摘要
文中确定了一个切换函数和控制律,设计了一个针对近圆轨道无扰动理想状态下航天器相对运动的滑模控制器,使实际状态与期望状态偏差达到或接近于0。切换函数和控制律的稳定性的证明利用了Lyapunov函数。最后通过Matlab仿真实验验证了该滑模控制器的有效性。
This paper determines a switching function and a control law, and according to the relative motion dynamics between spacecrafts in a near-circular orbit without disturbance, a sliding mode controller is designed to drive the deviation of the actual and expected state to reach or close to zero. Besides, the stability of the switching function and the control law is proved by using the Lyapunov function. Finally, the effectiveness of the sliding mode controller is verified by Matlab simulation.
出处
《电子设计工程》
2017年第1期93-96,共4页
Electronic Design Engineering
基金
国家自然科学基金(61203122)
辽宁省自然科学基金(2013020023)
关键词
滑模控制
相对运动
航天器
空间交会
sliding mode control
relative motion
spacecraft
space rendezvous
