@inproceedings{oai:jaxa.repo.nii.ac.jp:00007494,
 author = {杉田, 昌行 and 船瀬, 龍 and 森, 治 and Sugita, Masayuki and Funase, Ryu and Mori, Osamu},
 book = {第17回アストロダイナミクスシンポジウム講演後刷り集　2007, Proceedings of 17th Workshop on JAXA Astrodynamics and Flight Mechanics},
 month = {Mar},
 note = {宇宙用機器は、トータル質量の軽減、コストの削減、先端ミッションへの貢献など様々な観点から、常に機能の高性能化と小型化が要求される。小惑星探査機はやぶさ(MUSES-C: Asteroid Sample-return Spacecraft)で大きな成果をあげたイオンエンジンを例に挙げると、より高い比推力を得るためにはより高電圧での駆動が必要である。しかし、電源を高電圧化した場合、電圧が加わる電子素子間の放電発生確率が高まるため、一般に大型化が必要になる。また、宇宙では対流熱伝達がないため、小型化しようとすると局所的に非常に高温になり、機器を小型化するのは難しい。機器を大型化せずにこれらの問題を解決する1つの手段として、本研究ではフッ素系不活性液体を用いた絶縁冷却システムを構築した。フッ素系不活性液体とは電気絶縁性や熱伝達率に優れている、化学的に安定な液体である。本研究では、まずフッ素系不活性液体の絶縁性を実験により検証した。また、システム同定実験により絶縁冷却システムのモデルを導出した。そして作成したモデルを用いて温度制御のための流量制御則を構築し、数値シミュレーションと実験の双方により絶縁冷却システムの冷却性能を検証した。, Miniaturization and high performance are always required for space equipments. To cite a case, for the Ion-propulsion engine which contributed to the asteroid sample return mission by 'Hayabusa (MUSES-C: Asteroid Sample-return Spacecraft)' spacecraft, it is required to drive at higher voltage in order to get higher specific impulse. However, if the operating voltage becomes higher, the probability of discharge between electronic devices rises and thus the equipment inevitably grows in size to keep sufficient gap between the devices. In addition, as there is no convectional heat transfer in space, the temperature locally becomes very high if the equipment is downsized. So, it can be said that miniaturization and high performance are generally contradictory requirements. In this research, a fluid loop insulation and cooling system was built as a means of realizing both miniaturization and high voltage. For the working fluid of the system, fluorinated inactive liquids were used which can provide high electrical insulation and thermal conductivity. In this paper, to begin with, the electrical insulation property of the fluorinated inactive liquids was verified by an experiment. Then the dynamics model of the constructed insulation and cooling system was derived by a system identification experiment. Finally, a control low for temperature control was constructed using the estimated model and cooling performance of the system was examined by both numerical simulations and experiments., 資料番号: AA0063718057},
 pages = {344--349},
 publisher = {宇宙航空研究開発機構宇宙科学研究本部, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS)},
 title = {Temperature control of high temperature and high voltage device by fluid loop insulation and cooling system using fluorinated inactive liquids},
 year = {2008}
}