2001 · 52 citations · 12 references
EngineeringSystems EngineeringDynamical SystemsFault ToleranceFault-tolerant SystemsActuator ControlAdaptive ControlControl SystemsControl TheoryFault-tolerant ControlRobust ControlActuator Fault-tolerant ControlAdaptive Control Of Nonlinear SystemsAdaptive Control Of Uncertain SystemsAdaptive Fault-tolerant ControlFault-tolerant Nonlinear Control
A state feedback output tracking adaptive control scheme is developed for plants with actuator failures characterized by the failure pattern that some inputs are stuck at some unknown fixed values at unknown time instants. This scheme relaxes the conditions on the controlled plant for desired plant-model output matching in the presence of actuator failures. New controller parametrization and adaptive law are developed under less restrictive conditions. All closed-loop signals are bounded and the plant output tracks a given reference output asymptotically, despite the uncertainties in actuator failures and plant parameters. Simulation results verify the desired adaptive control system performance.
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