Print Movement is fundamental to life. It takes place even at the cellular level where cargo is continually being transported by motor proteins. These tiny machines convert the energy gained from hydrolysing ATP into a series of small conformational changes that allow them to literally "walk" along microscopic tracks. Motor proteins (in the kinesin and myosin families) have been extensively studied by x-ray crystallography, but

  2. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

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

    Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Print Movement is fundamental to life. It takes place even at the cellular level where cargo is continually being transported by motor proteins. These tiny machines convert the energy gained from hydrolysing ATP into a series of small conformational changes that allow them to literally "walk" along microscopic tracks. Motor proteins (in the kinesin and myosin families) have been extensively studied by x-ray crystallography, but

  3. Electric vehicle drive train with direct coupling transmission

    DOE Patents [OSTI]

    Tankersley, Jerome B.; Boothe, Richard W.; Konrad, Charles E.

    1995-01-01

    An electric vehicle drive train includes an electric motor and an associated speed sensor, a transmission operable in a speed reduction mode or a direct coupled mode, and a controller responsive to the speed sensor for operating the transmission in the speed reduction mode when the motor is below a predetermined value, and for operating the motor in the direct coupled mode when the motor speed is above a predetermined value. The controller reduces the speed of the motor, such as by regeneratively braking the motor, when changing from the speed reduction mode to the direct coupled mode. The motor speed may be increased when changing from the direct coupled mode to the speed reduction mode. The transmission is preferably a single stage planetary gearbox.

  4. Electric vehicle drive train with direct coupling transmission

    DOE Patents [OSTI]

    Tankersley, J.B.; Boothe, R.W.; Konrad, C.E.

    1995-04-04

    An electric vehicle drive train includes an electric motor and an associated speed sensor, a transmission operable in a speed reduction mode or a direct coupled mode, and a controller responsive to the speed sensor for operating the transmission in the speed reduction mode when the motor is below a predetermined value, and for operating the motor in the direct coupled mode when the motor speed is above a predetermined value. The controller reduces the speed of the motor, such as by regeneratively braking the motor, when changing from the speed reduction mode to the direct coupled mode. The motor speed may be increased when changing from the direct coupled mode to the speed reduction mode. The transmission is preferably a single stage planetary gearbox. 6 figures.

  5. EV Everywhere: Electric Vehicle Benefits | Department of Energy

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

    Benefits EV Everywhere: Electric Vehicle Benefits EV Everywhere: Electric Vehicle Benefits Plug-in electric vehicles (also known as electric cars or EVs) are connected, fun, and practical. They can reduce emissions and even save you money. Fueling with electricity offers some advantages not available in conventional internal combustion engine vehicles. Because electric motors react quickly, EVs are very responsive and have very good torque. EVs are often more digitally connected than

  6. General Motors sidestream separator

    SciTech Connect (OSTI)

    Tessier, R.J.

    1981-01-01

    On February 15, 1980, the United States Environmental Protection Agency, acting pursuant to Paragraph 113(D) (4) of the Clean Air Act, issued to General Motors an innovative technology order covering fifteen coal-fired spreader-stoker boilers located at six General Motors plants in Ohio. The purpose and effect of this order was to permit General Motors time to develop a new, innovative technique for controlling particulate emissions from the specified boilers before compliance with the federally approved Ohio particulate control regulation was required. This new technology was christened, The Sidestream Separator, by General Motors. It provides a highly cost effective means of reducing particulate emissions below levels currently obtainable with conventionally used high efficiency mechanical collectors. These improvements could prove to be of substantial benefit to many industrial facilities with spreader-stoker coal-fired boilers that cannot be brought into compliance with applicble air pollution regulations except by application of far more expensive and unwieldly electrostatic precipitators (ESP's) or fabric filters (baghouses).

  7. UQM Patents Non-Rare Earth Magnet Motor under DOE-Supported Project...

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

    While most plug-in electric vehicles (PEVs) use motors with rare earth metals, these materials are expensive, their prices have been highly volatile (from 80kg to 750kg), and ...

  8. Integrated Inverter Control for Multiple Electric Machines - Energy

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

    Innovation Portal Industrial Technologies Industrial Technologies Find More Like This Return to Search Integrated Inverter Control for Multiple Electric Machines Oak Ridge National Laboratory Contact ORNL About This Technology Technology Marketing SummaryConventional electric or hybrid electric vehicles have a main motor and one or more accessory motors or generators, plus an inverter for each. A consequence of this design is that each vehicle requires a number of inverters and inverter

  9. Motor gasolines, summer 1985

    SciTech Connect (OSTI)

    Dickson, C.L.; Woodward, P.W.

    1986-06-01

    Samples for this report were collected from service stations throughout the country and were analyzed in laboratories of various refiners, motor manufacturers, chemical companies, and research institutes. Analytical data for the 1571 motor gasoline and 206 motor gasoline/alcohol blend samples were submitted to the National Institute for Petroleum and Energy Research (NIPER), Bartlesville, Oklahoma, for reporting. This work is jointly funded by the American Petroleum Institute (API) and the United States Department of Energy (DOE), Bartlesville Project Office (DOE cooperative agreement No. FC22-83FE60149). The data are representative of the products of 62 marketers, large and small, which manufacture and supply gasoline. They are tabulated by groups according to brands (unlabeled) and grades for 17 marketing districts into which the country is divided. A map shows the marketing areas, districts, and sampling locations. The report includes trend charts of selected properties of motor fuels over the last twenty-five years. Twelve octane distribution graphs for leaded and unleaded grades of gasoline are presented for areas 1, 2, 3, and 4. The average antiknock (octane) index (R + M)/2 of gasoline sold in the United States during June, July, and August 1985 was 87.4 for unleaded below 90.0, 91.7 for unleaded 90.0 and above, and 88.8 for leaded below 93.0 grades of gasoline. Analyses of motor gasoline containing various alcohols are reported in separate tables beginning with this report. The average antiknock (octane) index (R + M)/2 of gasoline containing alcohols was 88.6 for unleaded below 90.0, 91.4 for unleaded 90.0 and above, and 90.2 for leaded below 93.0 grades of gasoline. 16 figs., 8 tabs.

  10. Piezoelectric motor development at AlliedSignal Inc., Kansas City Division

    SciTech Connect (OSTI)

    Pressly, R.B.; Mentesana, C.P.

    1994-11-01

    The Kansas City Division of AlliedSignal Inc. has been investigating the fabrication and use of piezoelectric motors in mechanisms for United States Department of Energy (DOE) weapons applications for about four years. These motors exhibit advantages over solenoids and other electromagnetic actuators. Prototype processes have been developed for complete fabrication of motors from stock materials, including abrasive machining of piezoelectric ceramics and more traditional machining of other motor components, electrode plating and sputtering, electric poling, cleaning, bonding and assembly. Drive circuits have been fabricated and motor controls are being developed. Laboratory facilities have been established for electrical/mechanical testing and evaluation of piezo materials and completed motors. Recent project efforts have focused on the potential of piezoelectric devices for commercial and industrial use. A broad range of various motor types and application areas has been identified, primarily in Japan. The Japanese have been developing piezo motors for many years and have more recently begun commercialization. Piezoelectric motor and actuator technology is emerging in the United States and quickly gaining in commercial interest. The Kansas City Division is continuing development of piezoelectric motors and actuators for defense applications while supporting and participating in the commercialization of piezoelectric devices with private industry through various technology transfer and cooperative development initiatives.

  11. Multiple stage miniature stepping motor

    DOE Patents [OSTI]

    Niven, William A.; Shikany, S. David; Shira, Michael L.

    1981-01-01

    A stepping motor comprising a plurality of stages which may be selectively activated to effect stepping movement of the motor, and which are mounted along a common rotor shaft to achieve considerable reduction in motor size and minimum diameter, whereby sequential activation of the stages results in successive rotor steps with direction being determined by the particular activating sequence followed.

  12. Position sensor for linear synchronous motors employing halbach arrays

    SciTech Connect (OSTI)

    Post, Richard Freeman

    2014-12-23

    A position sensor suitable for use in linear synchronous motor (LSM) drive systems employing Halbach arrays to create their magnetic fields is described. The system has several advantages over previously employed ones, especially in its simplicity and its freedom from being affected by weather conditions, accumulated dirt, or electrical interference from the LSM system itself.

  13. Electric vehicle system for charging and supplying electrical power

    DOE Patents [OSTI]

    Su, Gui Jia

    2010-06-08

    A power system that provides power between an energy storage device, an external charging-source/load, an onboard electrical power generator, and a vehicle drive shaft. The power system has at least one energy storage device electrically connected across a dc bus, at least one filter capacitor leg having at least one filter capacitor electrically connected across the dc bus, at least one power inverter/converter electrically connected across the dc bus, and at least one multiphase motor/generator having stator windings electrically connected at one end to form a neutral point and electrically connected on the other end to one of the power inverter/converters. A charging-sourcing selection socket is electrically connected to the neutral points and the external charging-source/load. At least one electronics controller is electrically connected to the charging-sourcing selection socket and at least one power inverter/converter. The switch legs in each of the inverter/converters selected by the charging-source/load socket collectively function as a single switch leg. The motor/generators function as an inductor.

  14. Secretary Chu Highlights More Than 1,800 Electric Vehicle Chargers...

    Office of Environmental Management (EM)

    Coulomb Technologies, ECOtality, General Motors and others have been moving forward to install the charging stations as part of the Administration's investments in U.S. electric ...

  15. Electric Vehicles

    Broader source: Energy.gov [DOE]

    This album contains a variety of all-electric, plug-in hybrid electric and fuel cell electric vehicles. For a full list of all electric vehicles visit the EV Everywhere website.

  16. Motor technology for mining applications advances

    SciTech Connect (OSTI)

    Fiscor, S.

    2009-08-15

    AC motors are steadily replacing DC motors in mining and mineral processing equipment, requiring less maintenance. The permanent magnet rotor, or the synchronous motor, has enabled Blador to introduce a line of cooling tower motors. Synchronous motors are soon likely to take over from the induction motor. 1 photo.

  17. Motor gasolines, summer 1979

    SciTech Connect (OSTI)

    Shelton, E.M.

    1980-02-01

    Analytical data for 2401 samples of motor gasoline, from service stations throughout the country, were collected and analyzed under agreement between the Bartlesville Energy Technology Center and the American Petroleum Institute. The samples represent the products of 48 companies, large and small, which manufacture and supply gasoline. These data are tabulated by groups according to brands (unlabeled) and grades for 17 marketing areas and districts into which the country is divided. A map included in this report, shows marketing areas, districts and sampling locations. The report also includes charts indicating the trends of selected properties of motor fuels since 1949. Twelve octane distribution percent charts for areas 1, 2, 3, and 4 for unleaded, regular, and premium grades of gasoline are presented in this report. The antiknock (octane) index ((R + M)/2) averages of gasoline sold in this country were 88.6, 89.3, and 93.7 unleaded, regular, and premium grades of gasolines, respectively.

  18. Primer on Motor Fuel Excise Taxes and the Role of Alternative Fuels and Energy Efficient Vehicles

    SciTech Connect (OSTI)

    Schroeder, Alex

    2015-08-26

    Motor fuel taxes were established to finance our nation’s transportation infrastructure, yet evolving economic, political, and technological influences are constraining this ability. At the federal level, the Highway Trust Fund (HTF), which is primarily funded by motor fuel taxes, has become increasingly dependent on general fund contributions and short-term reauthorizations to prevent insolvency. As a result, there are discussions at both the federal and state levels in which stakeholders are examining the future of motor fuel excise taxes as well as the role of electric and alternative fuel vehicles in that future. On July 1, 2015, six states increased their motor fuel tax rates.

  19. Motor Fuel Excise Taxes

    SciTech Connect (OSTI)

    2015-09-01

    A new report from the National Renewable Energy Laboratory (NREL) explores the role of alternative fuels and energy efficient vehicles in motor fuel taxes. Throughout the United States, it is common practice for federal, state, and local governments to tax motor fuels on a per gallon basis to fund construction and maintenance of our transportation infrastructure. In recent years, however, expenses have outpaced revenues creating substantial funding shortfalls that have required supplemental funding sources. While rising infrastructure costs and the decreasing purchasing power of the gas tax are significant factors contributing to the shortfall, the increased use of alternative fuels and more stringent fuel economy standards are also exacerbating revenue shortfalls. The current dynamic places vehicle efficiency and petroleum use reduction polices at direct odds with policies promoting robust transportation infrastructure. Understanding the energy, transportation, and environmental tradeoffs of motor fuel tax policies can be complicated, but recent experiences at the state level are helping policymakers align their energy and environmental priorities with highway funding requirements.

  20. Motor gasolines, summer 1983

    SciTech Connect (OSTI)

    Shelton, E.M.

    1984-02-01

    The samples were collected from service stations throughout the country and were analyzed in the laboratories of various refiners, motor manufacturers, chemical companies, and research institutes. The analytical data for 1583 samples of motor gasoline, were submitted to the National Institute for Petroleum and Energy Research, Bartlesville, Oklahoma for study, necessary calculations, and compilation under a cooperative agreement between the National Institute for Petroleum and Energy Research (NIPER) and the American Petroleum Institute (API). They represent the products of 48 companies, large and small, which manufacture and supply gasoline. These data are tabulated by groups according to brands (unlabeled) and grades for 17 marketing districts into which the country is divided. A map included in this report, shows marketing areas, districts and sampling locations. The report also includes charts indicating the trends of selected properties of motor fuels since 1959. Sixteen octane distribution percent charts for areas 1, 2, 3, and 4 for unleaded antiknock index (R+M)/2 below 90.0, unleaded antiknock index (R+M)/2 90.0 and above, and leaded antiknock index (R+M)/2 below 93.0 grades of gasoline are presented in this report. The antiknock (octane) index (R+M)/2 averages of gasoline sold in this country were 87.5 for unleaded below 90.0, 91.4 for unleaded 90.0 and above, and 89.0 for leaded below 93.0 grades of gasoline. 16 figures, 5 tables.

  1. Motor gasolines, summer 1980

    SciTech Connect (OSTI)

    Shelton, E.M.

    1981-02-01

    Analytical data for 2062 samples of motor gasoline were collected from service stations throughout the country and were analyzed in the laboratories of various refiners, motor manufacturers, and chemical companies. The data were submitted to the Bartlesville Energy Technology Center for study, necessary calculations, and compilation under a cooperative agreement between the Bartlesville Energy Technology Center (BETC) and the American Petroleum Institute (API). The samples represent the products of 48 companies, large and small, which manufacture and supply gasoline. These data are tabulated by groups according to brands (unlabeled) and grades for 17 marketing districts into which the country is divided. A map included in this report, shows marketing areas, districts and sampling locations. The report also includes charts indicating the trends of selected properties of motor fuels since 1949. Twelve octane distribution percent charts for areas 1, 2, 3, and 4 for unleaded, regular, and premium grades of gasoline are presented in this report. The anitknock (octane) index ((R + M)/2) averages of gasolines sold in this country were 87.8 for the unleaded below 90.0, 91.6 for the unleaded 90.0 and above, 88.9 for the regular, and 92.8 for the premium grades of gasoline.

