Open AccessFault tolerant control of fixed wing uav based on adaptive method
Author(s) -
Jie Chen,
Jianguo Lin
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1846/1/012024
Subject(s) - control theory (sociology) , fault tolerance , actuator , adaptive control , offset (computer science) , controller (irrigation) , pid controller , control engineering , computer science , control system , engineering , control (management) , temperature control , artificial intelligence , distributed computing , electrical engineering , agronomy , biology , programming language
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.