Journal
IEEE TRANSACTIONS ON FUZZY SYSTEMS
Volume 26, Issue 3, Pages 1311-1323Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TFUZZ.2017.2718968
Keywords
Actuator failures; adaptive fuzzy control; fault-tolerant control (FTC); networked nonlinear systems; sliding-mode control (SMC)
Funding
- National Natural Science Foundation of China [61473096, 61273095]
- New Century Excellent Talents Program of the Ministry of Education of the People's Republic of China [NCET-13-0170]
- Natural Science Foundation of Zhejiang Province [LY16F020014]
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This paper investigates the robust control problem of nonlinear systems with unknown time-varying actuator faults over digital communication networks. In the study, a new adaptive sliding mode control (SMC) scheme is developed for the investigated nonlinear systems, where the unknown nonlinearity is approximated via the adaptive fuzzy mechanism in the presence of signal quantization. The proposed control law can compensate the time-varying faults and the quantization errors completely by injecting the quantizer parameter into the controller gain. Moreover, in this design, the adaptive fuzzy law is constructed via the quantized state information instead of using the exact original information. Under the proposed quantized SMC scheme, the closed-loop control systems are guaranteed to be asymptotically stable, and the reachability of the sliding surface can be ensured strictly. Finally, two examples are presented to show the effectiveness of the method.
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