  2. Motor gasolines, Summer 1982

    SciTech Connect (OSTI)

    Shelton, E.M.

    1983-03-01

    The samples were collected from service stations throughout the country and were analyzed in the laboratories of various refiners, motor manufacturers, and chemical companies. The analytical data for 796 samples of motor gasoline, were submitted to the Bartlesville Energy Technology Center for study, necessary calculations, and compilation under a cooperative agreement between the Bartlesville Energy Technology Center (BETC) and the American Petroleum Institute (API). They represent the products of 22 companies, large and small, which manufacture and supply gasoline. These data are tabulated by groups according to brands (unlabeled) and grades for 17 marketing districts into which the country is divided. A map included in this report, shows marketing areas, districts and sampling locations. The report also includes charts indicating the trends of selected properties of motor fuels since 1959. Sixteen octane distribution percent charts for areas 1, 2, 3, and 4 for unleaded antiknock index (R + M)/2 below 90.0, unleaded antiknock index (R + M)/2 90.0 and above, leaded antiknock index (R + M)/2 below 93.0, and leaded antiknock index (R + M)/2 93.0 and above grades of gasoline are presented in this report. The antiknock (octane) index (R + M)/2 averages of gasoline sold in this country were 87.3 for unleaded below 90.0, 91.7 for unleaded 90.0 and above, 89.0 for leaded below 93.0, and no data in this report for 93.0 and above grades of leaded gasoline.

  3. Electrical and Electronics Technical Team Roadmap

    SciTech Connect (OSTI)

    2013-06-01

    The Electrical and Electronics Technical Team’s (EETT's) mission is to enable cost-effective, smaller, lighter, and efficient power electronics and electric motors for electric traction drive systems (ETDSs) while maintaining performance of internal combustion engine (ICE)-based vehicles. The EETT also identifies technology gaps, establishes R&D targets, develops a roadmap to achieve technical targets and goals, and evaluates the R&D progress toward meeting the established R&D targets and goals.

  4. Vehicle Technologies Office: Materials for Hybrid and Electric Drive

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

    Systems | Department of Energy Hybrid and Electric Drive Systems Vehicle Technologies Office: Materials for Hybrid and Electric Drive Systems The Vehicle Technologies Office (VTO) is working to lower the cost and increase the convenience of electric drive vehicles, which include hybrid and plug-in electric vehicles. These vehicles use advanced power electronics and electric motors that face barriers because their subcomponents have specific material limitations. Novel propulsion materials

  5. Application of diagnostics to determine motor-operated valve operational readiness

    SciTech Connect (OSTI)

    Eissenberg, D.M.

    1986-01-01

    ORNL has been carrying out an aging assessment of motor-operated valves (MOVs) with the primary objective of recommending diagnostic methods for detecting and trending aging. As a result of experimental investigations at ORNL, it was discovered that the motor current during a valve stroke was a very useful diagnostic parameter for detecting and trending many MOV drive train load variations. The motor curent signatures were analyzed at four levels: mean value for a stroke, gross trends during a stroke, transients, and noise frequency spectra. Examples illustrating the use of this technique are presented. The use of motor current signature analysis was also shown to apply to other electric motor driven equipment. Future work includes developing a data base of MOV diagnostics, including criteria for determining the extent of degradation and application of the technique to other LWR motor driven safety equipment.

  6. Assessing Energy Efficiency Opportunities in US Industrial and Commercial Building Motor Systems

    SciTech Connect (OSTI)

    Rao, Prakash; Sheaffer, Paul; McKane, Aimee; Scheihing, Paul

    2015-09-01

    In 2002, the United States Department of Energy (USDOE) published an energy efficiency assessment of U.S. industrial sector motor systems titled United States Industrial Electric Motor Systems Market Opportunities Assessment. The assessment advanced motor system efficiency by providing a greater understanding of the energy consumption, use characteristics, and energy efficiency improvement potential of industrial sector motor systems in the U.S. Since 2002, regulations such as Minimum Energy Performance Standards, cost reductions for motor system components such as variable frequency drives, system-integrated motor-driven equipment, and awareness programs for motor system energy efficiency have changed the landscape of U.S. motor system energy consumption. To capture the new landscape, the USDOE has initiated a three-year Motor System Market Assessment (MSMA), led by Lawrence Berkeley National Laboratory (LBNL). The MSMA will assess the energy consumption, operational and maintenance characteristics, and efficiency improvement opportunity of U.S. industrial sector and commercial building motor systems. As part of the MSMA, a significant effort is currently underway to conduct field assessments of motor systems from a sample of facilities representative of U.S. commercial and industrial motor system energy consumption. The Field Assessment Plan used for these assessments builds on recent LBNL research presented at EEMODS 2011 and EEMODS 2013 using methods for characterizing and determining regional motor system energy efficiency opportunities. This paper provides an update on the development and progress of the MSMA, focusing on the Field Assessment Plan and the framework for assessing the global supply chain for emerging motors and drive technologies.

  7. Finished Motor Gasoline Net Production

    Gasoline and Diesel Fuel Update (EIA)

    Data Series: Finished Motor Gasoline Finished Motor Gasoline (Excl. Adj.) Reformulated Gasoline Reformulated Gasoline Blenede w/ Fuel Ethanol Reformulated Other Gasoline Conventional Gasoline Conventional Gasoline Blended w/ Fuel Ethanol Conventional Gasoline Blended w/ Fuel Ethanol, Ed55 & < Conventional Gasoline Blended w/ Fuel Ethanol, > Ed55 Other Conventional Gasoline Finished Motor Gasoline Adjustment Kerosene-Type Jet Fuel Kerosene-Type Jet, Commercial Kerosene-Type Jet,

  8. MotorWeek Fuel Cell Video | Department of Energy

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

    Fuel Cell Video MotorWeek Fuel Cell Video Learn how fuel cells are being used in specialty vehicles, auxiliary power, standby power generators, and for supplying power and heat to buildings and warehouse operations. Text Version MotorWeek Host: The emergence of cars like the Nissan Leaf and Chevrolet Volt have generated a lot of buzz for electric drive vehicles lately. But hydrogen fuel cells, seen by many as one of the most promising long-term clean driving solutions, are making their way into

  9. Report on Toyota/Prius Motor Design and Manufacturing Assessment

    SciTech Connect (OSTI)

    Hsu, J.S.

    2004-07-28

    In today's hybrid vehicle market the Toyota Prius drive system is currently considered the leader in electrical, mechanical, and manufacturing innovations. It is significant that in today's marketplace Toyota is able to manufacture and sell the vehicle for a profit. This project's objective is to analyze and study the Prius drive system to understand the design and manufacturing mechanisms Toyota utilized to achieved their performance and cost goals. During the course of this research effort ORNL has dissected both the 2003 and 2004 Toyota/Prius drive motors. This study is focused primarily on motor design considerations and an assessment of manufacturing issues.

  10. General Motors Perspective

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

    Motors Perspective Dr.-Ing. Wolfgang Oelerich Adam Opel AG GM Alternative Propulsion Center Europe Compressed & Cryo- Compressed Hydrogen Storage Workshop 14 th / 15 th February 2011 Washington DC Chevrolet Equinox as Part of GM's Global "Project Driveway" Power: 73 kW Acceleration (0-100 km/h): 12 s Top speed: 160 km/h Fuel: 4.2 kg Compressed Hydrogen Gas (70 MPa) in three Type 4 filament wound carbon fiber composite vessels Range: 320 km Over 2.5 million km (1.5 million miles)

  11. Motor Gasoline Assessment, Spring 1997

    Reports and Publications (EIA)

    1997-01-01

    Analyzes the factors causing the run up of motor gasoline prices during spring 1996 and the different market conditions during spring 1997 that caused prices to decline.

  12. Mission Motors | Open Energy Information

    Open Energy Info (EERE)

    External resources Los Angeles Times Auto Blog Autobloggreen Treehugger.com Autopia (Wired) References "Mission Motors: Contact" Retrieved from "http:en.openei.orgw...

  13. How to Build a Motor

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

    Motor Sign In About | Careers | Contact | Investors | bpa.gov Search News & Us Expand News & Us Projects & Initiatives Expand Projects & Initiatives Finance & Rates Expand...

  14. When to Purchase Premium Efficiency Motors | Department of Energy

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

    When to Purchase Premium Efficiency Motors Consider premium efficiency motors for new motor procurements when specifying motor-driven equipment, repairing or rewinding failed ...

  15. Improve Motor Operation at Off-Design Voltages

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

    Improve Motor Operation at Off-Design Voltages Motors are designed to operate within ... When motors operate at conditions of over and undervoltage, motor effciency and other ...

  16. Combined passive bearing element/generator motor

    DOE Patents [OSTI]

    Post, Richard F.

    2000-01-01

    An electric machine includes a cylindrical rotor made up of an array of permanent magnets that provide a N-pole magnetic field of even order (where N=4, 6, 8, etc.). This array of permanent magnets has bars of identical permanent magnets made of dipole elements where the bars are assembled in a circle. A stator inserted down the axis of the dipole field is made of two sets of windings that are electrically orthogonal to each other, where one set of windings provides stabilization of the stator and the other set of windings couples to the array of permanent magnets and acts as the windings of a generator/motor. The rotor and the stator are horizontally disposed, and the rotor is on the outside of said stator. The electric machine may also include two rings of ferromagnetic material. One of these rings would be located at each end of the rotor. Two levitator pole assemblies are attached to a support member that is external to the electric machine. These levitator pole assemblies interact attractively with the rings of ferromagnetic material to produce a levitating force upon the rotor.

  17. As Electric Vehicles Take Charge, Costs Power Down | Department of Energy

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

    As Electric Vehicles Take Charge, Costs Power Down As Electric Vehicles Take Charge, Costs Power Down January 13, 2012 - 1:29pm Addthis Thanks to a cost-sharing project with the Energy Department, General Motors has been able to develop the capacity to build electric and hybrid motors internally. That capacity has made cars like the upcoming Chevy Spark EV (above) possible. | Image courtesy of General Motors. Thanks to a cost-sharing project with the Energy Department, General Motors has been

  18. Hybrid and Plug-In Electric Vehicles (Brochure), Clean Cities, Energy Efficiency & Renewable Energy (EERE)

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Electric-drive vehicles use electricity as their primary fuel or to improve the efficiency of conventional vehicle designs. These vehicles can be divided into three categories: * Hybrid electric vehicles (HEVs) * Plug-in hybrid electric vehicles (PHEVs) * All-electric vehicles (EVs). Together, they have great potential to cut U.S. petroleum use and vehicle emissions. Hybrid Electric Vehicles HEVs are powered by an internal combustion engine (ICE) and by an electric motor that uses energy stored

  19. Study of Advantages of PM Drive Motor with Selectable Windings for HEVs

    SciTech Connect (OSTI)

    Otaduy, Pedro J; Hsu, John S; Adams, Donald J

    2007-11-01

    The gains in efficiency and reduction in battery costs that can be achieved by changing the effective number of stator turns in an electric motor are demonstrated by simulating the performance of an electric vehicle on a set of eight standard driving cycles.

  20. NREL: Learning - Plug-In Hybrid Electric Vehicle Basics

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

    Credit: Keith Wipke Image of the cutaway top view of a passenger vehicle showing the drive train that contains an electric motor and a small internal combustion engine side by side ...

  1. Evaluation of 2004 Toyota Prius Hybrid Electric Drive System...

    Office of Scientific and Technical Information (OSTI)

    The 2004 Toyota Prius is a hybrid automobile equipped with a gasoline engine and a battery- and generator-powered electric motor. Both of these motive-power sources are capable of ...

  2. The History of the Electric Car | Department of Energy

    Office of Environmental Management (EM)

    ... Valley startup, Tesla Motors, would start producing a luxury electric sports car that could go more than 200 miles on a single charge. In 2010, Tesla received at 465 ...

  3. EERE Success Story-UQM Patents Non-Rare Earth Magnet Motor under

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

    DOE-Supported Project | Department of Energy UQM Patents Non-Rare Earth Magnet Motor under DOE-Supported Project EERE Success Story-UQM Patents Non-Rare Earth Magnet Motor under DOE-Supported Project April 16, 2015 - 10:29am Addthis Credit: UQM Technologies Credit: UQM Technologies Through a cooperative R&D project with the Vehicle Technologies Office (VTO), UQM Technologies, a company developing propulsion systems for electric, hybrid electric, plug-in hybrid electric and fuel cell

  4. Alternative Motor Fuel Use Model

    Energy Science and Technology Software Center (OSTI)

    1992-11-16

    AMFU is a tool for the analysis and prediction of motor fuel use by highway vehicles. The model advances the art of vehicle stock modeling by including a representation of the choice of motor fuel for flexible and dual fuel vehicles.

  5. EcoMotors | Open Energy Information

    Open Energy Info (EERE)

    search Name: EcoMotors Place: California Zip: 94952 Product: EcoMotors is a family-controlled developer of green cars, Diesels and Hybrids. References: EcoMotors1 This...

  6. FMC high power density electric drive technology

    SciTech Connect (OSTI)

    Shafer, G.A.

    1994-12-31

    FMC has developed a unique capability in energy-efficient, high-performance AC induction electric drive systems for electric and hybrid vehicles. These drives will not only be important to future military ground combat vehicles, but will also provide significant competitive advantages to industrial and commercial machinery and vehicles. The product line under development includes drive motors and associated power converters directed at three power/vehicle weight classes. These drive systems cover a broad spectrum of potential vehicle applications, ranging from light pickup trucks to full-size transit buses. The drive motors and power converters are described.

  7. Electric Drive Transportation Association Conference | Department of Energy

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

    Presentation given at the EV Everywhere Grand Challenge - Electric Drive (Power Electronics and Electric Machines) Workshop on July 24, 2012 held at the Doubletree O'Hare, Chicago, IL. 4_rogers_ed.pdf (1.3 MB) More Documents & Publications Power Electronics and Thermal Management Breakout Session Advanced Power Electronics and Electric Motors (APEEM) R&D Program Overview Advanced Power Electronics and Electric Motors (APEEM) R&D Program Overview

    Test Drive 1 of 5 Test Drive Deputy

  8. The Importance of Motor Shaft Alignment

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

    The Importance of Motor Shaft Alignment The objective of optimized shaft alignment is to ... While misalignment has no measurable effect on motor effciency, correct shaft alignment ...

  9. Turn Motors Off When Not in Use

    SciTech Connect (OSTI)

    Not Available

    2008-07-01

    This is one in a series of tip sheets to help manufacturers optimize their industrial motor and motor-driven systems.

