【摘要】 研究了一种用李亚普诺夫方法和模糊控制理论实现微小卫星姿态磁控制的方法。通过构造李亚普诺夫函数给出切变流形函数,获得了一开关控制,并从理论上证明了系统的收敛性。用模糊控制法消除常规开关控制固有的抖振,给出了模糊控制律。理论分析和仿真结果表明,该姿态磁控制方法简单、姿态精度高、鲁棒性强,可用于微小卫星的姿态磁控制。更多还原

【Abstract】 A magnetic attitude control law for microsatellite was studied using Lyapunov function and fuzzy control in this paper.The sliding module function was educed through constructing a Lyapunov function that gave a sliding function,and a switch control was gained.The convergence of the system was proved.The sliding module vibration of the switch control was eliminated using fuzzy control,and the fuzzy control law was given.The theoretical analysis and simulation results showed that the law was simple,which had advantages of high attitude precision and good robustness.The law could be used in the magnetic attitude control for microsatellte.更多还原