Stability analysis of the International Space Station electrical power system

Author

Ly, J.H. ; Truong, C.

Author_Institution

Aerosp. Corp., Los Angeles, CA, USA

Volume

1

fYear

1999

fDate

1999

Firstpage

628

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Applications, 1999. Proceedings of the 1999 IEEE International Conference on

Conference_Location

Kohala Coast, HI

Print_ISBN

0-7803-5446-X

Type

conf

DOI

10.1109/CCA.1999.806725

Filename

806725