It is shown that for large power spacecraft exceeding 10 KW user power, the distributed voltage must be a trade-off between mass of power system elements, transmission efficiency, plasma losses, component technology availability, and safety. The optimum voltage is 150 V. Simulation results indicate that the best electrical, mechanical, and thermal performances are available with an unregulated bus power system and the worst ones with the regulated bus concept, the sunlight regulated bus system data being very close to the latter concept. The substandard performance of the regulated bus voltage configuration is explainable by the fact that the simulation software is restricted to the power system platform simulation and does not take into account the important part of the active power distribution (voltage regulators on every user network) which is hidden in the user power profile. In spite of the contradictory results of the configuration evaluation, the regulated bus concept is advocated as power system configuration for the Space Station at 150 V + or - 10%.
Assessment of Space Station Power System
1986
210 pages
Report
Keine Angabe
Englisch
NTRS | 1984
|IEEE | 1984
|NTRS | 1984
|Tema Archiv | 1984
|NTRS | 1984
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