  10. Magnetically Coupled Adjustable Speed Motor Drives

    SciTech Connect (OSTI)

    Not Available

    2008-07-01

    This is one in a series of tip sheets to help manufacturers optimize their industrial motor and motor-driven systems.

  11. Michigan: General Motors Optimizes Engine Valve Technology |...

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

    Michigan: General Motors Optimizes Engine Valve Technology Michigan: General Motors Optimizes Engine Valve Technology November 8, 2013 - 12:00am Addthis An EERE-supported effort to ...

  12. Trexa Motor Corporation TMC | Open Energy Information

    Open Energy Info (EERE)

    Trexa Motor Corporation TMC Jump to: navigation, search Name: Trexa Motor Corporation (TMC) Place: Los Angeles, California Sector: Vehicles Product: Los Angeles - based subsidiary...

  13. Magnetically Coupled Adjustable Speed Motor Drives

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

    Because of energy effciency and control capabilities, VFD and motor combinations have replaced constant speed motors in virtually every type of industrial plant. Although VFDs have ...

  14. Renault Samsung Motors | Open Energy Information

    Open Energy Info (EERE)

    Renault Samsung Motors Jump to: navigation, search Name: Renault Samsung Motors Place: Korea (Republic) Sector: Solar Product: Korea-based automobile manufacturer. The firm is also...

  15. Solar panel driven air purging apparatus for motor vehicles

    SciTech Connect (OSTI)

    Bobier, J.A.; Brown, G.E.

    1992-02-18

    This patent describes improvement in a motor vehicle having an enclosable cabin an internal combustion engine, a battery, an ignition switch having an on position for enabling the internal combustion engine and an off position, an electric motor coupled in driving relationship with an air circulating fan for circulating air through the cabin. The improvement comprises: a solar panel mounted upon the vehicle having a panel output exhibiting variable voltage levels including a peak voltage level and substantially constant current; a power transfer regulator for transferring power form the panel to the motor when enabled, including: energy storage means connectable across the panel output and chargeable by the current to variable charge levels; solid-state switch means connected in energy transfer relationship with the energy storage means and actuable between conducting and non-conducting states when the power transfer regulator is enabled; inductor means connected with the solid-state switch means and connectable with the electric motor for conveying current thereto from the panel and the energy storage means when the solid-state switch means is in the conducting state.

  16. Precision electronic speed controller for an alternating-current motor

    DOE Patents [OSTI]

    Bolie, V.W.

    A high precision controller for an alternating-current multi-phase electrical motor that is subject to a large inertial load. The controller was developed for controlling, in a neutron chopper system, a heavy spinning rotor that must be rotated in phase-locked synchronism with a reference pulse train that is representative of an ac power supply signal having a meandering line frequency. The controller includes a shaft revolution sensor which provides a feedback pulse train representative of the actual speed of the motor. An internal digital timing signal generator provides a reference signal which is compared with the feedback signal in a computing unit to provide a motor control signal. The motor control signal is a weighted linear sum of a speed error voltage, a phase error voltage, and a drift error voltage, each of which is computed anew with each revolution of the motor shaft. The speed error signal is generated by a novel vernier-logic circuit which is drift-free and highly sensitive to small speed changes. The phase error is also computed by digital logic, with adjustable sensitivity around a 0 mid-scale value. The drift error signal, generated by long-term counting of the phase error, is used to compensate for any slow changes in the average friction drag on the motor. An auxillary drift-byte status sensor prevents any disruptive overflow or underflow of the drift-error counter. An adjustable clocked-delay unit is inserted between the controller and the source of the reference pulse train to permit phase alignment of the rotor to any desired offset angle. The stator windings of the motor are driven by two amplifiers which are provided with input signals having the proper quadrature relationship by an exciter unit consisting of a voltage controlled oscillator, a binary counter, a pair of read-only memories, and a pair of digital-to-analog converters.

  17. A Framework to Survey the Energy Efficiency of Installed Motor Systems

    SciTech Connect (OSTI)

    Rao, Prakash; Hasanbeigi, Ali; McKane, Aimee

    2013-08-01

    While motors are ubiquitous throughout the globe, there is insufficient data to properly assess their level of energy efficiency across regional boundaries. Furthermore, many of the existing data sets focus on motor efficiency and neglect the connected drive and system. Without a comprehensive survey of the installed motor system base, a baseline energy efficiency of a country or region’s motor systems cannot be developed. The lack of data impedes government agencies, utilities, manufacturers, distributers, and energy managers when identifying where to invest resources to capture potential energy savings, creating programs aimed at reducing electrical energy consumption, or quantifying the impacts of such programs. This paper will outline a data collection framework for use when conducting a survey under a variety of execution models to characterize motor system energy efficiency within a country or region. The framework is intended to standardize the data collected ensuring consistency across independently conducted surveys. Consistency allows for the surveys to be leveraged against each other enabling comparisons to motor system energy efficiencies from other regions. In creating the framework, an analysis of various motor driven systems, including compressed air, pumping, and fan systems, was conducted and relevant parameters characterizing the efficiency of these systems were identified. A database using the framework will enable policymakers and industry to better assess the improvement potential of their installed motor system base particularly with respect to other regions, assisting in efforts to promote improvements to the energy efficiency of motor driven systems.

  18. Vehicle Technologies Office: 2014 Electric Drive Technologies Annual

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

    Progress Report | Department of Energy Electric Drive Technologies Annual Progress Report Vehicle Technologies Office: 2014 Electric Drive Technologies Annual Progress Report The Electric Drive Technologies research and development (R&D) subprogram within the DOE Vehicle Technologies Office (VTO) provides support and guidance for many cutting-edge automotive technologies under development. Research is focused on developing power electronics (PE), electric motor, and traction drive system

  19. DOE Fundamentals Handbook: Electrical Science, Volume 4

    SciTech Connect (OSTI)

    Not Available

    1992-06-01

    The Electrical Science Fundamentals Handbook was developed to assist nuclear facility operating contractors provide operators, maintenance personnel, and the technical staff with the necessary fundamentals training to ensure a basic understanding of electrical theory, terminology, and application. The handbook includes information on alternating current (AC) and direct current (DC) theory, circuits, motors, and generators; AC power and reactive transformers; and electrical test components; batteries; AC and DC voltage regulators; instruments and measuring devices. This information will provide personnel with a foundation for understanding the basic operation of various types of DOE nuclear facility electrical equipment.

  20. DOE Fundamentals Handbook: Electrical Science, Volume 3

    SciTech Connect (OSTI)

    Not Available

    1992-06-01

    The Electrical Science Fundamentals Handbook was developed to assist nuclear facility operating contractors provide operators, maintenance personnel, and the technical staff with the necessary fundamentals training to ensure a basic understanding of electrical theory, terminology, and application. The handbook includes information on alternating current (AC) and direct current (DC) theory, circuits, motors and generators; AC power and reactive components; batteries; AC and DC voltage regulators; transformers; and electrical test instruments and measuring devices. This information will provide personnel with a foundation for understanding the basic operation of various types of DOE nuclear facility electrical equipment.

  1. DOE Fundamentals Handbook: Electrical Science, Volume 1

    SciTech Connect (OSTI)

    Not Available

    1992-06-01

    The Electrical Science Fundamentals Handbook was developed to assist nuclear facility operating contractors provide operators, maintenance personnel, and the technical staff with the necessary fundamentals training to ensure a basic understanding of electrical theory, terminology, and application. The handbook includes information on alternating current (AC) and direct current (DC) theory, circuits, motors, and generators; AC power and reactive components; batteries; AC and DC voltage regulators; transformers; and electrical test instruments and measuring devices. This information will provide personnel with a foundation for understanding the basic operation of various types of DOE nuclear facility electrical equipment.

  2. State observer for synchronous motors

    DOE Patents [OSTI]

    Lang, Jeffrey H.

    1994-03-22

    A state observer driven by measurements of phase voltages and currents for estimating the angular orientation of a rotor of a synchronous motor such as a variable reluctance motor (VRM). Phase voltages and currents are detected and serve as inputs to a state observer. The state observer includes a mathematical model of the electromechanical operation of the synchronous motor. The characteristics of the state observer are selected so that the observer estimates converge to the actual rotor angular orientation and velocity, winding phase flux linkages or currents.

  3. Turn Motors Off When Not in Use - Motor Tip Sheet #10

    SciTech Connect (OSTI)

    2008-07-01

    Motors use no energy when turned off. Reducing motor operating time by just 10% usually saves more energy than replacing a standard efficiency motor with a NEMA Premium® efficiency motor. In fact, given that 97% of the life cycle cost of purchasing and operating a motor is energy-related, turning a motor off 10% of the time could reduce energy costs enough to purchase three new motors.

  4. Premium Efficiency Motor Selection And Application Guide: A Guidebook for Industry

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

    PREMIUM EFFICIENCY MOTOR SELECTION AND APPLICATION GUIDE A HANDBOOK FOR INDUSTRY PREMIUM EFFICIENCY MOTOR SELECTION AND APPLICATION GUIDE DISCLAIMER This publication was prepared by the Washington State University Energy Program for the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy. Neither the United States, the U.S. Department of Energy, the Copper Development Association, the Washington State University Energy Program, the National Electrical Manufacturers

  5. Tesla Motors | Open Energy Information

    Open Energy Info (EERE)

    to hold an initial public offering soon.2 References Tesla Motors http:www.reuters.comarticleGCA-GreenBusinessidUSTRE5AJ41M20091120?rpc64&sptrue Retrieved from...

  6. Direct drive field actuator motors

    DOE Patents [OSTI]

    Grahn, Allen R.

    1998-01-01

    A positive-drive field actuator motor including a stator carrying at least one field actuator which changes in dimension responsive to application of an energy field, and at least one drive shoe movable by the dimensional changes of the field actuator to contact and move a rotor element with respect to the stator. Various embodiments of the motor are disclosed, and the rotor element may be moved linearly or arcuately.

  7. Direct drive field actuator motors

    DOE Patents [OSTI]

    Grahn, A.R.

    1998-03-10

    A positive-drive field actuator motor is described which includes a stator carrying at least one field actuator which changes in dimension responsive to application of an energy field, and at least one drive shoe movable by the dimensional changes of the field actuator to contact and move a rotor element with respect to the stator. Various embodiments of the motor are disclosed, and the rotor element may be moved linearly or arcuately. 62 figs.

  8. MTBE, Oxygenates, and Motor Gasoline

    Gasoline and Diesel Fuel Update (EIA)

    MTBE, Oxygenates, and Motor Gasoline Contents * Introduction * Federal gasoline product quality regulations * What are oxygenates? * Who gets gasoline with oxygenates? * Which areas get MTBE? * How much has been invested in MTBE production capacity? * What does new Ethanol capacity cost? * What would an MTBE ban cost? * On-line information resources * Endnotes * Summary of revisions to this analysis Introduction The blending of methyl tertiary butyl ether (MTBE) into motor gasoline has increased

  9. National Electrical Manufacturers Association Comment | Department of

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

    Energy Comment National Electrical Manufacturers Association Comment The National Electrical Manufacturers Association (NEMA) appreciates the opportunity to provide the attached comments on the Request for Information to Reduce Regulatory Burden as announced in the U.S. Federal Register Vol. 80, No. 127, beginning on page 38019. Regulatory Burden RFI NEMA Comments regarding small motor regulations 17July2015 v5_1 (174.95 KB) More Documents & Publications Ex Parte Communications in

  10. Improved Organics for Power Electronics and Electric Motors

    Broader source: Energy.gov [DOE]

    2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

  11. Improved Organics for Power Electronics and Electric Motors

    Broader source: Energy.gov [DOE]

    2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation

  12. New Energy Efficiency Standards for Electric Motors and Walk...

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

    WASHINGTON - As part of President Obama's Climate Action Plan, which called for efficiency standards that cut carbon pollution and save money by saving energy, the Energy ...

  13. Advanced Power Electronics and Electric Motors R&D

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

    ... published March 10, 2011. * ORNLTM-2010253, Evaluation of the 2010 Toyota Prius Hybrid Synergy Drive System, by T. A. Burress, S. L. Campbell, C. L. Coomer, C. W. Ayers, A. a. ...

  14. Vehicle Technologies Office Merit Review 2016: Advanced Electric Motor Research

    Office of Energy Efficiency and Renewable Energy (EERE)

    Presentation given by Oak Ridge National Laboratory (ORNL) at the 2016 DOE Vehicle Technologies Office and Hydrogen and Fuel Cells Program Annual Merit Review and Peer Evaluation Meeting about...

  15. This document, concerning electric motors is a rulemaking action...

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

    document published in the Federal Register, the Federal ... Efficiency and Renewable Energy, Department of Energy. ... the National Environmental Policy Act of 1969 E. Review ...

  16. VP 100: UQM revving up electric motor production | Department...

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

    ... Abound Solar -- who are about to get more than 1,000 new colleagues -- make a thin-film solar panel. | Photo courtesy of Abound Solar Former Chrysler Plant Changes Gears to Solar ...

  17. Thermally Conductive Organic Dielectrics for Power Electronics and Electric Motors

    Broader source: Energy.gov [DOE]

    2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

  18. Electrical Motor Drive Apparatus and Method - Energy Innovation...

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

    Substantially reduces the bus capacitance and thus inverter volume and cost Reduce battery losses and improves battery operating conditions by eliminating battery ripple current ...

  19. Electric vehicle drive train with contactor protection

    DOE Patents [OSTI]

    Konrad, Charles E.; Benson, Ralph A.

    1994-01-01

    A drive train for an electric vehicle includes a traction battery, a power drive circuit, a main contactor for connecting and disconnecting the traction battery and the power drive circuit, a voltage detector across contacts of the main contactor, and a controller for controlling the main contactor to prevent movement of its contacts to the closed position when the voltage across the contacts exceeds a predetermined threshold, to thereby protect the contacts of the contactor. The power drive circuit includes an electric traction motor and a DC-to-AC inverter with a capacitive input filter. The controller also inhibits the power drive circuit from driving the motor and thereby discharging the input capacitor if the contacts are inadvertently opened during motoring. A precharging contactor is controlled to charge the input filter capacitor prior to closing the main contactor to further protect the contacts of the main contactor.

  20. Electric vehicle drive train with contactor protection

    DOE Patents [OSTI]

    Konrad, C.E.; Benson, R.A.

    1994-11-29

    A drive train for an electric vehicle includes a traction battery, a power drive circuit, a main contactor for connecting and disconnecting the traction battery and the power drive circuit, a voltage detector across contacts of the main contactor, and a controller for controlling the main contactor to prevent movement of its contacts to the closed position when the voltage across the contacts exceeds a predetermined threshold, to thereby protect the contacts of the contactor. The power drive circuit includes an electric traction motor and a DC-to-AC inverter with a capacitive input filter. The controller also inhibits the power drive circuit from driving the motor and thereby discharging the input capacitor if the contacts are inadvertently opened during motoring. A precharging contactor is controlled to charge the input filter capacitor prior to closing the main contactor to further protect the contacts of the main contactor. 3 figures.

