Dynamics and Fuzzy Control for Short Tethered Satellite
Dynamic and control for short tethered satellite in short distance space operation is studied. The dynamic model of the tethered satellite is established. The deploy method for short tethered satellite is discussed. The dynamic characters of the system in the developing phase are analyzed. The subsatellite could be deployed to directions other than the vertical direction with an initial velocity. Fuzzy control scheme is designed considering the precision of the tether direction and the output character of the thrusters. The fuzzy control system can keep the sub-satellite in the ideal direction. The angles of the tether are within 0.5deg from the ideal values and angular velocity is within 0.03deg/s during the developing period. Thrusters do not need to work frequently. Numerical simulation testified the efficiency of the system.
tetherd satellite dynamic model developing phase fuzzy control
Liu Yingying Zhou Jun
Institute of Precision Guidance and Control Northwestern Polytechnical University Xian,China
国际会议
上海
英文
1582-1586
2009-11-20（万方平台首次上网日期，不代表论文的发表时间）