Optimization technique for energy mass characteristics of the EPS of a geostationary spacecraft

Authors: Kozlov R. V., Bukreev V. G., Lelekov A. T.

Annotation: This article determines a methodology to maximize a specific power of the electrical power system of a geostationary spacecraft, using the EPS simulation model. A typical (for GEO spacecraft) fully-regulated EPS structure is considered. The advantages of using the full-bridge quasi-resonant converters with galvanic isolation are considered. The results of the energy efficiency estimation of power converters at various ranges of input voltages, as well as the criteria and conditions for calculating the positive energy budget of a GEO spacecraft are presented. The application of the EPS simulation model is shown and the results of optimization of the proposed EPS energy and mass characteristics for 6 and 13 kW payloads are described.

Keywords: spacecraft electrical power system, optimization of energy and mass characteristics, simulation model, specific power of the spacecraft electrical power system