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Adaptive Fault-Tolerant Neural Control for Large-scale Systems with Actuator Faults

Jianye Gong, Bin Jiang, and Qikun Shen*
International Journal of Control, Automation, and Systems, vol. 17, no. 6, pp.1421-1431, 2019

Abstract : The active adaptive fault-tolerant neural control problem is discussed for large-scale uncertain systems against actuator faults. The unknown interconnections among subsystems are assumed to be nonlinear, not traditional linear. A general actuator fault model is proposed, which integrates bias and gain time-varying faults. Then, based on Lyapunov stability theory, a novel fault diagnostic algorithm and accommodation scheme are proposed,where the assumptions in the existing works are removed and fault-tolerant controller singularity problem is avoided. Finally, simulation results of near space vehicle show the efficiency of the presented control approach.

Keyword : "Adaptive control, fault diagnosis, fault-tolerant control, neural control. "

 
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