Design and optimization of a self-deploying single axis tracking PV array

Details Design and optimization of a self-deploying single axis tracking PV array Design and optimization of a self-deploying single axis tracking PV array

Mar 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992svti.rept.....c&link_type=abstract

Final Report Sverdrup Technology, Inc., Brook Park, OH.

Computer Science

Lunar Based Equipment, Self Erecting Devices, Solar Arrays, Solar Blankets, Solar Generators, Structural Design, Tracking (Position), Amorphous Silicon, Gallium Arsenides, Germanium, Mars Surface, Optimization

Scientific paper

This study was performed in order to design a tracking photovoltaic (PV) array and optimize the design for maximum specific power. The design considerations were minimal deployment time, high reliability, and small stowage volume. The array design was self-deployable, from a compact stowage configuration, using a passive pressurized gas deployment mechanism. The array structural components consist of a combination of beams, columns, and cables used to deploy and orient a flexible PV blanket. Each structural component of the design was analyzed to determine the size necessary to withstand the various forces to which it would be subjected. An optimization was performed to determine the array dimensions and blanket geometry which produce the maximum specific power. The optimization was performed for both lunar and Martian environments with 4 types of PV blankets (silicon, GaAs/Ge, GaAs CLEFT, and amorphous silicon). For the lunar environment, the amorphous silicon array produced the highest specific power, whereas, for Mars the GaAs CLEFT array produced the highest specific power. A comparison was made to a fixed PV tent array of similar design. The tracking array produced a higher specific power with all types of the PV blankets examined except amorphous silicon at both locations.

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