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.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
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)