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Fault tolerant control system design for linear time-delay systems with multi-indices constraints
WANG Shu-bin1,2,WANG Zhi-quan1
(1. Department of Automation, Nanjing University of Science and Technology, Nanjing 210094, China ;2. College of Information and Control Engineering in China University of Petroleum, Dongying 257061, China)
Abstract:
The problem of reliable system design for linear time-delay systems with circular pole index,H-infinity constraints was discussed. A more practical and general model of actuator failures was adopted. Based on linear matrix inequality approach ,the consistency theory on circular pole index and H-infinity constraints was set up, and the ranges of consistent indices were analyzed in detail. Furthermore, the effective controller design method for systems with constrains of consistent indices was provided. The simulation results show that the design method is effective and can guarantee the dynamic performance of the system.
Key words:  fault tolerant control  actuator fault  consistency  linear time-delay singular systems  linear matrix inequality