Wang Huanqing, Bai Wen, Zhao Xudong, Liu Peter Xiaoping
IEEE Trans Cybern. 2022 Jul;52(7):6959-6971. doi: 10.1109/TCYB.2020.3046316. Epub 2022 Jul 4.
In this article, finite-time-prescribed performance-based adaptive fuzzy control is considered for a class of strict-feedback systems in the presence of actuator faults and dynamic disturbances. To deal with the difficulties associated with the actuator faults and external disturbance, an adaptive fuzzy fault-tolerant control strategy is introduced. Different from the existing controller design methods, a modified performance function, which is called the finite-time performance function (FTPF), is presented. It is proved that the presented controller can ensure all the signals of the closed-loop system are bounded and the tracking error converges to a predetermined region in finite time. The effectiveness of the presented control scheme is verified through the simulation results.
本文针对一类存在执行器故障和动态干扰的严格反馈系统，研究了基于有限时间规定性能的自适应模糊控制。为解决与执行器故障和外部干扰相关的难题，引入了一种自适应模糊容错控制策略。与现有的控制器设计方法不同，提出了一种改进的性能函数，称为有限时间性能函数（FTPF）。证明了所提出的控制器能够确保闭环系统的所有信号有界，且跟踪误差在有限时间内收敛到预定区域。通过仿真结果验证了所提控制方案的有效性。
