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Title: Computing an operating parameter of a unified power flow controller

A Unified Power Flow Controller described herein comprises a sensor that outputs at least one sensed condition, a processor that receives the at least one sensed condition, a memory that comprises control logic that is executable by the processor; and power electronics that comprise power storage, wherein the processor causes the power electronics to selectively cause the power storage to act as one of a power generator or a load based at least in part upon the at least one sensed condition output by the sensor and the control logic, and wherein at least one operating parameter of the power electronics is designed to facilitate maximal transmittal of electrical power generated at a variable power generation system to a grid system while meeting power constraints set forth by the electrical power grid.
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OSTI Identifier:
National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM) SNL-A
Patent Number(s):
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Resource Relation:
Patent File Date: 2014 Dec 01
Research Org:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
Country of Publication:
United States

Works referenced in this record:

Hamilton’s action principle and thermodynamics of irreversible processes — a unifying procedure for reversible and irreversible processes
journal, January 2001

A note on existence and uniqueness of limit cycles for Liénard systems
journal, July 2005
  • Carletti, Timoteo; Villari, Gabriele
  • Journal of Mathematical Analysis and Applications, Vol. 307, Issue 2, p. 763-773
  • DOI: 10.1016/j.jmaa.2005.01.054

Control of a Three-Degree-of-Freedom Airfoil with Limit-Cycle Behavior
journal, May 2000
  • Clark, Robert L.; Dowell, Earl H.; Frampton, Kenneth D.
  • Journal of Aircraft, Vol. 37, Issue 3, p. 533-536
  • DOI: 10.2514/2.2632

Computation of Unsteady Nonlinear Flows in Cascades Using a Harmonic Balance Technique
journal, May 2002
  • Hall, Kenneth C.; Thomas, Jeffrey P.; Clark, W. S.
  • AIAA Journal, Vol. 40, Issue 5, p. 879-886
  • DOI: 10.2514/2.1754

The stability of nonlinear dissipative systems
journal, October 1976
  • Hill, D.; Moylan, P.
  • IEEE Transactions on Automatic Control, Vol. 21, Issue 5, p. 708-711
  • DOI: 10.1109/TAC.1976.1101352

Nonlinear Control of a Prototypical Wing Section with Torsional Nonlinearity
journal, November 1997
  • Ko, Jeonghwan; Kurdila, Andrew J.; Strganac, Thomas W.
  • Journal of Guidance, Control, and Dynamics, Vol. 20, Issue 6, p. 1181-1189
  • DOI: 10.2514/2.4174

Constructive nonlinear control: a historical perspective
journal, May 2001

The unified power flow controller: a new approach to power transmission control
journal, April 1995
  • Gyugyi, L.; Schauder, C. D.; Williams, S. L.
  • IEEE Transactions on Power Delivery, Vol. 10, Issue 2, p. 1085-1097
  • DOI: 10.1109/61.400878

Unified power-flow control concept for flexible AC transmission systems
journal, January 1992
  • Gyugyi, L.
  • IEE Proceedings C (Generation, Transmission and Distribution), Vol. 139, Issue 4, p. 323-331
  • DOI: 10.1049/ip-c.1992.0048

Flutter of an Airfoil with a Cubic Restoring Force
journal, January 1999
  • Lee, B. H. K.; Jiang, L. Y.; Wong, Y. S.
  • Journal of Fluids and Structures, Vol. 13, Issue 1, p. 75-101
  • DOI: 10.1006/jfls.1998.0190

Implications of passivity in a class of nonlinear systems
journal, August 1974

Passivity-based control of nonlinear systems: a tutorial
conference, January 1997
  • Ortega, R.; Jiang, Z. P.; Hill, D. J.
  • American Control Conference, 1997. Proceedings of the 1997
  • DOI: 10.1109/ACC.1997.611933

Poststability behavior of a two-dimensional airfoil with a structural nonlinearity
journal, November 1994
  • Price, S. J.; Lee, B. H. K.; Alighanbari, H.
  • Journal of Aircraft, Vol. 31, Issue 6, p. 1395-1401
  • DOI: 10.2514/3.46664

Exergy and Entropy Thermodynamic Concepts for Nonlinear Control Design
conference, January 2006
  • Robinett, Rush D.; Wilson, David G.
  • Dynamic Systems and Control, Parts A and B, p. 119-128
  • DOI: 10.1115/IMECE2006-15205

What is a limit cycle?
journal, December 2008
  • Robinett, Rush D.; Wilson, David G.
  • International Journal of Control, Vol. 81, Issue 12, p. 1886-1900
  • DOI: 10.1080/00207170801927163

Exergy sustainability.
report, May 2006
  • Robinett, Rush D.; Wilson, David Gerald; Reed, Alfred W.
  • SAND2006-2759
  • DOI: 10.2172/887482

Dissipative dynamical systems part I: General theory
journal, January 1972
  • Willems, Jan C.
  • Archive for Rational Mechanics and Analysis, Vol. 45, Issue 5, p. 321-351
  • DOI: 10.1007/BF00276493

Energy concepts in the state-space theory of nonlinear n-ports: Part I-Passivity
journal, January 1981
  • Wyatt, J.; Chua, L.; Gannett, J.
  • IEEE Transactions on Circuits and Systems, Vol. 28, Issue 1, p. 48-61
  • DOI: 10.1109/TCS.1981.1084907

Energy Concepts in the State-Space Theory of Nonlinear n-Ports: Part II - Losslessness
journal, July 1982
  • Wyatt, J.; Chua, L.; Gannett, J.
  • IEEE Transactions on Circuits and Systems, Vol. 29, Issue 7, p. 417-430
  • DOI: 10.1109/TCS.1982.1085180

Basic control of unified power flow controller
journal, January 1997
  • Papic, I.; Zunko, P.; Povh, D.
  • IEEE Transactions on Power Systems, Vol. 12, Issue 4, p. 1734-1739
  • DOI: 10.1109/59.627884