Adaptive fault‐tolerant control of switched nonlinear systems based on tuning function method
Yaxin Li, Li‐Bing Wu, Yuhan Hu, Nannan Zhao, Jin Nie
Abstract
Abstract This paper solves the problem of adaptive fault‐tolerant control of uncertain switched nonlinear systems with unknown parameters and actuator failures. Based on the multi‐Lyapunov function method, a novel adaptive switched controller with tuning function is designed using the backstepping procedure. Meanwhile, a switched fault‐tolerant adaptation mechanism is also given to compensate the fault efficiency. Furthermore, it is certificated that all the signals of the closed‐loop system are uniformly bounded and the tracking error restrain to a small neighbor. Finally, the simulation results verify the feasibility of the proposed method.
Topics & Concepts
Control theory (sociology)BacksteppingFault toleranceTracking errorLyapunov functionNonlinear systemBounded functionActuatorController (irrigation)Computer scienceFault (geology)Function (biology)Adaptive controlControl engineeringControl (management)EngineeringMathematicsArtificial intelligenceMathematical analysisAgronomyDistributed computingGeologySeismologyBiologyQuantum mechanicsPhysicsEvolutionary biologyAdaptive Control of Nonlinear SystemsFault Detection and Control SystemsStability and Control of Uncertain Systems