  1. Motor Repair Tech Brief | Department of Energy

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

    Repair Tech Brief Motor Repair Tech Brief This Tech Brief answers: Why do motors fail? When should you repair instead of replace? And how can reliability and efficiency be assured in a repair? Motor Repair Tech Brief (March 2000) (941.96 KB) More Documents & Publications Extend the Operating Life of Your Motor Service Center Evaluation Guide Premium Efficiency Motor Selection and Application Guide - A Handbook for Industry

  2. Radial-Gap Permanent Magnet Motor and Drive Research FY 2004

    SciTech Connect (OSTI)

    McKeever, J.W.

    2005-02-11

    The objective of this task was to study permanent magnet (PM) radial-gap traction drive systems that could meet the U.S. Department of Energy FreedomCAR Program's 2010 goals to expose weaknesses or identify strengths. Initially, the approach was to compare attributes such as physical deformations during operation, performance (torque, power, efficiency versus speed), material requirements (strength), material costs, manufacturability, weight, power density, specific power, reliability, and drivability for specific motors. Three motors selected were the commercially available 60-kW radial-gap surface-mounted PM motor manufactured by UQM Technologies, Inc.; a hypothetical PM motor with rotor-supported magnets similar to the Honda MCF-21; and Delphi's automotive electric machine drive motor, whose rotor is a ferromagnetic cylinder, held at one end by a shaft that supports the magnets on its inner surface. Potential problems have appeared related to PM motors, such as (1) high no-load spin losses and high operational power losses, probably from eddy current losses in the rotor; (2) the undemonstrated dual mode inverter control (DMIC) for driving a brushless dc motor (BDCM) (UQM and Delphi motors); (3) uncertainty about the potential for reducing current with DMIC; and (4) uncertainty about the relation between material requirements and maximum rotor speed. Therefore, the approach was changed to study in detail three of the comparison attributes: drivability, performance, and material requirements. Drivability and related problems were examined by demonstrating that DMIC may be used to drive an 18-pole 30-kW PM motor to 6000 rpm, where the maximum electrical frequency is 900 Hz. An available axial-gap test motor with 18 poles was used because its control is identical to that of a radial gap PM motor. Performance was analytically examined, which led to a derivation showing that DMIC controls a PM motor so that the motor uses minimum current to produce any power

  3. Improve Motor Operation at Off-Design Voltages - Motor Tip Sheet #9

    SciTech Connect (OSTI)

    2008-07-01

    Motors are designed to operate within +/- 10% of their nameplate rated voltages. When motors operate at conditions of over- or under-voltage, motor efficiency and other performance parameters are degraded.

  4. MotorWeek H2 on the Horizon Video | Department of Energy

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

    H2 on the Horizon Video MotorWeek H2 on the Horizon Video Learn how car makers, energy suppliers, and the government are bringing fuel cell electric vehicles and hydrogen fueling infrastructure to the U.S. market. Text Version MotorWeek Host: Fuel cell electric cars, or FCEVs, provide drivers with the same benefits as current gasoline vehicles with a comparable driving range and refueling in just a few minutes. FCEVs don't use combustion, so they return better fuel economy than today's cars and

  5. Utility rebates for efficient motors -- The outlook for demand-side management

    SciTech Connect (OSTI)

    Nailen, R.L.

    1997-01-01

    Since 1987, many electric utilities throughout North America have been actively promoting demand-side management (DSM), the attempt to conserve fuels and postpone costly generating capacity increases by encouraging customers to use more efficient electrical equipment, including motors. One popular DSM program has been utility payment of cash rebates to purchasers of more efficient motors. Today, such payments face extinction in a rapidly changing utility economic climate based on deregulation. How rebates originated, the basis for such payments, how successful rebate programs have been, and what the future holds for them are the subjects of this paper.

  6. Utility rebates for efficient motors -- The outlook for demand-side management

    SciTech Connect (OSTI)

    Nailen, R.L.

    1995-12-31

    Since 1987, many electric utilities throughout North America have been actively promoting DSM--demand-side management, the attempt to conserve fuels and postpone costly generating capacity increases by encouraging customers to use more efficient electrical equipment, including motors. One popular DSM program has been utility payment of cash rebates to purchasers of more efficient motors. Today, such payments face extinction in a rapidly changing utility economic climate based on deregulation. How rebates originated, the basis for such payments, how successful rebate programs have been, and what the future holds for them--these are the subjects of this paper.

  7. Three phase AC motor controller

    DOE Patents [OSTI]

    Vuckovich, Michael; Wright, Maynard K.; Burkett, John P.

    1984-03-20

    A motor controller for a three phase AC motor (10) which is adapted to operate bidirectionally from signals received either from a computer (30) or a manual control (32). The controller is comprised of digital logic circuit means which implement a forward and reverse command signal channel (27, 29) for the application of power through the forward and reverse power switching relays (16, 18, 20, 22). The digital logic elements are cross coupled to prevent activation of both channels simultaneously and each includes a plugging circuit (65, 67) for stopping the motor upon the removal of control signal applied to one of the two channels (27, 29) for a direction of rotation desired. Each plugging circuit (65, 67) includes a one-shot pulse signal generator (88, 102) which outputs a single pulse signal of predetermined pulsewidth which is adapted to inhibit further operation of the application of power in the channel which is being activated and to apply a reversal command signal to the other channel which provides a reversed phase application of power to the motor for a period defined by the pulse-width output of the one-shot signal generator to plug the motor (10) which will then be inoperative until another rotational command signal is applied to either of the two channels.

  8. DOE Hybrid and Electric Vehicle Test Platform

    SciTech Connect (OSTI)

    Gao, Yimin

    2012-03-31

    Based on the contract NT-42790 to the Department of Energy, “Plug-in Hybrid Ethanol Research Platform”, Advanced Vehicle Research Center (AVRC) Virginia has successfully developed the phase I electric drive train research platform which has been named as Laboratory Rapid Application Testbed (LabRAT). In phase II, LabRAT is to be upgraded into plug-in hybrid research platform, which will be capable of testing power systems for electric vehicles, and plug-in hybrid electric vehicles running on conventional as well as alternative fuels. LabRAT is configured as a rolling testbed with plentiful space for installing various component configurations. Component connections are modularized for flexibility and are easily replaced for testing various mechanisms. LabRAT is designed and built as a full functional vehicle chassis with a steering system, brake system and four wheel suspension. The rear drive axle offers maximum flexibility with a quickly changeable gear ratio final drive to accommodate different motor speed requirements. The electric drive system includes an electric motor which is mechanically connected to the rear axle through an integrated speed/torque sensor. Initially, a 100 kW UQM motor and corresponding UQM motor controller is used which can be easily replaced with another motor/controller combination. A lithium iron phosphate (LiFePO4) battery pack is installed, which consists of 108 cells of 100 AH capacity, giving the total energy capacity of 32.5 kWh. Correspondingly, a fully functional battery management system (BMS) is installed to perform battery cell operation monitoring, cell voltage balancing, and reporting battery real time operating parameters to vehicle controller. An advanced vehicle controller ECU is installed for controlling the drive train. The vehicle controller ECU receives traction or braking torque command from driver through accelerator and brake pedal position sensors and battery operating signals from the BMS through CAN BUS

  9. Energy control strategy for a hybrid electric vehicle

    DOE Patents [OSTI]

    Phillips, Anthony Mark; Blankenship, John Richard; Bailey, Kathleen Ellen; Jankovic, Miroslava

    2002-08-27

    An energy control strategy (10) for a hybrid electric vehicle that controls an electric motor during bleed and charge modes of operation. The control strategy (10) establishes (12) a value of the power level at which the battery is to be charged. The power level is used to calculate (14) the torque to be commanded to the electric motor. The strategy (10) of the present invention identifies a transition region (22) for the electric motor's operation that is bounded by upper and lower speed limits. According to the present invention, the desired torque is calculated by applying equations to the regions before, during and after the transition region (22), the equations being a function of the power level and the predetermined limits and boundaries.

  10. Energy control strategy for a hybrid electric vehicle

    DOE Patents [OSTI]

    Phillips, Anthony Mark; Blankenship, John Richard; Bailey, Kathleen Ellen; Jankovic, Miroslava

    2002-01-01

    An energy control strategy (10) for a hybrid electric vehicle that controls an electric motor during bleed and charge modes of operation. The control strategy (10) establishes (12) a value of the power level at which the battery is to be charged. The power level is used to calculate (14) the torque to be commanded to the electric motor. The strategy (10) of the present invention identifies a transition region (22) for the electric motor's operation that is bounded by upper and lower speed limits. According to the present invention, the desired torque is calculated by applying equations to the regions before, during and after the transition region (22), the equations being a function of the power level and the predetermined limits and boundaries.

  11. BPM Motors in Residential Gas Furnaces: What are theSavings?

    SciTech Connect (OSTI)

    Lutz, James; Franco, Victor; Lekov, Alex; Wong-Parodi, Gabrielle

    2006-05-12

    Residential gas furnaces contain blowers to distribute warm air. Currently, furnace blowers use either a Permanent Split Capacitor (PSC) or a Brushless Permanent Magnet (BPM) motor. Blowers account for the majority of furnace electricity consumption. Therefore, accurate determination of the blower electricity consumption is important for understanding electricity consumption of furnaces. The electricity consumption of blower motors depends on the static pressure across the blower. This paper examines both types of blower motors in non-condensing non-weatherized gas furnaces at a range of static pressures. Fan performance data is based on manufacturer product literature and laboratory tests. We use field-measured static pressure in ducts to get typical system curves to calculate how furnaces would operate in the field. We contrast this with the electricity consumption of a furnace blower operating under the DOE test procedure and manufacturer rated conditions. Furnace electricity use is also affected by operating modes that happen at the beginning and end of each furnace firing cycle. These operating modes are the pre-purge and post-purge by the draft inducer, the on-delay and off-delay of the blower, and the hot surface ignitor operation. To accurately calculate this effect, we use the number of firing cycles in a typical California house in the Central Valley of California. Cooling hours are not considered in the DOE test procedure. We also account for furnace blower use by the air conditioner and stand-by power. Overall BPM motors outperform PSC motors, but the total electricity savings are significantly less than projected using the DOE test procedure conditions. The performance gains depend on the static pressure of the household ducts, which are typically much higher than in the test procedures.

  12. Evaluation of Retrofit Variable-Speed Furnace Fan Motors

    SciTech Connect (OSTI)

    Aldrich, R.; Williamson, J.

    2014-01-01

    In conjunction with the New York State Energy Research and Development Authority (NYSERDA) and Proctor Engineering Group, Ltd. (PEG), the Consortium for Advanced Residential Buildings (CARB) has evaluated the Concept 3™ replacement motors for residential furnaces. These brushless, permanent magnet (BPM) motors can use much less electricity than their PSC (permanent split capacitor) predecessors. This evaluation focuses on existing homes in the heating-dominated climate of upstate New York with the goals of characterizing field performance and cost effectiveness. The project includes eight homes in and near Syracuse, NY. Tests and monitoring was performed both before and after fan motors were replaced. Results indicate that BPM replacement motors will be most cost effective in HVAC systems with longer run times and relatively low duct static pressures. More dramatic savings are possible if occupants use the fan-only setting when there is no thermal load. There are millions of cold-climate, U.S. homes that meet these criteria, but the savings in most homes tested in this study were modest.

  13. Real Time Flux Control in PM Motors

    SciTech Connect (OSTI)

    Otaduy, P.J.

    2005-09-27

    Significant research at the Oak Ridge National Laboratory (ORNL) Power Electronics and Electric Machinery Research Center (PEEMRC) is being conducted to develop ways to increase (1) torque, (2) speed range, and (3) efficiency of traction electric motors for hybrid electric vehicles (HEV) within existing current and voltage bounds. Current is limited by the inverter semiconductor devices' capability and voltage is limited by the stator wire insulation's ability to withstand the maximum back-electromotive force (emf), which occurs at the upper end of the speed range. One research track has been to explore ways to control the path and magnitude of magnetic flux while the motor is operating. The phrase, real time flux control (RTFC), refers to this mode of operation in which system parameters are changed while the motor is operating to improve its performance and speed range. RTFC has potential to meet an increased torque demand by introducing additional flux through the main air gap from an external source. It can augment the speed range by diverting flux away from the main air gap to reduce back-emf at high speeds. Conventional RTFC technology is known as vector control [1]. Vector control decomposes the stator current into two components; one that produces torque and a second that opposes (weakens) the magnetic field generated by the rotor, thereby requiring more overall stator current and reducing the efficiency. Efficiency can be improved by selecting a RTFC method that reduces the back-emf without increasing the average current. This favors methods that use pulse currents or very low currents to achieve field weakening. Foremost in ORNL's effort to develop flux control is the work of J. S. Hsu. Early research [2,3] introduced direct control of air-gap flux in permanent magnet (PM) machines and demonstrated it with a flux-controlled generator. The configuration eliminates the problem of demagnetization because it diverts all the flux from the magnets instead of

  14. Electric Vehicles

    ScienceCinema (OSTI)

    Ozpineci, Burak

    2014-07-23

    Burak Ozpineci sees a future where electric vehicles charge while we drive them down the road, thanks in part to research under way at ORNL.

  15. Electrical Engineer

    Broader source: Energy.gov [DOE]

    Transmission Field Services is responsible for field switching operation and maintenance of Bonneville Power Administration's high-voltage electrical transmission system to provide safe, reliable,...

  16. Electrical Safety

    Office of Environmental Management (EM)

    Handbook that was originally issued in 1998, and revised in 2004. DOE handbooks are ... the National Fire Protection Association (NFPA) 70, the National Electrical Code (NEC), ...

  17. Electric Vehicles

    SciTech Connect (OSTI)

    Ozpineci, Burak

    2014-05-02

    Burak Ozpineci sees a future where electric vehicles charge while we drive them down the road, thanks in part to research under way at ORNL.

  18. Workplace Charging Challenge Partner: Ford Motor Company | Department...

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

    Ford Motor Company Workplace Charging Challenge Partner: Ford Motor Company Workplace Charging Challenge Partner: Ford Motor Company Joined the Challenge: January 2013 ...

  19. Homopolar motor with dual rotors

    DOE Patents [OSTI]

    Hsu, J.S.

    1998-12-01

    A homopolar motor has a field rotor mounted on a frame for rotation in a first rotational direction and for producing an electromagnetic field, and an armature rotor mounted for rotation on said frame within said electromagnetic field and in a second rotational direction counter to said first rotational direction of said field rotor. The two rotors are coupled through a 1:1 gearing mechanism, so as to travel at the same speed but in opposite directions. This doubles the output voltage and output power, as compared to a motor in which only the armature is rotated. Several embodiments are disclosed. 7 figs.

  20. Homopolar motor with dual rotors

    DOE Patents [OSTI]

    Hsu, John S.

