Stability analysis of linear/nonlinear switching active disturb-ance rejection control based MIMO continuous systems

• 作者: WAN Hui QI Xiaohui LI Jie
• 来源期刊: 系统工程与电子技术（英文版）
• 年，卷（期）: 2021,（4）
• 所属期刊栏目: CONTROL THEORY AND APPLICATION
• 页码范围: 956-970
• 页数: 15页
• 语种: 英文
• DOI: 10.23919/JSEE.2021.000082

摘要

In this paper, a linear/nonlinear switching active dis-turbance rejection control (SADRC) based decoupling control approach is proposed to deal with some difficult control prob-lems in a class of multi-input multi-output (MIMO) systems such as multi-variables, disturbances, and coupling, etc. Firstly, the structure and parameter tuning method of SADRC is introduced into this paper. Followed on this, virtual control variables are ad-opted into the MIMO systems, making the systems decoupled. Then the SADRC controller is designed for every subsystem. After this, a stability analyzed method via the Lyapunov function is proposed for the whole system. Finally, some simulations are presented to demonstrate the anti-disturbance and robustness of SADRC, and results show SADRC has a potential applica-tions in engineering practice.