Zhao Nan-Nan, Ouyang Xin-Yu, Wu Li-Bing, Shi Feng-Rui
School of Electronic and Information Engineering, University of Science and Technology Liaoning, Anshan, Liaoning, 114051, PR China.
School of Science, University of Science and Technology Liaoning, Anshan, Liaoning, 114051, PR China.
ISA Trans. 2021 Feb;108:121-130. doi: 10.1016/j.isatra.2020.08.027. Epub 2020 Aug 22.
The problem of event-triggered prescribed performance control for a class of uncertain nonlinear systems with unknown control directions and faults is investigated. Compared with the existing methods, a new set of error transformation functions is defined for the first time. Although no approximate structure is adopted, prescribed performance control (PPC) and event triggered control (ETC) are realized simultaneously for the nonlinear system considered in this paper for the first time. The proposed control scheme can guarantee that all closed-loop signals are bounded, and the tracking error, as well as all state errors, converges within the adjustable constraint functions. Finally, two simulation experiments verify the effectiveness of the proposed algorithm.
研究了一类具有未知控制方向和故障的不确定非线性系统的事件触发规定性能控制问题。与现有方法相比，首次定义了一组新的误差变换函数。虽然未采用近似结构，但首次针对本文所考虑的非线性系统同时实现了规定性能控制（PPC）和事件触发控制（ETC）。所提出的控制方案能够保证所有闭环信号有界，并且跟踪误差以及所有状态误差在可调约束函数内收敛。最后，两个仿真实验验证了所提算法的有效性。
