针对在太空强干扰环境下工作的三轴稳定卫星姿态控制问题,将间接自适应模糊鲁棒控制应用于卫星的姿态稳定控制中,给出了实现方法。用自适应模糊控制器逼近被控对象的数学模型,并在控制量中加入鲁棒控制项用于抑制扰动,使系统具有更强的鲁棒性。针对挠性卫星设计了间接自适应模糊鲁棒控制器,推导了参数自适应律。仿真结果表明,该方法能够有效抑制扰动,且具有较好的动态与静态品质。
Considering the three-axis stabilized satellite working in the outer space with strong dis-turbances, the indirect adaptive fuzzy H∞ control is applied to the attitude stabilization control of the satellite, and the detailed design procedure of the fuzzy control system is presented. The adaptive fuzzy control is utilized to approximate the model of controlled object, and the H∞ controller is added to the system to resist the external disturbances. The parameter adaptive law is derived. Simulations results show the proposed control law can resist disturbance effectively and has better dynamic and static performances.