    1998-01-01

    A homopolar motor (10) has a field rotor (15) mounted on a frame (11) for rotation in a first rotational direction and for producing an electromagnetic field, and an armature rotor (17) mounted for rotation on said frame (11) within said electromagnetic field and in a second rotational direction counter to said first rotational direction of said field rotor (15). The two rotors (15, 17) are coupled through a 1:1 gearing mechanism (19), so as to travel at the same speed but in opposite directions. This doubles the output voltage and output power, as compared to a motor in which only the armature is rotated. Several embodiments are disclosed.

  1. DOE Fundamentals Handbook: Electrical Science, Volume 2

    SciTech Connect (OSTI)

    Not Available

    1992-06-01

    The Electrical Science Fundamentals Handbook was developed to assist nuclear facility operating contractors provide operators, maintenance personnel, and the technical staff with the necessary fundamentals training to ensure a basic understanding terminology, and application. The handbook includes information on alternating current (AC) and direct current (DC) theory, circuits, motors, and generators; AC power and reactive components; batteries; AC and DC voltage regulators; transformers; and electrical test instruments and measuring devices. This information will provide personnel with a foundation for understanding the basic operation of various types of DOE nuclear facility electrical equipment.

  2. Roles of electricity: Electric steelmaking

    SciTech Connect (OSTI)

    Burwell, C.C.

    1986-07-01

    Electric steel production from scrap metal continues to grow both in total quantity and in market share. The economics of electric-steel production in general, and of electric minimills in particular, seem clearly established. The trend towards electric steelmaking provides significant economic and competitive advantages for producers and important overall economic, environmental, and energy advantages for the United States at large. Conversion to electric steelmaking offers up to a 4-to-1 advantage in terms of the overall energy used to produce a ton of steel, and s similar savings in energy cost for the producer. The amount of old scrap used to produce a ton of steel has doubled since 1967 because of the use of electric furnaces.

  3. Electric machine

    DOE Patents [OSTI]

    El-Refaie, Ayman Mohamed Fawzi; Reddy, Patel Bhageerath

    2012-07-17

    An interior permanent magnet electric machine is disclosed. The interior permanent magnet electric machine comprises a rotor comprising a plurality of radially placed magnets each having a proximal end and a distal end, wherein each magnet comprises a plurality of magnetic segments and at least one magnetic segment towards the distal end comprises a high resistivity magnetic material.

  4. Electric avenues

    SciTech Connect (OSTI)

    Stone, P.; Chang, A.

    1994-12-31

    Highly efficient electric drive technology developed originally for defense applications is being applied to the development of all electric shuttle buses for the San Jose International Airport. An innovative opportunity charging system using induction chargers will be incorporated to extend operation hours. The project, if successful, is expected to reduce pollution at the airport and generate jobs for displaced defense workers.

  5. 2013 Annual Merit Review Results Report - Power Electronics and Electrical

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

    Machines Technologies | Department of Energy Power Electronics and Electrical Machines Technologies 2013 Annual Merit Review Results Report - Power Electronics and Electrical Machines Technologies Merit review of DOE Vehicle Technologies research activities 2013_amr_03.pdf (5.87 MB) More Documents & Publications 2014 Annual Merit Review Results Report - Power Electronics and Electrical Machines Technologies Vehicle Technologies Office Merit Review 2016: Unique Lanthide-Free Motor

  6. EXC-15-0001 - In the Matter of Reuland Electric Co. | Department of Energy

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

    5-0001 - In the Matter of Reuland Electric Co. EXC-15-0001 - In the Matter of Reuland Electric Co. On March 25, 2016, OHA issued a decision denying an Application for Exception filed by Reuland Electric Co. (Reuland). In its Application, Reuland sought exception relief from the provisions of 10 CFR Part 431, Energy Conservation Program: Energy Conservation Standards for Commercial and Industrial Electric Blowers, 79 Fed. Reg. 30934 (2014) (Electric Motor Efficiency Standards), effective July 28,

  7. Avoid Nuisance Tripping with Premium Efficiency Motors

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

    rotor value during acceleration until the motor approaches its operating speed. (Note: The ... LRC for specifc new motor models can be looked up in the U.S. Department of Energy's (DOE) ...

  8. ,"U.S. Motor Gasoline Prices"

    U.S. Energy Information Administration (EIA) Indexed Site

    Data for" ,"Data 1","U.S. Motor Gasoline Prices",6,"Monthly","42016","1... AM" "Back to Contents","Data 1: U.S. Motor Gasoline Prices" "Sourcekey","EMAEPM0PTA...

  9. Honda Motor Co Ltd | Open Energy Information

    Open Energy Info (EERE)

    Motor Co Ltd Jump to: navigation, search Name: Honda Motor Co Ltd Place: Tokyo, Tokyo, Japan Zip: 107-8556 Sector: Vehicles Product: Leading global car manufacturer which began...

  10. Training: Motor Systems | Department of Energy

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

    Motor Systems Training: Motor Systems April 16, 2014 - 6:33pm Addthis Learn about the diverse training sessions offered. The courses are taught by highly qualified instructors who ...

  11. Energy Management for Motor-Driven Systems

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

    ENERGY Energy Management for Motor Driven Systems The energy savings network-plug into it Energy Management for Motor-Driven Systems Prepared by Gilbert A. McCoy and John G. ...

  12. Turn Motors Off When Not in Use

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

    ... Each start is one factor in the life expectancy and reliability of the motor, and some ... Keep the motor clean so airfow and heat transfer are not impeded * Allow suffcient rest ...

  13. INTEGRATED ELECTRIC DRIVE WITH HV2 MODULAR ELECTRIC MACHINE AND SIC BASED POWER CONVERTERS

    Broader source: Energy.gov [DOE]

    The Ohio State University – Columbus, OH A high performance, high-speed drive capable of integrating into electric grids will be designed, tested and demonstrated. If successful, the proposed project will significantly advance transformer-less drive technologies for a range of industries and motor applications. Fact sheet coming soon.

  14. Microsoft Word - Draft Minutes v 6 073012

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

    Office of Nuclear Energy, USDOE Rebecca Smith-Kevern, Director, Office of Light Water ... Rebecca Smith-Kevern was asked to review technical support for SMR licensing. DOE is ...

  15. ASC-StratV6.indd

    National Nuclear Security Administration (NNSA)

    This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, nor any of their contractors, subcontractors, or their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information apparatus, product, or process disclosed, or represents that its use would not infringe

  16. Microsoft Word - AMS Report v6.doc

    Office of Scientific and Technical Information (OSTI)

    ... Bruce Laube. The authors also thank collaborators Jeff Price, Josh Kimmel, Mark Van Roode, and Oscar Jimenez at Solar Turbines Inc.; Karren More, Peter Tortorelli, Matt Ferber ...

  17. FY2000 Run Schedule v6

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

    31 Oct-99 Nov-99 Dec-99 Jan-00 Feb-00 Mar-00 Apr-00 May-00 Jun-00 Jul-00 Aug-00 Sep-00 Run MaintAP Weekends Shutdown Startup University Holidays Last Updated: 14 MAR 2000...

  18. Microsoft Word - Highlights v6.doc

    Gasoline and Diesel Fuel Update (EIA)

    6 1 October 2006 Short-Term Energy and Winter Fuels Outlook October 10, 2006 Release (Next Update: November 7, 2006) Highlights: Prices for petroleum products and natural gas are projected to increase from current levels as the winter season approaches. But, for the first time since the winter of 2001-02, residential heating fuel prices for most Americans are projected to be either lower than or close to prices prevailing during the previous winter. Under the baseline weather case, winter

  19. rlg-uchicago-06-v6.ppt

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

    Terabytes, Remote Terabytes, and Distributed Terabytes: Four Case Studies in Data Mining Robert Grossman National Center for Data Mining University of Illinois at Chicago and Open Data Partners Introduction: What is data mining? What is Data Mining? Short definition:  Finding interesting structure in data. (Interesting implies actionable.) Long definition:  Semi-automatic discovery of patterns, correlations, changes, associations, anomalies, and other statistically significant structures

  20. CV_2015_Executive V6.pages

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

    Dimitri N. Argyriou Amager Strandvej, 142D 5th, 2300 S, Copenhagen, Denmark. Phone: +46 721 79 20 32, Email: dimitri@esss.se Leadership in Science Accomplished physicist and proven leader with international experience at some of the world's leading laboratories. Consistently providing vision and establishing scientific programs that gained international recognition and praise. Dynamic and experienced management and leadership in science, research and "big-science" projects. Key

  1. Frequency modulation drive for a piezoelectric motor

    DOE Patents [OSTI]

    Mittas, Anthony

    2001-01-01

    A piezoelectric motor has peak performance at a specific frequency f.sub.1 that may vary over a range of frequencies. A drive system is disclosed for operating such a motor at peak performance without feedback. The drive system consists of the motor and an ac source connected to power the motor, the ac source repeatedly generating a frequency over a range from f.sub.1 -.DELTA.x to f.sub.1 +.DELTA.y.

  2. Energy Management for Motor-Driven Systems

    Broader source: Energy.gov [DOE]

    This document assists in establishing an energy management plan, identifying energy savings opportunities, and designing a motor improvement plan.

  3. Motorized control for mirror mount apparatus

    DOE Patents [OSTI]

    Cutburth, Ronald W.

    1989-01-01

    A motorized control and automatic braking system for adjusting mirror mount apparatus is disclosed. The motor control includes a planetary gear arrangement to provide improved pitch adjustment capability while permitting a small packaged design. The motor control for mirror mount adjustment is suitable for laser beam propagation applications. The brake is a system of constant contact, floating detents which engage the planetary gear at selected between-teeth increments to stop rotation instantaneously when the drive motor stops.

  4. Energy Management for Motor Driven Systems

    SciTech Connect (OSTI)

    2000-02-01

    This document assists in establishing an energy management plan, identifying energy savings opportunities, and designing a motor improvement plan.

  5. Evaluation of Retrofit Variable-Speed Furnace Fan Motors

    SciTech Connect (OSTI)

    Aldrich, R.; Williamson, J.

    2014-01-01

    In conjunction with the New York State Energy Research and Development Authority (NYSERDA) and Proctor Engineering Group, Ltd. (PEG), the Consortium for Advanced Residential Buildings (CARB) has evaluated the Concept 3 (tm) replacement motors for residential furnaces. These brushless, permanent magnet (BPM) motors can use much less electricity than their PSC (permanent split capacitor) predecessors. This evaluation focuses on existing homes in the heating-dominated climate of upstate New York with the goals of characterizing field performance and cost-effectiveness. The results of this study are intended to be useful to home performance contractors, HVAC contractors, and home efficiency program stakeholders. The project includes eight homes in and near Syracuse, NY. Tests and monitoring was performed both before and after fan motors were replaced. Average fan power reductions were approximately 126 Watts during heating and 220 Watts during cooling operation. Over the course of entire heating and cooling seasons, these translated into average electric energy savings of 163 kWh. Average cost savings were $20 per year. Homes where the fan was used outside of heating and cooling mode saved an additional $42 per year on average. Results indicate that BPM replacement motors will be most cost-effective in HVAC systems with longer run times and relatively low duct static pressures. More dramatic savings are possible if occupants use the fan-only setting when there is no thermal load. There are millions of cold-climate, U.S. homes that meet these criteria, but the savings in most homes tested in this study were modest.

  6. Improve Motor Operation at Off-Design Voltages | Department of...

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

    Motor Operation at Off-Design Voltages Improve Motor Operation at Off-Design Voltages Motors are designed to operate within 10% of their nameplate rated voltages. When motors ...

  7. ARTI/MCRL Project Report products of motor burnout (Second quarter report)

    SciTech Connect (OSTI)

    Hawley-Fedder, R.

    1995-01-15

    The OSP (Operating Safety Procedure) required for performance of electrical arc testing of CFC replacement fluids was renewed. Electrical breakdown tests at one (1) atmosphere pressure have been performed for R-22, R-134a, and R-125/R-143a (50:50 blend; AZ-50), and breakdown products identified. No differences in HCFC breakdown products are seen in the presence or absence of lubricant oils. The design of the high pressure-high temperature test stand has been finalized, and construction initiated during this quarter. Three motor stators and rotors were received from Tecumseh Products Company for use in motor burnout tests. A test plan for the motor breakdown tests is in preparation.

  8. Electrical connector

    DOE Patents [OSTI]

    Dilliner, Jennifer L.; Baker, Thomas M.; Akasam, Sivaprasad; Hoff, Brian D.

    2006-11-21

    An electrical connector includes a female component having one or more receptacles, a first test receptacle, and a second test receptacle. The electrical connector also includes a male component having one or more terminals configured to engage the one or more receptacles, a first test pin configured to engage the first test receptacle, and a second test pin configured to engage the second test receptacle. The first test receptacle is electrically connected to the second test receptacle, and at least one of the first test pin and the second test pin is shorter in length than the one or more terminals.

  9. Method and apparatus for monitoring motor operated valve motor output torque and power at valve seating

    DOE Patents [OSTI]

    Casada, D.A.

    1996-01-16

    A method and apparatus are provided for monitoring a motor operated valve during the brief period when the valve seats and the torque switch trips to deenergize the valve motor. The method uses voltage measurements on the load side of a deenergizing switch that opens to deenergize the motor to determine, among other things, final motor rotational speed and the decelerating torque at motor deenergization. 14 figs.

  10. Method and apparatus for monitoring motor operated valve motor output torque and power at valve seating

    DOE Patents [OSTI]

    Casada, Donald A.

    1996-01-01

    A method and apparatus are provided for monitoring a motor operated valve during the brief period when the valve seats and the torque switch trips to deenergize the valve motor. The method uses voltage measurements on the load side of a deenergizing switch that opens to deenergize the motor to determine, among other things, final motor rotational speed and the decelerating torque at motor deenergization.

  11. Electrical Safety

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

    ... Fig. 1-1. Flow down of Electrical AHJ and worker responsibility. 3 DOE-HDBK-1092-2013 2.0 ... When equipment contains storage batteries, workers should be protected from the various ...

  12. Control system and method for a hybrid electric vehicle

    DOE Patents [OSTI]

    Tamor, Michael Alan

    2001-03-06

    Several control methods are presented for application in a hybrid electric vehicle powertrain including in various embodiments an engine, a motor/generator, a transmission coupled at an input thereof to receive torque from the engine and the motor generator coupled to augment torque provided by the engine, an energy storage device coupled to receive energy from and provide energy to the motor/generator, an engine controller (EEC) coupled to control the engine, a transmission controller (TCM) coupled to control the transmission and a vehicle system controller (VSC) adapted to control the powertrain.

