Fault tolerant control of fixed wing uav based on adaptive method

Abstract

with the rapid development of fixed-wing uav technology, the requirements for precision and fault tolerance are getting higher and higher. However, the control methods commonly used at present have shown the shortcomings in accuracy and fault tolerance. Especially when there is unknown interference in the controlled object, the commonly used control method such as PID control is far from the desired effect, and the adaptive control just can make up for this shortcoming. Adaptive control can automatically adjust the controller parameters or control laws in the control system according to the output of the system. The main content of this chapter is to design an adaptive law to directly estimate controller parameters in the case of partial actuator failure and certain disturbance, so as to construct an adaptive closed-loop system controller, which can compensate actuator failure failure and offset system disturbance, and ensure the asymptotic stability of the closed-loop system.