A new design method of fuzzy sliding mode controller

被引：0
|
作者：
Kang Z. [1 ,2 ]
Jia L.-M. [1 ,2 ]
Qin Y. [1 ,2 ]
机构：
[1] State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, Beijing
[2] School of Traffic and Transportation, Beijing Jiaotong University, Beijing
来源：
Kongzhi yu Juece/Control and Decision | 2024年 / 39卷 / 06期
关键词：
exponential reaching law; external disturbance; fuzzy system; global fast terminal sliding mode control; sliding mode control; sliding mode surface;
D O I：
10.13195/j.kzyjc.2022.1771
中图分类号：
学科分类号：
摘要：
A new design method of a fuzzy sliding mode controller is proposed for a class of uncertain systems with large and unobservable external disturbances. Firstly, based on the principle of fuzzy sliding mode control, global fast terminal sliding mode control is introduced to make the system reach a steady state in a limited time. Then an adaptive disturbance estimation term compensated by the absolute value of the derivative of the Lyapunov function is constructed to conduct an accurate estimation of external disturbances. Furthermore, a double-layer hierarchical and exponential reaching law global fast terminal fuzzy sliding mode controller is proposed. The dynamic quality of the sliding mode surface is adjusted by the exponential reaching law. The controller can quickly converge to a stable state and effectively eliminate the chattering of the controller. Finally, the effectiveness of the proposed method is verified by a simulation example. © 2024 Northeast University. All rights reserved.
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页码：1909 / 1917
页数：8
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