Journal of Systems Engineering and Electronics ›› 2021, Vol. 32 ›› Issue (4): 956-970.doi: 10.23919/JSEE.2021.000082

• CONTROL THEORY AND APPLICATION • Previous Articles     Next Articles

Stability analysis of linear/nonlinear switching active disturbance rejection control based MIMO continuous systems

Hui WAN1(), Xiaohui QI1(), Jie LI2,*()   

  1. 1 Department of Unmanned Aerial Vehicle Engineering, Army Engineering University of PLA, Shijiazhuang 050003, China
    2 The 32nd Research Institute, China Electronics Technology Group Corporation, Shanghai 201800, China
  • Received:2020-11-10 Online:2021-08-18 Published:2021-09-30
  • Contact: Jie LI E-mail:huiwan_0425@163.com;qi-xh@163.com;lijienewlife1234@163.com
  • About author:|WAN Hui was born in 1991. She received her B.E. and M.E. degrees from the Department of Unmanned Aerial Vehicle Engineering, the former Mechanical Engineering College, Shijiazhuang, China, in 2014 and 2016, respectively. She is currently working towards her Ph.D. degree in Army Engineering University. Her research interests include theory and application of active disturbance rejection control and flight control of unmanned aerial vehicle. E-mail: huiwan_0425@163.com||QI Xiaohui was born in1963. She received her B.E., M.E. and Ph.D. degrees from Nanjing University of Science and Technology, Nanjing, China, in 1983, 1988, 2010, respectively. She is currently a professor at the Department of Unmanned Aerial Vehicle Engineering, Army Engineering University of PLA. Her research interests include flight control theory and application for unmanned aerial vehicle, and adaptive control. E-mail: qi-xh@163.com||LI Jie was born in 1987. He received his B.E., M.E. and Ph.D. degrees from the Department of Unmanned Aerial Vehicle Engineering, the former Mechanical Engineering College, Shijiazhuang, China, in 2010, 2012, 2016, respectively. Currently, he is working towards his Ph.D. degree in Army Engineering University. His research interests include theory and application of active disturbance rejection control, particularly fully exerting advantages of the nonlinear mechanism. E-mail: lijienewlife1234@163.com
  • Supported by:
    This work was supported by the Scientific Research Innovation Development Foundation of Army Engineering University ((2019)71)

Abstract:

In this paper, a linear/nonlinear switching active disturbance rejection control (SADRC) based decoupling control approach is proposed to deal with some difficult control problems 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 adopted 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 applications in engineering practice.

Key words: linear/nonlinear switching active disturbance rejection control (SADRC), multi-input multi-output (MIMO) continuous system, decoupling control, stability analysis