An advanced array design based on the recently developed HS-601 oriented flatplate array is described. The advanced design incorporates the use of high-efficiency gallium arsenide on germanium dual-junction solar cells that have BOL (beginning-of-life) efficiencies of greater than 22%. Reflections off deployable flatplate shutters increase the sunlight concentration on the planar solar cell panels, resulting in a 30% increase in power from the solar cells. Each solar cell panel, 2.16*2.54 m2 in size, has a BOL output power of 1667 W at the operating temperature of 81 degrees C. The full-size array, consisting of two wings with three panels/wing, has a BOL output of 10.0 kW and a projected end-of-life (e.g.. 1*1015 e/cm2, 1 MeV) output of about 7.7 kW. This advanced solar power structure provides a novel approach for utilizing high-efficiency multibandgap solar cells in a retractable array configuration, thus providing higher efficiency and a more versatile operational design.


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    Title :

    Retractable planar space photovoltaic array


    Additional title:

    Einziehbares ebenes Photovoltaikgestell für die Raumfahrt


    Contributors:
    Ralph, E.L. (author) / Chung, M.A. (author)


    Publication date :

    1990


    Size :

    5 Seiten


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





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