Title :
Simulation and dynamic performance of a 20-kHz spacecraft power system
Author :
Wasynczuk, O. ; Krause, P.C.
Author_Institution :
Sch. of Electr. Eng., Purdue Univ., W. Lafayette, IN, USA
Abstract :
A candidate 20-kHz spacecraft power system which includes a series-parallel combination of four Mapham inverters connected to several types of loads is described. A computer simulation of the power system is used to illustrate its steady-state and dynamic performance on an end-to-end basis. Comparisons with measured data are made. It is shown that significant distortion of the 20-kHz bus voltage can occur due to the switching of the load converters. This distortion can be reduced by including a shunt-connected parallel resonant filter on the 20-kHz side of the load converter. It is also shown that the distortion can be reduced by using a pulse-density-modulated switching strategy
Keywords :
aerospace computing; aerospace simulation; digital simulation; electric distortion; invertors; space vehicle power plants; 20 kHz; Mapham inverters; aerospace simulation; computer simulation; distortion; dynamic performance; pulse-density-modulated switching strategy; series-parallel combination; shunt-connected parallel resonant filter; spacecraft power system; steady state performance; Computational modeling; Computer simulation; Distortion measurement; Inverters; Power system dynamics; Power system measurements; Power system simulation; Space vehicles; Steady-state; Voltage;
Conference_Titel :
Aerospace and Electronics Conference, 1990. NAECON 1990., Proceedings of the IEEE 1990 National
Conference_Location :
Dayton, OH
DOI :
10.1109/NAECON.1990.112794