  13. MotorMaster+ Software Tool Brochure | Department of Energy

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

    Software Tool Brochure MotorMaster+ Software Tool Brochure This brochure provides information on AMO's MotorMaster+ software tool, including how it works, next steps, and how to access it. MotorMaster+ Brochure (2.48 MB) More Documents & Publications MotorMaster+ International Fact Sheet MotorMaster+ Fact Sheet MotorMaster+ Tool

  14. Housing assembly for electric vehicle transaxle

    DOE Patents [OSTI]

    Kalns, Ilmars

    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.

  15. Electric generator

    DOE Patents [OSTI]

    Foster, Jr., John S.; Wilson, James R.; McDonald, Jr., Charles A.

    1983-01-01

    1. In an electrical energy generator, the combination comprising a first elongated annular electrical current conductor having at least one bare surface extending longitudinally and facing radially inwards therein, a second elongated annular electrical current conductor disposed coaxially within said first conductor and having an outer bare surface area extending longitudinally and facing said bare surface of said first conductor, the contiguous coaxial areas of said first and second conductors defining an inductive element, means for applying an electrical current to at least one of said conductors for generating a magnetic field encompassing said inductive element, and explosive charge means disposed concentrically with respect to said conductors including at least the area of said inductive element, said explosive charge means including means disposed to initiate an explosive wave front in said explosive advancing longitudinally along said inductive element, said wave front being effective to progressively deform at least one of said conductors to bring said bare surfaces thereof into electrically conductive contact to progressively reduce the inductance of the inductive element defined by said conductors and transferring explosive energy to said magnetic field effective to generate an electrical potential between undeformed portions of said conductors ahead of said explosive wave front.

  16. Electric vehicle regenerative antiskid braking and traction control system

    DOE Patents [OSTI]

    Cikanek, S.R.

    1995-09-12

    An antiskid braking and traction control system for an electric or hybrid vehicle having a regenerative braking system operatively connected to an electric traction motor, and a separate hydraulic braking system includes one or more sensors for monitoring present vehicle parameters and a processor, responsive to the sensors, for calculating vehicle parameters defining the vehicle behavior not directly measurable by the sensors and determining if regenerative antiskid braking control, requiring hydraulic braking control, or requiring traction control are required. The processor then employs a control strategy based on the determined vehicle state and provides command signals to a motor controller to control the operation of the electric traction motor and to a brake controller to control fluid pressure applied at each vehicle wheel to provide the appropriate regenerative antiskid braking control, hydraulic braking control, and traction control. 10 figs.

  17. Electric vehicle regenerative antiskid braking and traction control system

    DOE Patents [OSTI]

    Cikanek, Susan R.

    1995-01-01

    An antiskid braking and traction control system for an electric or hybrid vehicle having a regenerative braking system operatively connected to an electric traction motor, and a separate hydraulic braking system includes one or more sensors for monitoring present vehicle parameters and a processor, responsive to the sensors, for calculating vehicle parameters defining the vehicle behavior not directly measurable by the sensors and determining if regenerative antiskid braking control, requiring hydrualic braking control, or requiring traction control are required. The processor then employs a control strategy based on the determined vehicle state and provides command signals to a motor controller to control the operation of the electric traction motor and to a brake controller to control fluid pressure applied at each vehicle wheel to provide the appropriate regenerative antiskid braking control, hydraulic braking control, and traction control.

  18. Electrically-Assisted Turbocharger Development for Performance and Emissions

    SciTech Connect (OSTI)

    Bailey, Milton

    2000-08-20

    Turbocharger transient lag inherently imposes a tradeoff between a robust engine response to transient load shifts and exhaust emissions. By itself, a well matched turbocharger for an engine has limited flexibility in improving this transient response. Electrically-assisted turbocharging has been seen as an attractive option to improve response and lower transient emissions. This paper presents the results of a multi-year joint CRADA between DDC and ORNL. Virtual lab diesel simulation models characterized the performance improvement potential of an electrically assisted turbocharger technology. Operating requirements to reduce transient duration between load shift time by up to 50% were determined. A turbomachine has been conceptualized with an integrated motor-generator, providing transient burst boost plus energy recovery capability. Numerous electric motor designs were considered, and a prototype motor was developed, fabricated, and is undergoing tests. Power controls have been designed and fabricated.

  19. Single phase four pole/six pole motor

    DOE Patents [OSTI]

    Kirschbaum, H.S.

    1984-10-09

    A single phase alternating current electric motor is provided with a main stator winding having two coil groups each including the series connection of three coils. These coil groups can be connected in series for six pole operation and in parallel for four pole operation. The coils are approximately equally spaced around the periphery of the machine but are not of equal numbers of turns. The two coil groups are identically wound and spaced 180 mechanical degrees apart. One coil of each group has more turns and a greater span than the other two coils. 10 figs.

  20. Six pole/eight pole single-phase motor

    DOE Patents [OSTI]

    Kirschbaum, Herbert S.

    1984-01-01

    A single phase alternating current electric motor is provided with a main stator winding having two coil groups which are connected to form eight poles for eight-pole operation and to form six poles for six-pole operation. Each group contains four series connected coil elements with each element spanning approximately one-seventh of the periphery of the machine. The coil groups are spaced 180 mechanical degrees apart such that each end coil of one group overlaps one of the end coils of the other group. An auxiliary stator winding having two coil groups with the same relative angular displacement as the main stator winding coil groups is included.

  1. Single phase four pole/six pole motor

    DOE Patents [OSTI]

    Kirschbaum, Herbert S.

    1984-01-01

    A single phase alternating current electric motor is provided with a main stator winding having two coil groups each including the series connection of three coils. These coil groups can be connected in series for six pole operation and in parallel for four pole operation. The coils are approximately equally spaced around the periphery of the machine but are not of equal numbers of turns. The two coil groups are identically wound and spaced 180 mechanical degrees apart. One coil of each group has more turns and a greater span than the other two coils.

  2. Fact #790: July 29, 2013 States Beginning to Tax Electric Vehicles for Road Use

    Broader source: Energy.gov [DOE]

    The maintenance of our highways has traditionally been funded from a combination or Federal and state taxes collected at the pump from the sale of motor fuels. Because electric vehicles (EVs) do...

  3. ETA-HTP10 - Measurement and Evaluation of Hybrid Electric Vehicle...

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

    ... by an electric motor-generator system, an ... Reserved 6 7.11 Test Engineer - The individual(s) ... 8.3 ETA-HAC01 - "Control, Close-out and Storage of ...

  4. Notice of Intent: Upcoming Funding Opportunity for Next Generation of Electric Machines Projects

    Broader source: Energy.gov [DOE]

    The Advanced Manufacturing Office intends to issue a new funding opportunity for work to develop Next Generation of Electric Machines (NGEM). NGEMs combine high power density, high RPM motors with integrated power electronics.

  5. Hybrid-Electric Porsche GT3R to Make North American Debut | Department...

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

    Petit Le Mans race in Georgia to feature five green vehicles Green Racing Initiative seeks to encourage development of energy efficient vehicles Two 60 kW electric motors part of ...

  6. Diesel Engine Waste Heat Recovery Utilizing Electric Turbocompound Technology

    SciTech Connect (OSTI)

    Hopman, Ulrich,; Kruiswyk, Richard W.

    2005-07-05

    Caterpillar's Technology & Solutions Division conceived, designed, built and tested an electric turbocompound system for an on-highway heavy-duty truck engine. The heart of the system is a unique turbochargerr with an electric motor/generator mounted on the shaft between turbine and compressor wheels. When the power produced by the turbocharger turbine exceeds the power of the compressor, the excess power is converted to electrical power by the generator on the turbo shaft; that power is then used to help turn the crankshaft via an electric motor mounted in the engine flywheel housing. The net result is an improvement in engine fuel economy. The electric turbocompound system provides added control flexibility because it is capable of varying the amount of power extracted from the exhaust gases, thus allowing for control of engine boost. The system configuration and design, turbocharger features, control system development, and test results are presented.

  7. Method and apparatus for controlling multiple motors

    DOE Patents [OSTI]

    Jones, Rollin G.; Kortegaard, Bert L.; Jones, David F.

    1987-01-01

    A method and apparatus are provided for simultaneously controlling a plurality of stepper motors. Addressing circuitry generates address data for each motor in a periodic address sequence. Memory circuits respond to the address data for each motor by accessing a corresponding memory location containing a first operational data set functionally related to a direction for moving the motor, speed data, and rate of speed change. First logic circuits respond to the first data set to generate a motor step command. Second logic circuits respond to the command from the first logic circuits to generate a third data set for replacing the first data set in memory with a current operational motor status, which becomes the first data set when the motor is next addressed.

  8. Electrostatic generator/motor configurations

    DOE Patents [OSTI]

    Post, Richard F

    2014-02-04

    Electrostatic generators/motors designs are provided that generally may include a first cylindrical stator centered about a longitudinal axis; a second cylindrical stator centered about the axis, a first cylindrical rotor centered about the axis and located between the first cylindrical stator and the second cylindrical stator. The first cylindrical stator, the second cylindrical stator and the first cylindrical rotor may be concentrically aligned. A magnetic field having field lines about parallel with the longitudinal axis is provided.

  9. Hermetically sealed superconducting magnet motor

    DOE Patents [OSTI]

    DeVault, Robert C.; McConnell, Benjamin W.; Phillips, Benjamin A.

    1996-01-01

    A hermetically sealed superconducting magnet motor includes a rotor separated from a stator by either a radial gap, an axial gap, or a combined axial and radial gap. Dual conically shaped stators are used in one embodiment to levitate a disc-shaped rotor made of superconducting material within a conduit for moving cryogenic fluid. As the rotor is caused to rotate when the field stator is energized, the fluid is pumped through the conduit.

  10. Hermetically sealed superconducting magnet motor

    DOE Patents [OSTI]

    DeVault, R.C.; McConnell, B.W.; Phillips, B.A.

    1996-07-02

    A hermetically sealed superconducting magnet motor includes a rotor separated from a stator by either a radial gap, an axial gap, or a combined axial and radial gap. Dual conically shaped stators are used in one embodiment to levitate a disc-shaped rotor made of superconducting material within a conduit for moving cryogenic fluid. As the rotor is caused to rotate when the field stator is energized, the fluid is pumped through the conduit. 6 figs.

  11. The Development and Demonstration of an Electric Submersible Pump at High

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

    Temperatures - High-temperature Motor Windings for Down-hole Pumps Used in Geothermal Energy Production; 2010 Geothermal Technology Program Peer Review Report | Department of Energy The Development and Demonstration of an Electric Submersible Pump at High Temperatures - High-temperature Motor Windings for Down-hole Pumps Used in Geothermal Energy Production; 2010 Geothermal Technology Program Peer Review Report The Development and Demonstration of an Electric Submersible Pump at High

  12. Insulation assembly for electric machine

    DOE Patents [OSTI]

    Rhoads, Frederick W.; Titmuss, David F.; Parish, Harold; Campbell, John D.

    2013-10-15

    An insulation assembly is provided that includes a generally annularly-shaped main body and at least two spaced-apart fingers extending radially inwards from the main body. The spaced-apart fingers define a gap between the fingers. A slot liner may be inserted within the gap. The main body may include a plurality of circumferentially distributed segments. Each one of the plurality of segments may be operatively connected to another of the plurality of segments to form the continuous main body. The slot liner may be formed as a single extruded piece defining a plurality of cavities. A plurality of conductors (extendable from the stator assembly) may be axially inserted within a respective one of the plurality of cavities. The insulation assembly electrically isolates the conductors in the electric motor from the stator stack and from other conductors.

  13. Turn Motors Off When Not in Use | Department of Energy

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

    Turn Motors Off When Not in Use Turn Motors Off When Not in Use Motors do not use energy when turned off. Reducing motor operating time by just 10% usually saves more energy than replacing a standard efficiency motor with a premium efficiency motor. This tip sheet discusses pros and cons of repeated motor starts and stops and provides suggested actions. Motor Systems Tip Sheet #10 Turn Motors Off When Not in Use (November 2012) (458 KB) More Documents & Publications Improving Motor and Drive

  14. Electric machine and current source inverter drive system

    DOE Patents [OSTI]

    Hsu, John S

    2014-06-24

    A drive system includes an electric machine and a current source inverter (CSI). This integration of an electric machine and an inverter uses the machine's field excitation coil for not only flux generation in the machine but also for the CSI inductor. This integration of the two technologies, namely the U machine motor and the CSI, opens a new chapter for the component function integration instead of the traditional integration by simply placing separate machine and inverter components in the same housing. Elimination of the CSI inductor adds to the CSI volumetric reduction of the capacitors and the elimination of PMs for the motor further improve the drive system cost, weight, and volume.

  15. EV Everywhere: America's Plug-In Electric Vehicle Market Charges Forward

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

    | Department of Energy America's Plug-In Electric Vehicle Market Charges Forward EV Everywhere: America's Plug-In Electric Vehicle Market Charges Forward January 22, 2014 - 6:35pm Addthis Hyundai Fuel Cell 1 of 14 Hyundai Fuel Cell Pictured here is Secretary Moniz looking at the fuel cell and motor used to power Hyundai's Tucson fuel cell vehicle. Fuel cell vehicles use hydrogen to produce electricity, which powers an electric motor to make the vehicle and its accessories work. Image: Sarah

  16. Using the motor to monitor pump conditions

    SciTech Connect (OSTI)

    Casada, D.

    1996-12-01

    When the load of a mechanical device being driven by a motor changes, whether in response to changes in the overall process or changes in the performance of the driven device, the motor inherently responds. For induction motors, the current amplitude and phase angle change as the shaft load changes. By examining the details of these changes in amplitude and phase, load fluctuations of the driven device can be observed. The usefulness of the motor as a transducer to improve the understanding of devices with high torque fluctuations, such as positive displacement compressors and motor-operated valves, has been recognized and demonstrated for a number of years. On such devices as these, the spectrum of the motor current amplitude, phase, or power normally has certain characteristic peaks associated with various load components, such as the piston stroke or gear tooth meshing frequencies. Comparison and trending of the amplitudes of these peaks has been shown to provide some indication of their mechanical condition. For most centrifugal pumps, the load fluctuations are normally low in torque amplitude, and as a result, the motor experiences a correspondingly lower level of load fluctuation. However, both laboratory and field test data have demonstrated that the motor does provide insight into some important pump performance conditions, such as hydraulic stability and pump-to-motor alignment. Comparisons of other dynamic signals, such as vibration and pressure pulsation, to motor data for centrifugal pumps are provided. The effects of inadequate suction head, misalignment, mechanical and hydraulic unbalance on these signals are presented.

  17. Integrated Vehicle Thermal Management - Combining Fluid Loops in Electric Drive Vehicles (Presentation)

    SciTech Connect (OSTI)

    Rugh, J. P.

    2013-07-01

    Plug-in hybrid electric vehicles and electric vehicles have increased vehicle thermal management complexity, using separate coolant loop for advanced power electronics and electric motors. Additional thermal components result in higher costs. Multiple cooling loops lead to reduced range due to increased weight. Energy is required to meet thermal requirements. This presentation for the 2013 Annual Merit Review discusses integrated vehicle thermal management by combining fluid loops in electric drive vehicles.

