Command Filtered Fixed-Time Control for Nonlinear Multi-Agent Systems with Actuator and Sensor Faults
Guowei Dong, Ziyang Chen · 2023
In this article, the command filtered fixed-time fault-tolerant control scheme based on fuzzy logic systems for nonlinear non-strict feedback multi-agent systems is studied. The considered MASs have unknown nonlinear functions, actuator and sensor faults. Firstly, the sensor faults and unknown nonlinear functions are solved by using fuzzy logic systems. Then, based on the properties of the Nussbaum function, the problems of actuator faults and unknown control directions are addressed. In the design process, combining with command filtered and backstepping methods, an adaptive fuzzy fixed-time fault-tolerant controller is designed, which avoids the problems of “singularity” and “explosion of complexity”. Based on Lyapunov stability theory, it is proved that the controller can make all signals in the closed-loop system synchronized within fixed time. Finally, a numerical simulation is presented to certify the effectiveness of the proposed control algorithm.