TS模型和H_∞观测器在卫星故障诊断中的应用  

Fault diagnosis of Takagi-Sugeno fuzzy systems using H_∞ observers in satellite attitude control

作　　者：王宇雷[1] 李传江[1] 马广富[1] 

机构地区：[1]哈尔滨工业大学控制科学与工程系,哈尔滨150001

出　　处：《哈尔滨工业大学学报》2010年第9期1345-1350,共6页Journal of Harbin Institute of Technology

基　　金：国家自然科学基金(60774062);中国博士后科学基金资助(20070420858)

摘　　要：针对卫星姿态控制系统中的陀螺故障,分别在先验变量已知和未知两种情况下设计了基于TS模糊模型的H∞最优故障观测器,并证明了两种情况下H∞最优故障观测器的可行性.最后通过数学仿真验证所提出的故障诊断方法的有效性,并对两种H∞故障观测器的性能和实用性进行了综合比对.This article describes gyro fault diagnosis architecture in satellite attitude control systems and designs two H∞ optimal fault observers by dint of Takagi-Sugeno （TS） fuzzy model in the case that the premise variables are known or not. Sufficient conditions for the existence of the two H∞ optimal fault observers are derived respectively. Mathematical simulation is carried out to validate the effectiveness of the fault diagnosis method. Performance and practicability properties of the H∞ fault observers are analyzed synthetically.

关 键 词：卫星姿态控制系统 故障诊断 TS模糊模型 H∞最优故障观测器 

分 类 号：V448.22[航空宇航科学与技术—飞行器设计]