PROBLEM TO BE SOLVED: To eliminate the disadvantage of an artificial satellite, specifically, because of the large possibility of a solar battery paddle receiving atmospheric pressure resistance, the effect of orbit altitude reduction is large on the satellite having a large solar battery paddle, and many propellants are necessary to hold the orbit altitude, causing a satellite weight increase.SOLUTION: When a power balance is established within time less than an orbit half round, a solar battery paddle is subjected to tracking control/hold control at a predetermined orbit position establishing the power balance, and coupled by through reverse rotation. When it is necessary to generate power equal to or more than the orbit half round, and when it is not necessary to always generate power by setting the solar battery paddle oppositely to the sun during sunshine, the solar battery paddle is subjected to tracking control/hold control at an orbit position according to necessary power generation time, and coupled by through forward rotation control. Other than this, tracking control/hold control is switched at a boundary between sunshine and shade of the earth to execute through forward rotation control. In the hold control, the solar battery paddle is controlled at a rotational angle where the effect of atmospheric pressure is smallest.SELECTED DRAWING: Figure 3
【課題】 人工衛星は、太陽電池パドルが大気抵抗を受ける割合が大きいため、大型の太陽電池パドルを搭載した衛星は軌道高度低下の影響が大きく、軌道高度を保持するために多くの推進薬を搭載する必要があり、衛星重量増加の一因となっていた。【解決手段】 軌道半周回未満の時間で電力収支が成立する場合は、電力収支を成立する所定の軌道位置で太陽電池パドルを追尾制御・ホールド制御し、スルー逆回転で結合させる。電力発生を軌道半周回以上発生させる必要がある場合は、日照中常に太陽電池パドルを太陽と正対させ電力を発生する必要がないとき、必要な電力発生時間に応じた軌道位置で太陽電池パドルを追尾制御・ホールド制御し、スルー順回転制御で結合する。それ以外は地球の日照日陰の境界にて追尾制御・ホールド制御を切替え、スルー順回転制御を実施する。またホールド制御では、大気抵抗の影響が最も小さくなる回転角で太陽電池パドルを制御する。【選択図】 図3
SOLAR BATTERY PADDLE CONTROLLER
太陽電池パドル制御装置
2016-09-05
Patent
Electronic Resource
Japanese
IPC: | B64G Raumfahrt , COSMONAUTICS |
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