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

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:
OSTI Identifier:
1489030
Assignee:
National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM); Michigan Technological University (Houghton, MI) SNL
Patent Number(s):
10,090,764
Application Number:
15/867,276
Contract Number:
NA0003525
Resource Relation:
Patent File Date: 2018 Jan 10
Research Org:
National Technology & Engineering Solutions of Sandia, LLC, Albuquerque, NM (United States); Michigan Technological Univ., Houghton, MI (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English