Regular Papers
International Journal of Control, Automation and Systems 2011; 9(3): 442-451
Published online June 4, 2011
https://doi.org/10.1007/s12555-011-0303-3
© The International Journal of Control, Automation, and Systems
Fault Estimation and Accommodation for Switched Systems with Time-varying Delay
This paper considers the problem of fault estimation and accommodation for a class of switched systems with time-varying delay. An adaptive fault estimation algorithm is proposed to estimate the fault, moreover, constant or time-varying fault can be estimated. Meanwhile, a delay-dependent criteria is obtained with the purpose of reducing the conservatism of the fault estimation algorithm design. On the basis of fault estimation, an observer-based fault tolerant controller is designed to guarantee the stability of the closed-loop system. Additionally, simulation results are presented to il-lustrate the efficiency of the proposed results.
Keywords Accommodation, fault estimation, switched systems, time-varying delay.
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Regular Papers
International Journal of Control, Automation and Systems 2011; 9(3): 442-451
Published online June 1, 2011 https://doi.org/10.1007/s12555-011-0303-3
Copyright © The International Journal of Control, Automation, and Systems.
Fault Estimation and Accommodation for Switched Systems with Time-varying Delay
Dongsheng Du, Bin Jiang*, and Peng Shi
Nanjing University of Aeronautics and Astronautics, China
Abstract
This paper considers the problem of fault estimation and accommodation for a class of switched systems with time-varying delay. An adaptive fault estimation algorithm is proposed to estimate the fault, moreover, constant or time-varying fault can be estimated. Meanwhile, a delay-dependent criteria is obtained with the purpose of reducing the conservatism of the fault estimation algorithm design. On the basis of fault estimation, an observer-based fault tolerant controller is designed to guarantee the stability of the closed-loop system. Additionally, simulation results are presented to il-lustrate the efficiency of the proposed results.
Keywords: Accommodation, fault estimation, switched systems, time-varying delay.
Vol. 23, No. 3, pp. 683~972
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