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Space Systems Requirements and Issues: The Next Decade

This paper describes some of the more important space power technology issues, requirements and challenges as we enter the decade of the 1990's and provides an assessment of the impact of new component technology of the overall performance of space power systems. The paper emphasizes advanced component, subsystem and system technologies which will "make a difference" for the future in terms of the performance, reliability and survivability of next generation baseload and burst mode space power systems. The paper primarily addresses technology disciplines related to power sources (solar/nuclear and chemical), power convention, energy storage, power conditioning/distribution and control and waste heat acquisition, transport and rejection. For some of these technology disciplines, performance trends are developed which can be used as the basis for projecting future, advanced power system performance. Performance capabilities for several different types of space power systems for both baseload and burst mode applications are postulated based on evolving technology mid point designs which incorporate projections of advanced component capabilities.