JAXA Repository / AIREX 未来へ続く、宙(そら)への英知

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Other TitleThe effect of microwave irradiation on an imitation electrode of a solar cell
Author(jpn)池田 顕夫; Cho, Mengu; 久田 安正
Author(eng)Ikeda, Akio; Cho, Mengu; Hisada, Yasumasa
Author Affiliation(jpn)九州工業大学 工学部 電気工学科; 九州工業大学 工学部 電気工学科; 宇宙航空研究開発機構 総合技術研究本部 高度ミッション研究センター
Author Affiliation(eng)Kyushu Institute of Technology Department of Electrical Engineering, Faculty of Engineering; Kyushu Institute of Technology Department of Electrical Engineering, Faculty of Engineering; Japan Aerospace Exploration Agency (JAXA) Advanced Mission Research Center, Institute of Aerospace Technology
Issue Date2008-05
PublisherInstitute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS)
Publication title第27回宇宙エネルギーシンポジウム 平成19年度
The Twenty-seventh Space Energy Symposium
Start page64
End page67
Publication date2008-05
AbstractSSPS (Space Solar Power Station) transmits power to Ground by using 5.8 GHz microwave. This microwave has the possibility to cause discharge on solar arrays of SSPS by leaks and diffractions. Satellites that pass under SSPS also have the same possibility, because they are momentarily irradiated by microwave. Therefore, we carried out on experiment to irradiate solar cells with microwave, and analyze the discharge occurrence. We used 20 mm x 40 mm solar cells and 35 mm x 70 mm solar cells in the experiment, and used a microwave of 400 W. Discharges occurred only with the 20 mm x 40 mm solar cell, and the 35 mm x 70 mm solar cell had no discharges even for the 400 W irradiation. Points of discharge were concentrated on the inter-connector and the N electrode of the solar cell. So we concluded that the discharges involved the shape of the solar cell electrode. It seems that electric field concentrates on the electrode. Both the influence of the electric field concentration and the outgas in the experiment using real solar cell are closely related. Therefore we made samples that imitated the electrodes of a solar cell on a polyimide film. We then irradiated the samples with the microwave, but we could not confirm a discharge on the samples. For this reason, we considered that the discharges didn't generate by the influence of the electrode shapes. We considered the influence of the gas that was generated from the adhesive, and we made the sample that is nearest to a real solar cell. As a result, we irradiated the sample with the microwave, and we confirmed a discharge on the sample. For this reason, we considered that outgas from the adhesive and the concentration of the electric field by the electrode shapes is necessary.
Keywordsaerospace environment; solar array; solar power satellite; microwave power beaming; electric discharge; multipactor discharge; electric field; gas discharge; radio frequency; microwave emission; 航空宇宙環境; 太陽電池アレイ; 太陽発電衛星; マイクロ波パワービーミング; 放電; マルチパクター放電; 電場; ガス放電; 高周波; マイクロ波放射
Document TypeConference Paper
JAXA Categoryシンポジウム・研究会

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