摘要
Based on satisfactory control strategy,a new method for robust passive fault tolerant controller is proposed for a class of uncertain discrete-time systems subject to actuator faults.The state-feedback gain matrix is calculated by linear matrix inequality(LMI)technique.The designed controller guarantees that the closed-loop system meets the pre-specified consistent constraints on circular pole index and steady-state variance index simultaneously for normal case and possible actuator fault case.The consistency of the performance indices is discussed.Furthermore,with the mentioned indices constraints,a solution is obtained by convex optimal technique for the robust satisfactory fault-tolerant controller with optimal control-cost.
Based on satisfactory control strategy, a new method for robust passive fault tolerant controller is proposed for a class of uncertain discrete-time systems subject to actuator faults. The state-feedback gain matrix is calculated by linear matrix inequality （LMI） technique. The designed controller guarantees that the closed-loop system meets the pre-speeified consistent constraints on circular pole index and steady-state variance index simultaneously for normal case and possible actuator fault case. The consistency of the performance indices is discussed. Furthermore, with the mentioned indices constraints, a solution is obtained by convex optimal technique for the robust satisfactory fault-tolerant controller with optimal control-cost.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2008年第5期921-926,共6页
Chinese Journal of Scientific Instrument
基金
Supported partly by the National Natural Science Foundation of China(60574082)
the China Postdoctoral Science Foundation(20070411178)
the Research Foundation of DML-HIT(HGDML-0502)
关键词
控制器
设计方案
不确定性
误差
机械仪器
fault tolerance
consistency
performance index
pole assignment
variance
state feedback
uncertain dynamic system