  18. Vehicle Technologies Office: 2015 Electric Drive Technologies Annual R&D

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

    Progress Report | Department of Energy Electric Drive Technologies Annual R&D Progress Report Vehicle Technologies Office: 2015 Electric Drive Technologies Annual R&D Progress Report The Electric Drive Technologies research and development (R&D) subprogram within the DOE Vehicle Technologies Office (VTO) provides support and guidance for many cutting-edge automotive technologies under development. Research is focused on developing power electronics (PE), electric motor, and

  19. Rotary steerable motor system for underground drilling

    DOE Patents [OSTI]

    Turner, William E.; Perry, Carl A.; Wassell, Mark E.; Barbely, Jason R.; Burgess, Daniel E.; Cobern, Martin E.

    2008-06-24

    A preferred embodiment of a system for rotating and guiding a drill bit in an underground bore includes a drilling motor and a drive shaft coupled to drilling motor so that drill bit can be rotated by the drilling motor. The system further includes a guidance module having an actuating arm movable between an extended position wherein the actuating arm can contact a surface of the bore and thereby exert a force on the housing of the guidance module, and a retracted position.

  20. Rotary steerable motor system for underground drilling

    DOE Patents [OSTI]

    Turner, William E.; Perry, Carl A.; Wassell, Mark E.; Barbely, Jason R.; Burgess, Daniel E.; Cobern, Martin E.

    2010-07-27

    A preferred embodiment of a system for rotating and guiding a drill bit in an underground bore includes a drilling motor and a drive shaft coupled to drilling motor so that drill bit can be rotated by the drilling motor. The system further includes a guidance module having an actuating arm movable between an extended position wherein the actuating arm can contact a surface of the bore and thereby exert a force on the housing of the guidance module, and a retracted position.

  1. Electric vehicles move closer to market

    SciTech Connect (OSTI)

    O`Connor, L.

    1995-03-01

    This article reports that though battery technology is currently limiting the growth of EVs, the search for improvements is spurring innovative engineering developments. As battery makers, automakers, national laboratories, and others continue their search for a practical source of electric power that will make electric vehicles (EVs) more viable, engineers worldwide are making progress in other areas of EV development. Vector control, for example, enables better regulation of motor torque and speed; composite and aluminum parts reduce the vehicle`s weight, which in turn reduces the load on the motor and battery; and flywheel energy storage systems, supercapacitors, regenerative brake systems, and hybrid/electric drive trains increase range and acceleration. Despite efforts to develop an electric vehicle from the ground up, most of the early EVs to be sold in the United States will likely be converted from gasoline-powered vehicles. Chrysler Corp., for example, is expected to sell electric versions of its minivans and build them on the same assembly line as its gasoline-powered vehicles to reduce costs. The pace of engineering development in this field is fast and furious. Indeed, it is virtually impossible to monitor all emerging EV technology. To meet their quotas, the major automakers may even consider buying credits from smaller, innovative EV manufacturers. But whatever stopgap measures vehicle makers take, technology development will be the driving force behind long-term EV growth.

  2. Integrated Inverter For Driving Multiple Electric Machines

    DOE Patents [OSTI]

    Su, Gui-Jia [Knoxville, TN; Hsu, John S [Oak Ridge, TN

    2006-04-04

    An electric machine drive (50) has a plurality of inverters (50a, 50b) for controlling respective electric machines (57, 62), which may include a three-phase main traction machine (57) and two-phase accessory machines (62) in a hybrid or electric vehicle. The drive (50) has a common control section (53, 54) for controlling the plurality of inverters (50a, 50b) with only one microelectronic processor (54) for controlling the plurality of inverters (50a, 50b), only one gate driver circuit (53) for controlling conduction of semiconductor switches (S1-S10) in the plurality of inverters (50a, 50b), and also includes a common dc bus (70), a common dc bus filtering capacitor (C1) and a common dc bus voltage sensor (67). The electric machines (57, 62) may be synchronous machines, induction machines, or PM machines and may be operated in a motoring mode or a generating mode.

  3. System and method for determining stator winding resistance in an AC motor using motor drives

    DOE Patents [OSTI]

    Lu, Bin; Habetler, Thomas G; Zhang, Pinjia

    2013-02-26

    A system and method for determining the stator winding resistance of AC motors is provided. The system includes an AC motor drive having an input connectable to an AC source and an output connectable to an input terminal of an AC motor, a pulse width modulation (PWM) converter having switches therein to control current flow and terminal voltages in the AC motor, and a control system connected to the PWM converter. The control system generates a command signal to cause the PWM converter to control an output of the AC motor drive corresponding to an input to the AC motor, selectively generates a modified command signal to cause the PWM converter to inject a DC signal into the output of the AC motor drive, and determines a stator winding resistance of the AC motor based on the DC signal of at least one of the voltage and current.

  4. Estimating Motor Efficiency in the Field

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

    acceptable methods and devices, motor effciency values can be obtained at full and part load. ... The necessary instruments are costly, and the process is very time and labor ...

  5. List of Motors Incentives | Open Energy Information

    Open Energy Info (EERE)

    DuctAir sealing Furnaces Heat pumps Lighting Motors Refrigerators Water Heaters Windows Photovoltaics Solar Water Heat Ground Source Heat Pumps Yes Burbank Water & Power -...

  6. Catalytically Induced Electrokinetics for Motors and Micropumps...

    Office of Scientific and Technical Information (OSTI)

    Electrokinetics for Motors and Micropumps. Abstract not provided. Authors: Paxton, Walter F Publication Date: 2011-10-01 OSTI Identifier: 1118642 Report Number(s):...

  7. Sterling Motor Technologie | Open Energy Information

    Open Energy Info (EERE)

    Technologie Jump to: navigation, search Name: Sterling Motor Technologie Place: Karlsruhe, Baden-Wrttemberg, Germany Zip: 76131 Product: Development of sterling engines....

  8. Price of Motor Gasoline Through Retail Outlets

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    & Stocks by State (Dollars per Gallon Excluding Taxes) Data Series: Retail Price - Motor Gasoline Retail Price - Regular Gasoline Retail Price - Midgrade Gasoline Retail Price...

  9. Motor Wave Group | Open Energy Information

    Open Energy Info (EERE)

    Wave Group Jump to: navigation, search Name: Motor Wave Group Place: Hong Kong Region: China Sector: Marine and Hydrokinetic Website: www.motorwavegroup.com This company is listed...

  10. ,"Motor Gasoline Sales Through Retail Outlets Prices "

    U.S. Energy Information Administration (EIA) Indexed Site

    ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Motor Gasoline Sales Through Retail Outlets Prices ",60,"Annual",2014,"6301984" ,"Release...

  11. Motor Systems Assessment Training, Including Use of the Motor Systems Tool Suite

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

    Motor Systems Assessment Training Presented by: Gilbert McCoy, PE Washington State University Extension Energy Program (360) 956-2086 mccoyg@energy.wsu.edu 2 Motor Systems Assessment Training 3 Motor Systems Assessment Training Department of Energy Information Resources U.S. DOE Industrial Technologies Program (ITP) BestPractices Website www.eere.energy.gov/industry/bestpractices EERE Information Center (877) 337-3463 Or www.eere.energy.gov/informationcenter 4 Motor Systems Assessment Training

  12. Combined Electric Machine and Current Source Inverter Drive System - Energy

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

    Innovation Portal Hydrogen and Fuel Cell Hydrogen and Fuel Cell Energy Analysis Energy Analysis Advanced Materials Advanced Materials Find More Like This Return to Search Combined Electric Machine and Current Source Inverter Drive System Oak Ridge National Laboratory Contact ORNL About This Technology Publications: PDF Document Publication 11-G00249_ID2505.pdf (764 KB) Technology Marketing SummaryThis technology is a drive system that includes a permanent magnet-less (PM-L) electric motor

  13. Electric vehicle drive train with rollback detection and compensation

    DOE Patents [OSTI]

    Konrad, C.E.

    1994-12-27

    An electric vehicle drive train includes a controller for detecting and compensating for vehicle rollback, as when the vehicle is started upward on an incline. The vehicle includes an electric motor rotatable in opposite directions corresponding to opposite directions of vehicle movement. A gear selector permits the driver to select an intended or desired direction of vehicle movement. If a speed and rotational sensor associated with the motor indicates vehicle movement opposite to the intended direction of vehicle movement, the motor is driven to a torque output magnitude as a nonconstant function of the rollback speed to counteract the vehicle rollback. The torque function may be either a linear function of speed or a function of the speed squared. 6 figures.

  14. Electric vehicle drive train with rollback detection and compensation

    DOE Patents [OSTI]

    Konrad, Charles E. (Roanoke, VA)

    1994-01-01

    An electric vehicle drive train includes a controller for detecting and compensating for vehicle rollback, as when the vehicle is started upward on an incline. The vehicle includes an electric motor rotatable in opposite directions corresponding to opposite directions of vehicle movement. A gear selector permits the driver to select an intended or desired direction of vehicle movement. If a speed and rotational sensor associated with the motor indicates vehicle movement opposite to the intended direction of vehicle movement, the motor is driven to a torque output magnitude as a nonconstant function of the rollback speed to counteract the vehicle rollback. The torque function may be either a linear function of speed or a function of the speed squared.

  15. Electricity Monthly Update

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

    Contact Information and Staff The Electricity Monthly Update is prepared by the Electric Power Operations Team, Office of Electricity, Renewables and Uranium Statistics, U.S....

  16. Electricity Monthly Update

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

    Methodology and Documentation General The Electricity Monthly Update is prepared by the Electric Power Operations Team, Office of Electricity, Renewables and Uranium Statistics,...

  17. Harsh-environment motor renovation - the only alternative in an emergency

    SciTech Connect (OSTI)

    Hendricks, J.R.; Farwell, C.R. Jr.

    1988-01-01

    It is difficult for utilities to obtain identical replacements for safety-related motors in an emergency because of the limited number of renovation facilities and the utilities' understanding of the renovation process. This paper addresses the renovation of motors installed in harsh environments. It also applies to mild-environment safety-related materials, wherein improperly related electrical materials could affect seismic qualification and catastrophic failures while operating at the motor's temperature extreme. The purpose of this paper is to provide utilities with insight into today's renovation process and its complexity when dealing with issues such as regulatory guides 10CFR50.49, 10CFR50 Appendix B, and 10CFR21.

  18. Proton Motor Fuel Cell GmbH | Open Energy Information

    Open Energy Info (EERE)

    Motor Fuel Cell GmbH Jump to: navigation, search Name: Proton Motor Fuel Cell GmbH Place: Starnberg, Germany Zip: D-82319 Product: Proton Motor Fuel Cell has been developing and...

  19. Replacement, Variable-Speed Motors for Furnaces, Syracuse, New...

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

    These brushless, permanent-magnet (BPM) motors can use less than half the power of conventional permanent, split-capacitor (PSC) motors. BPM motors are always recommended for new ...

  20. Boost Converters for Gas Electric and Fuel Cell Hybrid Electric Vehicles

    SciTech Connect (OSTI)

    McKeever, JW

    2005-06-16

    Hybrid electric vehicles (HEVs) are driven by at least two prime energy sources, such as an internal combustion engine (ICE) and propulsion battery. For a series HEV configuration, the ICE drives only a generator, which maintains the state-of-charge (SOC) of propulsion and accessory batteries and drives the electric traction motor. For a parallel HEV configuration, the ICE is mechanically connected to directly drive the wheels as well as the generator, which likewise maintains the SOC of propulsion and accessory batteries and drives the electric traction motor. Today the prime energy source is an ICE; tomorrow it will very likely be a fuel cell (FC). Use of the FC eliminates a direct drive capability accentuating the importance of the battery charge and discharge systems. In both systems, the electric traction motor may use the voltage directly from the batteries or from a boost converter that raises the voltage. If low battery voltage is used directly, some special control circuitry, such as dual mode inverter control (DMIC) which adds a small cost, is necessary to drive the electric motor above base speed. If high voltage is chosen for more efficient motor operation or for high speed operation, the propulsion battery voltage must be raised, which would require some type of two-quadrant bidirectional chopper with an additional cost. Two common direct current (dc)-to-dc converters are: (1) the transformer-based boost or buck converter, which inverts a dc voltage, feeds the resulting alternating current (ac) into a transformer to raise or lower the voltage, and rectifies it to complete the conversion; and (2) the inductor-based switch mode boost or buck converter [1]. The switch-mode boost and buck features are discussed in this report as they operate in a bi-directional chopper. A benefit of the transformer-based boost converter is that it isolates the high voltage from the low voltage. Usually the transformer is large, further increasing the cost. A useful feature

  1. A Five-Leg Inverter for Driving a Traction Motor and a Compressor Motor

    SciTech Connect (OSTI)

    Su, Gui-Jia; Hsu, John S

    2006-01-01

    This paper presents an integrated inverter for speed control of a traction motor and a compressor motor to reduce the compressor drive cost in EV/HEV applications. The inverter comprises five phase-legs; three of which are for control of a three-phase traction motor and the remaining two for a two-phase compressor motor with three terminals. The common terminal of the two-phase motor is tied to the neutral point of the three-phase traction motor to eliminate the requirement of a third phase leg. Further cost savings are made possible by sharing the switching devices, dc bus filter capacitors, gate drive power supplies, and control circuit. Simulation and experimental results are included to verify that speed control of the two motors is independent from each other.

  2. Honda motor company's CVCC engine

    SciTech Connect (OSTI)

    Abernathy, W.J.; Ronan, L.

    1980-07-01

    Honda Motor Company of Japan in a four-year period from 1968 to 1872 designed, tested, and mass-produced a stratified charge engine, the CVCC, which in comparison to conventional engines of similar output at the time was lower in CO, HC and NO/sub x/ emissions and higher in fuel economy. Honda developed the CVCC engine without government assistance or outside help. Honda's success came at a time when steadily increasing fuel costs and the various provisions of the Clean Air Act had forced US automakers to consider possible alternatives to the conventional gasoline engine. While most major engine manufacturers had investigated some form of stratified charge engine, Honda's CVCC was the only one to find successful market application. This case study examines the circumstances surrounding the development of the CVCC engine and its introduction into the Japanese and American markets.

  3. Electrostatic generator/motor configurations

    DOE Patents [OSTI]

    Post, Richard Freeman

    2012-09-11

    Electrostatic generators/motors designs are provided that include a stator fixedly connected to a first central support centered about a central axis. The stator elements are attached to the first central support. Similarly, a second stator is connected to a central support centered about the central axis, and the second stator has stator elements attached to the second central support. A rotor is located between the first stator and the second stator and includes an outer support, where the rotor is rotatably centered about the central axis, the rotor having elements in contact with the outer support, each rotor element having an extending rotor portion that extends radially from the outer support toward the axis of rotation.

