Enhanced fractional order sliding mode control for a class of fractional order uncertain systems with multiple mismatched disturbances

被引：22
|
作者：
Zheng, Weijia [1 ]
Chen, YangQuan [2 ]
Wang, Xiaohong [3 ]
Chen, Yong [1 ]
Lin, Meijin [1 ]
机构：
[1] Foshan Univ, Sch Mechatron Engn & Automat, 33 Guangyun Rd, Foshan, Peoples R China
[2] Univ Calif Merced, Sch Engn, 5200 North Lake Rd, Merced, CA USA
[3] South China Univ Technol, Sch Automat Sci & Engn, 381 Wushan Rd, Guangzhou, Peoples R China
来源：
ISA TRANSACTIONS | 2023年 / 133卷
基金：
中国国家自然科学基金;
关键词：
Fractional order sliding mode control; (FOSMC); Disturbance observer (DO); Extended state observer (ESO); Input saturation; OBSERVER; DESIGN;
D O I：
10.1016/j.isatra.2022.07.002
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
To improve the control performance of the fractional order uncertain systems with multiple mis-matched disturbances, an enhanced fractional order sliding mode control (FOSMC) method is de-veloped in this paper. The multiple disturbances and uncertainties are estimated by the finite-time disturbance observers (FTDO) and a fractional order extended state observer (FOESO), respectively. A fractional order switching law is designed to provide a fast convergence mode for the system states. Then a novel FOSMC law is developed by incorporating the feedforward compensation, the fractional order switching law, and the auxiliary state for input saturation. The proposed method is applied to numerical examples and to a motor speed control problem. The effectiveness of the proposed method is demonstrated by the performance comparisons with some existing control methods.(c) 2022 ISA. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：147 / 159
页数：13
相关论文
共 50 条
12345