The High-Voltage Technology Demonstration Satellite Horyu-2 is a nanosatellite (30 cm cubic shape, 7 kg) developed by the Kyushu Institute of Technology. It is known that high-voltage power generation above 200 V in low Earth orbit induces arcing. The main mission of Horyu-2 is to demonstrate various high-voltage technologies. The satellite was launched on 18 May 2012 to the sun-synchronous orbit at an altitude of 680 km. The satellite succeeded in generating 350 V of photovoltaic power via a specially designed solar array. Using the generated voltage, experiments on arc inception on various types of solar arrays were conducted. The solar arrays tested consisted of a conventional design and two new designs that aimed at preventing arc inception. They were connected to the negative end of a 350 V solar array circuit. A semiconductive cover glass coating was the most effective at preventing arcing. Covering the solar array with a transparent film was effective at low latitudes but it suffered arcs at higher latitudes near the polar region.


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    Title :

    Flight Results of Arcing Experiment Onboard High-Voltage Technology Demonstration Satellite Horyu-2


    Contributors:

    Published in:

    Publication date :

    2015-03-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





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