Journal of Systems Engineering and Electronics ›› 2006, Vol. 17 ›› Issue (1): 172-176.doi: 10.1016/S1004-4132(06)60030-3

• CONTROL THEORY AND APPLICATION • Previous Articles     Next Articles

Fuzzy controller design for networked control system with time-variant delays

Li Zhang 1 '2 & Fang  Huajing  1   

  1. 1. Dept. of Control Science and Engineering, Huazhong Univ. of Science and Technology, Wuhan 430074, P.R.China;
    2. Coll. of Physics and Electronic Technology, Hubei Univ. , Wuhan 430062, P.R. China
  • Online:2006-03-24 Published:2019-12-19

Abstract:

Networked control system is new hot-point in control engineering. A new delayed model for networked control systems is presented, based on which an LQR controller is designed. A method of delays estimation online is also given. For the difficulty on implementation of LQR in NCSs with time-variant delays, the Mamdani intelligent logic with LQR controller is addressed. The stability of the networked control system is also given. Simulation results prove that the novel controller can make the system stable and robustly preserve the performance in terms of time-variant delays.

Key words: control engineering, intelligent, network