Fault-tolerant control systems design via subdivision of parameter region
Xiaozheng JIN
Guanghong YANG
摘要：This paper presents a linear matrix inequality (LMI) approach to solve the fault-tolerant control (FTC) problem of actuator faults. The range of actuator faults is considered as a parameter region and subdivided into several subregions to achieve a certain desired performance specification. Based on the integral quadratic constraint (IQC) approach, a passive fault-tolerant controller for the whole fault region and multiple fault-tolerant controllers for each fault subregion are designed for guaranteeing stability and improving performance of the FTC system, respectively. According to the estimation of parameters by FDI process, the corresponding subregion controller is chosen for the stability and optimal performance of closed-loop systems when the fault occurs. The case of incorrect estimation is also considered by comparing the performance index between the switched controller and the passive fault-tolerant controller. The proposed design technique is finally evaluated in the light of a simulation example.
机标关键词：parameter regionviasystems designperformance indexcontrollerfaultintegral quadratic constraintlinear matrix inequality
资助基金：This work was partly supported by the Program for New Century Excellent Talents in University(NCET-04-0283)the Funds for Creative Research Groups of China(60521003)Program for Changjiang Scholars and Innovative Research Team in University(IRT0421)the State Key Program of National Natural Science of China(60534010)the Funds of National Science of China(60674021)the Funds of Phi) program of MOE,China(20060145019)the 111 Project(B08015)
论文发表日期：2009-01-01
在线出版日期：2025-08-15（本平台首次上网日期，不代表文献的发表时间）
页数：7( 127-133 )
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