Nonlinear power flow control for networked AC/DC microgrids

Wilson, David G.; Robinett, Rush D.; Weaver, Wayne W.; Glover, Steven F.

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Title: Nonlinear power flow control for networked AC/DC microgrids

Abstract

A method for designing feedforward and feedback controllers for integration of stochastic sources and loads into a nonlinear networked AC/DC microgrid system is provided. A reduced order model for general networked AC/DC microgrid systems is suitable for HSSPFC control design. A simple feedforward steady state solution is utilized for the feedforward controls block. Feedback control laws are provided for the energy storage systems. A HSSPFC controller design is implemented that incorporates energy storage systems that provides static and dynamic stability conditions for both the DC random stochastic input side and the AC random stochastic load side. Transient performance was investigated for the feedforward/feedback control case. Numerical simulations were performed and provided power and energy storage profile requirements for the networked AC/DC microgrid system overall performance. The HSSPFC design can be implemented in the Matlab/Simulink environment that is compatible with real time simulation/controllers.

Inventors:: Wilson, David G.; Robinett, III, Rush D.; Weaver, Wayne W.; Glover, Steven F.

Issue Date:: 2020-05-26

Research Org.:: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Michigan Technological Univ., Houghton, MI (United States)

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA)

OSTI Identifier:: 1650959

Patent Number(s):: 10666054

Application Number:: 15/982,850

Assignee:: National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM); Michigan Technological University (Houghton, MI)

Patent Classifications (CPCs):: G - PHYSICS G05 - CONTROLLING G05F - SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES

H - ELECTRICITY H02 - GENERATION H02J - CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER

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G - PHYSICS G05 - CONTROLLING G05F - SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
G05F1/66 - Regulating electric power

H - ELECTRICITY H02 - GENERATION H02J - CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER
H02J2203/20 - Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
H02J2300/10 - The dispersed energy generation being of fossil origin, e.g. diesel generators
H02J2310/10 - The network having a local or delimited stationary reach
H02J3/30 - using dynamo-electric machines coupled to flywheels
H02J3/32 - using batteries with converting means
H02J3/38 - Arrangements for parallely feeding a single network by two or more generators, converters or transformers
H02J3/381 - {Dispersed generators}
H02J7/34 - Parallel operation in networks using both storage and other dc sources, e.g. providing buffering

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
Y02E10/30 - Energy from the sea
Y02E10/56 - Power conversion electric or electronic aspects
Y02E10/76 - Power conversion electric or electronic aspects
Y02E60/00 - Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
Y02P80/14 - District level solutions, i.e. local energy networks

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y04 - INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS Y04S - SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
Y04S40/20 - Information technology specific aspects

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DOE Contract Number:: NA0003525

Resource Type:: Patent

Resource Relation:: Patent File Date: 05/17/2018

Country of Publication:: United States

Language:: English

Subject:: 24 POWER TRANSMISSION AND DISTRIBUTION

Citation Formats


                    Wilson, David G., Robinett, III, Rush D., Weaver, Wayne W., and Glover, Steven F. Nonlinear power flow control for networked AC/DC microgrids.  United States: N. p., 2020. 
        Web.

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                    Wilson, David G., Robinett, III, Rush D., Weaver, Wayne W., & Glover, Steven F. Nonlinear power flow control for networked AC/DC microgrids.  United States.

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                    Wilson, David G., Robinett, III, Rush D., Weaver, Wayne W., and Glover, Steven F. Tue .  
        "Nonlinear power flow control for networked AC/DC microgrids".  United States.  https://www.osti.gov/servlets/purl/1650959.

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@article{osti_1650959,

  title        = {Nonlinear power flow control for networked AC/DC microgrids},

  author       = {Wilson, David G. and Robinett, III, Rush D. and Weaver, Wayne W. and Glover, Steven F.},

  abstractNote = {A method for designing feedforward and feedback controllers for integration of stochastic sources and loads into a nonlinear networked AC/DC microgrid system is provided. A reduced order model for general networked AC/DC microgrid systems is suitable for HSSPFC control design. A simple feedforward steady state solution is utilized for the feedforward controls block. Feedback control laws are provided for the energy storage systems. A HSSPFC controller design is implemented that incorporates energy storage systems that provides static and dynamic stability conditions for both the DC random stochastic input side and the AC random stochastic load side. Transient performance was investigated for the feedforward/feedback control case. Numerical simulations were performed and provided power and energy storage profile requirements for the networked AC/DC microgrid system overall performance. The HSSPFC design can be implemented in the Matlab/Simulink environment that is compatible with real time simulation/controllers.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2020},

  month        = {5}

}

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Works referenced in this record:

Methods and Systems for Operating a Power Converter
patent-application, June 2013

Wagoner, Robert Gregory; Smith, David
US Patent Application 13/327077; 20130155732
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20130155732

Wind Mill Power Flow Control with Dump Load and Power Converter
patent-application, November 2010

Gertmar, Lars; Christensen, Hans Christian; Nielsen, Erik Kolby
US Patent Application 11/991326; 20100292852
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20100292852

Synchronous reluctance machine controller
patent, June 2010

Kalev, Claude Michael
US Patent Document 7,741,795
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7741795

Peer-to-Peer: AC Power Grid Compensation Architecture
patent-application, April 2018

Tuladhar, Anil; Flett, Frederick
US Patent Application 15/793909; 20180115160
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20180115160

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Similar Records

Title: Nonlinear power flow control for networked AC/DC microgrids

Abstract

Citation Formats

Methods and Systems for Operating a Power Converter patent-application, June 2013

Wind Mill Power Flow Control with Dump Load and Power Converter patent-application, November 2010

Synchronous reluctance machine controller patent, June 2010

Peer-to-Peer: AC Power Grid Compensation Architecture patent-application, April 2018

Methods and Systems for Operating a Power Converter
patent-application, June 2013

Wind Mill Power Flow Control with Dump Load and Power Converter
patent-application, November 2010

Synchronous reluctance machine controller
patent, June 2010

Peer-to-Peer: AC Power Grid Compensation Architecture
patent-application, April 2018