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针对反作用飞轮安装存在偏差的过驱动航天器姿态跟踪问题,提出一种有限时间姿态补偿控制策略.通过设计自适应滑模控制器保证实现对不确定性转动惯量与外部干扰的鲁棒控制,同时实现对飞轮安装偏差的补偿控制,并应用Lyapunov稳定性理论证明了该控制器能够在有限时间内实现姿态跟踪控制.最后,将该控制器应用于某型航天器的姿态跟踪控制,仿真结果验证了所提出方法的有效性.
In order to solve the attitude tracking problem of overdrive spacecraft with biased reactive flywheel mounting, a finite time attitude compensation control strategy is proposed. By designing an adaptive sliding mode controller, robust control of uncertain moment of inertia and external disturbances is guaranteed, meanwhile, The compensation control of the flywheel mounting deviation is realized, and the Lyapunov stability theory is used to prove that the controller can achieve the attitude tracking control in a limited time.Finally, the controller is applied to attitude tracking control of a spacecraft and the simulation results are verified The effectiveness of the proposed method.