Zhao Nan-Nan, Zhang Ai-Min, Ouyang Xin-Yu, Wu Li-Bing, Xu Hai-Bo
School of Electronic and Information Engineering, University of Science and Technology Liaoning, Anshan, Liaoning, 114051, PR China.
Faw-Volkswagen Automotive Co., Ltd, Changchun, Jilin, 130011, PR China.
ISA Trans. 2023 Jan;132:258-266. doi: 10.1016/j.isatra.2022.06.013. Epub 2022 Jun 15.
This paper is devoted to the prescribed performance control (PPC) for a class of strict-feedback nonlinear systems with input saturation constraints. With the help of an improved tuning function, the system can achieve the desired steady-state and transient performance in the pre-designed time. A new error transformation function is introduced, which has inherent robustness, so it does not need to use any approximation technique or calculate the analytical derivative. Compared with the relevant results, the proposed scheme has the same lower complexity, but better transient and steady-state performance, although there exists uncertain nonlinearity and uncertain disturbances in the system. Finally, the correctness of the above algorithm is verified by simulation experiments.
本文致力于研究一类具有输入饱和约束的严格反馈非线性系统的规定性能控制（PPC）。借助改进的调节函数，系统能够在预先设计的时间内实现期望的稳态和瞬态性能。引入了一种新的误差变换函数，该函数具有内在的鲁棒性，因此无需使用任何逼近技术或计算解析导数。与相关结果相比，尽管系统中存在不确定非线性和不确定干扰，但所提出的方案具有相同的低复杂度，同时具有更好的瞬态和稳态性能。最后，通过仿真实验验证了上述算法的正确性。
