Title :
Stability analysis of the International Space Station electrical power system
Author :
Ly, J.H. ; Truong, C.
Author_Institution :
Aerosp. Corp., Los Angeles, CA, USA
Abstract :
Two novel and efficient approaches to analyze the stability robustness at the interface between source and loads of a direct current (DC) distributed power system subject to loads that are turned on/off arbitrarily and operating at heavy/light power modes are presented. The first one is a rule based algorithm using the Nyquist stability criterion. The second one is based on the multivariable stability margin theory. Each of these two approaches provide a different perspective of the dynamic behavior of the system. The first one provides classical gain and phase margin, while the second one addresses the robustness of the system under simultaneous variations in the loadings. An analysis of the stability of the Flight 5A configuration of the International Space Station electrical power system (ISS EPS) using the Nyquist criterion is presented
Keywords :
Nyquist criterion; power system stability; space vehicle power plants; space vehicles; DC distributed power system; International Space Station; Nyquist criterion; impedance margin; stability; DC-DC power converters; Impedance; International Space Station; Power system analysis computing; Power system dynamics; Power system stability; Robustness; Stability analysis; Stability criteria; Switching converters;
Conference_Titel :
Control Applications, 1999. Proceedings of the 1999 IEEE International Conference on
Conference_Location :
Kohala Coast, HI
Print_ISBN :
0-7803-5446-X
DOI :
10.1109/CCA.1999.806725
