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Title: Method to provide meta-stable operation of a DC microgrid comprising a pulsed load

Abstract

A Hamiltonian surface shaping power flow control (HSSPFC) method is used to analyze the meta-stability and adjust pulsed power loads on a DC electric power distribution network. Pulsed power loads are nonlinear, time-variant systems that cause nonlinear limit-cycles. During the on periods of a pulsed load, the system can be in an unstable state and is damped back to stability during the off state of the load. Therefore, over the entire period of the pulse the system may only be assessed as meta-stable. As shown through simulation, HIL and hardware results, the HSSPFC method is more accurate than the other small-signal approaches, such as Eigenvalues, Nyquist, and Floquet theory, and can reveal important details about the transient responses and performance.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Michigan Technological Univ., Houghton, MI (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1489030
Patent Number(s):
10090764
Application Number:
15/867,276
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
DOE Contract Number:  
NA0003525
Resource Type:
Patent
Resource Relation:
Patent File Date: 2018 Jan 10
Country of Publication:
United States
Language:
English

Citation Formats

Wilson, David G., Weaver, Wayne W., Robinett, III, Rush D., Matthews, Ronald, and Glover, Steven F. Method to provide meta-stable operation of a DC microgrid comprising a pulsed load. United States: N. p., 2018. Web.
Wilson, David G., Weaver, Wayne W., Robinett, III, Rush D., Matthews, Ronald, & Glover, Steven F. Method to provide meta-stable operation of a DC microgrid comprising a pulsed load. United States.
Wilson, David G., Weaver, Wayne W., Robinett, III, Rush D., Matthews, Ronald, and Glover, Steven F. Tue . "Method to provide meta-stable operation of a DC microgrid comprising a pulsed load". United States. https://www.osti.gov/servlets/purl/1489030.
@article{osti_1489030,
title = {Method to provide meta-stable operation of a DC microgrid comprising a pulsed load},
author = {Wilson, David G. and Weaver, Wayne W. and Robinett, III, Rush D. and Matthews, Ronald and Glover, Steven F.},
abstractNote = {A Hamiltonian surface shaping power flow control (HSSPFC) method is used to analyze the meta-stability and adjust pulsed power loads on a DC electric power distribution network. Pulsed power loads are nonlinear, time-variant systems that cause nonlinear limit-cycles. During the on periods of a pulsed load, the system can be in an unstable state and is damped back to stability during the off state of the load. Therefore, over the entire period of the pulse the system may only be assessed as meta-stable. As shown through simulation, HIL and hardware results, the HSSPFC method is more accurate than the other small-signal approaches, such as Eigenvalues, Nyquist, and Floquet theory, and can reveal important details about the transient responses and performance.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {10}
}

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