Title :
The effects of nonlinear loading upon the Space Station Freedom 20 kHz power system
Author :
Leskovich, R. Thomas ; Hansen, Irving G.
Author_Institution :
Pennsylvania State Univ., Monaca, PA, USA
Abstract :
The Space Station Freedom power distribution system, which consists of dual redundant 20 kHz, 440 V RMS, single-phase power systems, is discussed. The effect of a typical space station nonlinear load on the measurement of RMS current and voltage at various points in the Space Station power system has been investigated using the Electromagnetic Transients Program (EMTP). The load current distortion at the user interface, its effect on the distribution system, and its relationship to power factor have been studied. Modeling results are compared to test data. The differences under nonlinear loading are evaluated and presented as a measure of distribution voltage distortion and current measurement accuracy
Keywords :
aerospace computing; distribution networks; harmonics; power system analysis computing; software packages; space vehicle power plants; transients; 20 kHz; 440 V; EMTP; Electromagnetic Transients Program; Space Station Freedom; distribution system; load current distortion; nonlinear load; power factor; power system analysis computing; space power; voltage distortion; Current measurement; Distortion measurement; EMTP; Electromagnetic measurements; Nonlinear distortion; Power system measurements; Power system modeling; Power system transients; Space stations; Voltage;
Conference_Titel :
Energy Conversion Engineering Conference, 1989. IECEC-89., Proceedings of the 24th Intersociety
Conference_Location :
Washington, DC
DOI :
10.1109/IECEC.1989.74520
