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Indexed by:会议论文

Date of Publication:2018-01-01

Included Journals:CPCI-S、EI

Volume:165

Page Number:861-875

Abstract:The integrated attitude control approach of a solar power satellite using electric propulsion and moving mass system is investigated in the paper. The coupling equations of the attitude motion and the moving mass motion are firstly established in the presence of environmental disturbances, such as the gravity gradient and the solar radiation pressure. By changing the location of the center of mass, the torque due to the solar radiation pressure can be utilized in the attitude control. The integrated control system is then designed in three steps. Firstly, a robust attitude controller, to perform attitude maneuvers of SPS, is proposed based on optimal LQR approach. Then the allocation algorithm for the electric propulsion and moving mass system is developed. A PD tracking controller, that drives the moving masses to generate the assigned SRP torque, is proposed. The moving mass system is investigated for the rolling-yaw motion and the pitching motion separately. Preliminary simulation results are obtained and the results demonstrate that the proposed integrated attitude control strategy with the moving mass system is more feasible and efficient.