  4. Electrical machine

    DOE Patents [OSTI]

    De Bock, Hendrik Pieter Jacobus; Alexander, James Pellegrino; El-Refaie, Ayman Mohamed Fawzi; Gerstler, William Dwight; Shah, Manoj Ramprasad; Shen, Xiaochun

    2016-06-21

    An apparatus, such as an electrical machine, is provided. The apparatus can include a rotor defining a rotor bore and a conduit disposed in and extending axially along the rotor bore. The conduit can have an annular conduit body defining a plurality of orifices disposed axially along the conduit and extending through the conduit body. The rotor can have an inner wall that at least partially defines the rotor bore. The orifices can extend through the conduit body along respective orifice directions, and the rotor and conduit can be configured to provide a line of sight along the orifice direction from the respective orifices to the inner wall.

  5. Electrical receptacle

    DOE Patents [OSTI]

    Leong, Robert

    1993-01-01

    The invention is a receptacle for a three prong electrical plug which has either a tubular or U-shaped grounding prong. The inventive receptacle has a grounding prong socket which is sufficiently spacious to prevent the socket from significantly stretching when a larger, U-shaped grounding prong is inserted into the socket, and having two ridges to allow a snug fit when a smaller tubular shape grounding prong is inserted into the socket. The two ridges are made to prevent the socket from expanding when either the U-shaped grounding prong or the tubular grounding prong is inserted.

  6. Electrical receptacle

    DOE Patents [OSTI]

    Leong, R.

    1993-06-22

    The invention is a receptacle for a three prong electrical plug which has either a tubular or U-shaped grounding prong. The inventive receptacle has a grounding prong socket which is sufficiently spacious to prevent the socket from significantly stretching when a larger, U-shaped grounding prong is inserted into the socket, and having two ridges to allow a snug fit when a smaller tubular shape grounding prong is inserted into the socket. The two ridges are made to prevent the socket from expanding when either the U-shaped grounding prong or the tubular grounding prong is inserted.

  7. Premium Efficiency Motor Selection and Application Guide - A Handbook for

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

    Industry | Department of Energy Premium Efficiency Motor Selection and Application Guide - A Handbook for Industry Premium Efficiency Motor Selection and Application Guide - A Handbook for Industry This handbook informs new motor purchase decisions by identifying energy and cost savings that can come from replacing motors with premium efficiency units. The handbook provides an overview of current motor use in the industrial sector, including the development of motor efficiency standards,

  8. Estimating Motor Efficiency in the Field | Department of Energy

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

    Estimating Motor Efficiency in the Field Estimating Motor Efficiency in the Field Some utility companies and public agencies offer rebates to encourage customers to upgrade their existing standard efficiency motors to premium efficiency motors. It is important to know the efficiency of the existing motor and how it is being used to accurately estimate potential annual energy and dollar savings. This tip sheet provides suggested actions and estimates of savings from improved efficiency. Motor

  9. Improve Motor System Efficiency with MotorMaster+, Software Tools for Industry, Industrial Technologies Program (ITP) (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2008-12-01

    This fact sheet describes how the Industrial Technologies Program MotorMaster+ software tool aids industrial plants with finding energy-efficient motor replacement options and managing motor systems.

  10. A New Class of Switched Reluctance Motors without Permanent Magnets...

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

    Motors without Permanent Magnets A New Class of Switched Reluctance Motors without Permanent Magnets 2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program ...

  11. The Importance of Motor Shaft Alignment | Department of Energy

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

    The Importance of Motor Shaft Alignment The Importance of Motor Shaft Alignment The objective of optimized shaft alignment is to increase the operating life span of rotating ...

  12. ,"Finished Motor Gasoline Refinery, Bulk Terminal, and Natural...

    U.S. Energy Information Administration (EIA) Indexed Site

    AM" "Back to Contents","Data 1: Finished Motor Gasoline Refinery, Bulk Terminal, and ... "Date","U.S. Finished Motor Gasoline Stocks at Refineries, Bulk ...

  13. Premium Efficiency Motor Selection and Application Guide - A...

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

    Premium Efficiency Motor Selection and Application Guide - A Handbook for Industry Premium Efficiency Motor Selection and Application Guide - A Handbook for Industry This handbook ...

  14. Continuous Energy Improvement in Motor Driven Systems - A Guidebook...

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

    Energy Improvement in Motor Driven Systems - A Guidebook for Industry Continuous Energy Improvement in Motor Driven Systems - A Guidebook for Industry This guidebook provides a ...

  15. United States Industrial Motor Systems Market Opportunities Assessment...

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

    Motor Systems Market Opportunities Assessment: Executive Summary United States Industrial Motor Systems Market Opportunities Assessment: Executive Summary In addition to serving ...

  16. Improving Motor and Drive System Performance - A Sourcebook for...

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

    Motor and Drive System Performance - A Sourcebook for Industry Improving Motor and Drive System Performance - A Sourcebook for Industry This sourcebook outlines opportunities to ...

  17. FULLY INTEGRATED HIGH SPEED MEGAWATT CLASS MOTOR AND HIGH FREQUENCY...

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

    FULLY INTEGRATED HIGH SPEED MEGAWATT CLASS MOTOR AND HIGH FREQUENCY VARIABLE SPEED DRIVE SYSTEM FULLY INTEGRATED HIGH SPEED MEGAWATT CLASS MOTOR AND HIGH FREQUENCY VARIABLE SPEED ...

  18. ,"U.S. Motor Gasoline Refiner Sales Volumes"

    U.S. Energy Information Administration (EIA) Indexed Site

    Data for" ,"Data 1","U.S. Motor Gasoline Refiner Sales ... AM" "Back to Contents","Data 1: U.S. Motor Gasoline Refiner Sales Volumes" ...

  19. Minimize Adverse Motor and Adjustable Speed Drive Interactions

    SciTech Connect (OSTI)

    Not Available

    2008-07-01

    This is one in a series of tip sheets to help manufacturers optimize their industrial motor and motor-driven systems.

  20. When Should Inverter-Duty Motors Be Specified?

    SciTech Connect (OSTI)

    Not Available

    2008-07-01

    This is one in a series of tip sheets to help manufacturers optimize their industrial motor and motor-driven systems.

  1. Improve Motor Operation at Off-Design Voltages

    SciTech Connect (OSTI)

    Not Available

    2008-07-01

    This is one in a series of tip sheets to help manufacturers optimize their industrial motor and motor-driven systems.

  2. Improving Motor and Drive System Performance: A Sourcebook for Industry

    SciTech Connect (OSTI)

    Not Available

    2008-09-01

    This is one in a series of sourcebooks to assist industrial personnel in understanding and optimizing motors and motor-driven systems

  3. Improving Motor and Drive System Performance: A Sourcebook for Industry

    SciTech Connect (OSTI)

    2010-06-25

    This is one in a series of sourcebooks to assist industrial personnel in understanding and optimizing motors and motor-driven systems.

  4. New rocket propellant and motor design offer high-performance...

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

    New rocket propellant and motor design offer high-performance and safety New rocket propellant and motor design offer high-performance and safety Scientists recently flight tested ...

  5. Vision Industries dba Vision Motor Corp | Open Energy Information

    Open Energy Info (EERE)

    Industries dba Vision Motor Corp Jump to: navigation, search Name: Vision Industries (dba Vision Motor Corp) Place: Santa Monica, California Zip: 90405 Product: Santa Monica-based...

  6. Ford Motor Co Sustainable Technologies and Hybrid Programme ...

    Open Energy Info (EERE)

    Motor Co Sustainable Technologies and Hybrid Programme Jump to: navigation, search Name: Ford Motor Co - Sustainable Technologies and Hybrid Programme Place: Allen Park, Michigan...

  7. Nevada Department of Motor Vehicles | Open Energy Information

    Open Energy Info (EERE)

    Nevada Department of Motor Vehicles Name: Nevada Department of Motor Vehicles Address: 555 Wright Way Place: Carson City, Nevada Zip: 89711 Phone Number: 702-486-4368 Website:...

  8. Motor Systems Efficiency Supply Curves | Open Energy Information

    Open Energy Info (EERE)

    Motor Systems Efficiency Supply Curves Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Motor Systems Efficiency Supply Curves AgencyCompany Organization: United...

  9. Improving Motor and Drive System Performance - A Sourcebook for...

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

    The sourcebook is divided into four main sections: Motor and Drive System Basics: Summarizes important terms, relationships, and system design considerations relating to motor and ...

  10. Petroleum Products Table 31. Motor Gasoline Prices by Grade...

    U.S. Energy Information Administration (EIA) Indexed Site

    at end of table. 31. Motor Gasoline Prices by Grade, Sales Type, PAD District, and State 56 Energy Information Administration Petroleum Marketing Annual 1996 Table 31. Motor...

  11. When Should Inverter-Duty Motors Be Specified?

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

    Electronic adjustable speed drives, known as variable frequency drives (VFD), used to be marketed as "usable with any standard motor." However, premature failures of motor ...

  12. United States Industrial Motor-Driven Systems Market Assessment...

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

    Motor-Driven Systems Market Assessment: Charting a Roadmap to Energy Savings for Industry United States Industrial Motor-Driven Systems Market Assessment: Charting a Roadmap to ...

  13. Technology Solutions Case Study: Replacement of Variable-Speed Motors for Furnaces

    SciTech Connect (OSTI)

    2013-02-01

    In conjunction with the New York State Energy Research and Development Authority (NYSERDA) and Proctor Engineering Group, Ltd. (PEG), the Consortium for Advanced Residential Buildings (CARB) evaluated the Concept 3 replacement motors for residential furnaces in eight homes in Syracuse, NY. These brushless, permanent magnet (BPM) motors can use much less electricity than their PSC (permanent split capacitor) predecessors. This evaluation focuses on existing homes in the heating-dominated climate of upstate New York with the goals of characterizing field performance and cost-effectiveness. The results of this study are intended to be useful to home performance contractors, HVAC contractors, and home efficiency program stakeholders. Tests and monitoring was performed both before and after fan motors were replaced. Average fan power reductions were approximately 126 Watts during heating and 220 Watts during cooling operation. Over the course of entire heating and cooling seasons, these translated into average electric energy savings of 163 kWh, with average cost savings of $20 per year. Homes where the fan was used outside of heating and cooling mode saved an additional $42 per year on average. Results indicate that BPM replacement motors will be most cost-effective in HVAC systems with longer run times and relatively low duct static pressures. More dramatic savings are possible if occupants use the fan-only setting when there is no thermal load.

  14. Exchange-Spring Magnets: Nanocomposite Exchange-Spring Magnets for Motor and Generator Applications

    SciTech Connect (OSTI)

    2012-01-01

    REACT Project: ANL will develop a cost-effective exchange-spring magnet to use in the electric motors of wind generators and EVs that uses no rare earth materials. This ANL exchange-spring magnet combines a hard magnetic outer shell with a soft magnetic inner corecoupling these together increases the performance (energy density and operating temperature). The hard and soft magnet composite particles would be created at the molecular level, followed by consolidation in a magnetic field. This process allows the particles to be oriented to maximize the magnetic properties of low-cost and abundant metals, eliminating the need for expensive imported rare earths. The ultimate goal of this project is to demonstrate this new type of magnet in a prototype electric motor.

  15. Workplace Charging Challenge Partner: General Motors | Department...

    Office of Environmental Management (EM)

    ... General Electric Google Nissan San Diego Gas & Electric Siemens Tesla Verizon Behind the workplace charging goal is the EV Everywhere Challenge, which is dedicated to accelerating ...

  16. Extended core for motor/generator

    DOE Patents [OSTI]

    Shoykhet, Boris A.

    2005-05-10

    An extended stator core in a motor/generator can be utilized to mitigate losses in end regions of the core and a frame of the motor/generator. To mitigate the losses, the stator core can be extended to a length substantially equivalent to or greater than a length of a magnetically active portion in the rotor. Alternatively, a conventional length stator core can be utilized with a shortened magnetically active portion to mitigate losses in the motor/generator. To mitigate the losses in the core caused by stator winding, the core can be extended to a length substantially equivalent or greater than a length of stator winding.

  17. Extended core for motor/generator

    DOE Patents [OSTI]

    Shoykhet, Boris A.

    2006-08-22

    An extended stator core in a motor/generator can be utilized to mitigate losses in end regions of the core and a frame of the motor/generator. To mitigate the losses, the stator core can be extended to a length substantially equivalent to or greater than a length of a magnetically active portion in the rotor. Alternatively, a conventional length stator core can be utilized with a shortened magnetically active portion to mitigate losses in the motor/generator. To mitigate the losses in the core caused by stator winding, the core can be extended to a length substantially equivalent or greater than a length of stator winding.

  18. Synchronous motor with soft start element formed between the motor rotor and motor output shaft to successfully synchronize loads that have high inertia and/or high torque

    DOE Patents [OSTI]

    Umans, Stephen D; Nisley, Donald L; Melfi, Michael J

    2014-10-28

    A line-start synchronous motor has a housing, a rotor shaft, and an output shaft. A soft-start coupling portion is operatively coupled to the output shaft and the rotor shaft. The soft-start coupling portion is configurable to enable the synchronous motor to obtain synchronous operation and to drive, at least near synchronous speed during normal steady state operation of the motor, a load having characteristics sufficient to prevent obtaining normal synchronous operation of the motor when the motor is operatively connected to the load in the absence of the soft-start coupling. The synchronous motor is sufficiently rated to obtain synchronous operation and to drive, at least near synchronous speed during normal steady state operation of the motor, a load having characteristics sufficient to prevent obtaining normal synchronous operation of the motor when the motor is operatively connected to the load in the absence of the soft-start coupling.

  19. Electrical system architecture having high voltage bus

    DOE Patents [OSTI]

    Hoff, Brian Douglas; Akasam, Sivaprasad

    2011-03-22

    An electrical system architecture is disclosed. The architecture has a power source configured to generate a first power, and a first bus configured to receive the first power from the power source. The architecture also has a converter configured to receive the first power from the first bus and convert the first power to a second power, wherein a voltage of the second power is greater than a voltage of the first power, and a second bus configured to receive the second power from the converter. The architecture further has a power storage device configured to receive the second power from the second bus and deliver the second power to the second bus, a propulsion motor configured to receive the second power from the second bus, and an accessory motor configured to receive the second power from the second bus.

  20. Six pole/eight pole single-phase motor

    DOE Patents [OSTI]

    Kirschbaum, H.S.

    1984-07-31

    A single phase alternating current electric motor is provided with a main stator winding having two coil groups which are connected to form eight poles for eight-pole operation and to form six poles for six-pole operation. Each group contains four series connected coil elements with each element spanning approximately one-seventh of the periphery of the machine. The coil groups are spaced 180 mechanical degrees apart such that each end coil of one group overlaps one of the end coils of the other group. An auxiliary stator winding having two coil groups with the same relative angular displacement as the main stator winding coil groups is included. 10 figs.