• 作者： 楊憲東
• 作者服務機構： 國立成功大學航空太空研究所
• 中文摘要： 本文的目的在介紹地表及大氣觀測衛星（TAOSAT）所使用的控制系統及控制策略。民國81年初國科會太空計畫室自國內遴選了30位學者專家組成第零期太空科技人員培訓班，並從81年2月10日起接受美國約翰霍浦金斯大學應用物理實驗室為期9個星期的密集衛星科技訓練。TAOSAT即是在此訓練課程中所設計出來的衛星。TAOSAT採用三軸式姿態控制的方法，以scanwheel儲存並控制俯仰角動量，並輔以磁扭矩系統（ magnetic torque system）作為滾轉及偏航方向的姿態控制手段。當scanwheel損壞時，磁扭矩系統可接替其功能，藉由與地球磁場的交互作用，可將衛星從漫遊的未知姿態恢復到完全可控的姿態。電腦模擬的結果證實TAOSAT姿態控制的可行性及優越性。
• 英文摘要： In this paper we describe the control system and control strategy used in Terrestrial AtmosphereObserving Satellite (TAOSAT). TAOSAT was conceptually designed at Applied Physic Labratory of JohnsHopkins University by a space training group constituted by 28 scholars from the Republic of China.TAOSAT adopts a three-axis active control approach by expoiting scanwheel as the main actuatorcontrolling satellite attitude motion. An auxiliary magnetic torquing system is incorporated with thescanwheel to provide close-loop control in the roll/yaw directions by using three electromagnets to torquethe vehicle against the Earth's magnetic field, which is real-time measured by three magnetometers installedin the satellite. In the case of scanwheel failure, the control strategy proposed here can exhibit a three-axis fully magnetic control function to recover the vehicle from any tumbling state. Computer simulationhas been done to verify the feasibility and effectiveness of the control strategy proposed here.
• 中文關鍵字： attitude control; scanwheel; TAOSAT; magnetic coil; magnetometer
• 英文關鍵字： --