Adaptive Fault Tolerant Controller Design for Linear Singularly Perturbed Systems

An active adaptive fault tolerant controller design method for a linear singularly perturbed system with actuator faults is presented. It is founded on the adaptive fault estimation and Youla controller parameterization. The controller is adapted with the estimated fault, working in such way that the reconfigurable parameterized matrix in the designed Youla controller. The theory of R-controllability and R-observability is used to deal with the small perturbation parameters in singularly perturbed systems. Since actuators suffer from faults, the proposed controller can track the fault parameters adaptively. Finally, a numerical example shows the effectiveness and feasibility of the proposed method.