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

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title真空環境下での高強度マイクロ波と宇宙機太陽電池アレイ表面の干渉相互作用に関する基礎的検討
Other TitlePreliminary study on interaction between high intensity microwave and solar array surfaces in vacuum
Author(jpn)加世堂 康平; 細田 聡史; 豊田 和弘; Cho, Mengu; 久田 安正
Author(eng)Kasedo, Kohei; Hosoda, Satoshi; Toyoda, Kazuhiro; 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; 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
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; 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
Issue Date2006-06
PublisherInstitute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS)
宇宙航空研究開発機構宇宙科学研究本部
Publication title第25回宇宙エネルギーシンポジウム 平成17年度
The Twenty-fifth Space Energy Symposium March 10, 2006
Start page31
End page35
Publication date2006-06
Languagejpn
AbstractSpace Solar Power System (SSPS) transfers enormous amount of electrical energy of microwave. As the microwave may diffract to solar array surface, there is concern of multifactor discharge caused by the microwave. There has been no experiment on interaction between high intensity microwave and solar array. The verification experiment is essential for Space Solar Power System to become a reality. We examined the interaction between solar array surface and microwave in a vacuum chamber. We investigated a discharge phenomenon on the solar array surface that receives RF irradiation with 400 W maximum power and 5.8 GHz frequency generated by a magnetron. We observed discharge on solar array depending on the microwave strength and vacuum condition. The discharge occurred mostly at N-electrodes of solar cells that acted as an antenna as good as a dipole antenna. We calculated the distribution of electric field inside the chamber by Finite Difference Time Domain (FDTD) method. The result of numerical simulation shows that macroscopic electric field is not high enough to cause multifactor discharges. Future works involve more precise estimation of local electric field and gas pressure near the N-electrodes of solar cells.
Keywordssolar array; ultrahigh vacuum; aerospace environment; electromagnetic interaction; spacecraft charging; solar energy conversion; microwave transmission; microwave generator; multipactor discharge; electric field strength; 太陽電池アレイ; 超高真空; 航空宇宙環境; 電磁相互作用; 宇宙機帯電; 太陽エネルギー変換; マイクロ波伝搬; マイクロ波発生装置; マルチパクター放電; 電界強度
Document TypeConference Paper
JAXA Categoryシンポジウム・研究会
SHI-NOAA0049121007
URIhttps://repository.exst.jaxa.jp/dspace/handle/a-is/28271


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