低地球軌道等離子體環(huán)境引起的高壓太陽
電池陣電弧放電現(xiàn)象的研究

低地球軌道等離子體環(huán)境引起的高壓太陽電池陣電弧放電現(xiàn)象的研究

摘要: 把高壓太陽電池陣放入低地球軌道中就會發(fā)生電弧放電,會造成航天器表面退化、電磁干擾、PN結(jié)破壞和其它負作用。文章先介紹了電弧放電的理論觀點,包括Park和Hastings的假說以及Cho和Hastings的理論擴展，對放電起因、過程及研究現(xiàn)狀進行了分析。然后給出幾個典型的飛行實驗及地面模擬實驗的結(jié)果，證實了高壓太陽電池陣在等離子體環(huán)境中電弧的產(chǎn)生，并發(fā)現(xiàn)偏置電壓與高壓太陽電池陣的放電率之間有密切的關(guān)系。文章最后介紹了在實驗室研究過的6種減緩電弧放電的方法，并對其優(yōu)缺點進行簡單討論。

Abstract: When a solar array of high voltage is put in low earth orbit (LEO), an arc will be sparked, causing surface degradation, electromagnetic interference and other undesirable side-effects. The mechanism of arcing is discussed, including two theoretical hypotheses and a modified mechanism by Cho and Hastings in terms of the causes, processes and research state-of-the-art. The results of some typical flight experiments and ground simulation experiments are given to show that the arc occurs in LEO plasma environment, and the arc rate has obvious connections with bias voltage. Finally, the advantages and disadvantages of the six methods to mitigate against arcing are discussed.