FDI Design for Uncertain Nonlinear Systems with Both Actuator and Sensor Faults

摘要: This paper considers the problems of simultaneous actuator and sensor fault detection isolation FDI for a class uncertain Lipschitz nonlinear systems when observer matching condition is not satisfied. An augmented vector proposed to construct an system that contains consisting both faults original system. auxiliary output constructed satisfy condition, high-gain sliding mode designed approximately estimate vector. adaptive robust developed as detector detect simultaneously. Then, multi-observers are attain purpose. Finally, numerical simulation given show effectiveness methods.