首页|Conceptual design and control method for a non-contact annular electromagnetic stabilized satellite platform
Conceptual design and control method for a non-contact annular electromagnetic stabilized satellite platform
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Disturbance-Free Payload(DFP)spacecraft can meet the requirements of ultra-high atti-tude pointing accuracy and stability for future space missions.However,as the main control actu-ators of DFP spacecraft,Linear Non-Contact Lorentz Actuators(LNCLAs)have control output problems with six-degree-of-freedom coupling and nonlinear effects,which will affect the attitude control performance of DFP spacecraft.To solve this problem,a novel concept for Non-Contact Annular Electromagnetic Stabilized Satellite Platform(NCAESSP)is proposed in this study.The concept is centered on replacing the LNCLAs with a non-contact annular electromagnetic actuator to solve the two problems mentioned above.Furthermore,for the different control requirements of the payload module and the support module of the NCAESSP,a high-precision attitude controller based on the robust model matching method and a dual quaternion-based adaptive sliding mode controller are proposed.Additionally,the simulation results verify the feasibility and effectiveness of the proposed approach.
Disturbance-free payloadRobust model matchingDual quaternionSliding mode controlCollision avoidance
He LIAO、Daixin WANG、Yuan REN、Weijie WANG
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Institute of Astronautics,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China
Department of Basic Course,Space Engineering University,Huairou District,Beijing 101416,China
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