挠性卫星的自适应模糊滑模控制  

The Adaptive Fuzzy Sliding Mode Control for Flexible Satellite

作　　者：管萍[1] 陈家斌[1] 

机构地区：[1]北京理工大学自动控制系,北京100081

出　　处：《航天控制》2004年第4期62-67,共6页Aerospace Control

基　　金：国防预研基金资助项目 (5 14 0 90 80 2 0 )

摘　　要：将自适应模糊滑模控制应用于挠性卫星的姿态稳定控制中 ,给出了详尽的实现方法。用一个自适应模糊控制器逼近滑模控制中的等效控制 ,推导了规则参数调整的自适应率 ,确定不连续控制以保证闭环控制系统的稳定性 ,用另一个模糊控制器光滑不连续控制以抑制抖振。仿真结果表明 ,该方法实现了较高精度的卫星姿态控制。In this paper,the adaptive fuzzy s li ding mode control is applied to the attitude stabilization of flexible satellite ,and the detailed design procedure of the fuzzy sliding mode control system is p resented. The adaptive fuzzy control is utilized to approach the equivalent cont rol of sliding mode control,then the adaptive law is derived. The discontinuous control, which guarantees the stability of control system, is developed. Also in order to attenuate the chattering phenomena, another fuzzy controller is employ ed to smooth the discontinuous control.Simulation results show that precise atti tude control is accomplished based on the proposed method.

关 键 词：自适应模糊控制 滑模控制 姿态控制 挠性卫星 

分 类 号：TP273.4[自动化与计算机技术—检测技术与自动化装置]