Robust Adaptive H∞ Fault-Tolerant Control for Uncertain Linear Systems against Actuator Failures
This paper is concerned with the robust adaptive H∞ fault-tolerant control problem for linear systems with the mismatched parameter uncertainties,input channel and external disturbances,and actuator faults including loss of effectiveness,outage and stuck.Without requiring any fault detection and isolation mechanism,a novel adaptation law with a rather simpler structure is employed to estimate the unknown controller parameters.Based on a notion of an adaptive H∞ performance index,the designed adaptive fault-tolerant controller can guarantee the disturbance attenuation and optimal H∞ performance.Furthermore,on the basis of Lyapunov stability theory,it is shown that the proposed fault-tolerant strategy guarantees that the closed-loop system is asymptotically stable in the presence of the mismatched parameter uncertainty,disturbance and actuator faults simultaneously.Finally,a rocket fairing structural-acoustic model is used to demonstrate the efficiency of the proposed fault-tolerant design approach.
Fault-tolerant control robust H∞ control mismatched parameter uncertainty indirect adaptive control asymptotically stable
Li-Bing Wu Zhi-Guo Zhang Da-Qing Zhang Gui-Zhi Li
The College of Sciences,University of Science and Technology Liaoning,Anshan,Liaoning,114051,P.R.Chi Department of Basic Education,Polytechnic Institute of Guidaojiaotong,Shenyang,Liaoning,110036,P.R.C The Department of Economics and Management,Yingkou Institute of Technology,Yingkou,Liaoning,115000,P
国际会议
长沙
英文
2847-2852
2014-05-31（万方平台首次上网日期，不代表论文的发表时间）