Technical gazette, Vol. 23 No. 1, 2016.
Original scientific paper
https://doi.org/10.17559/TV-20160108182240
Fault tolerant control for fixed set-point control nonlinear networked control systems
Liu Xiuzhi
; (1) School of automation, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing, Postcode: 100081, China / (2) College of Electrical Engineering and automation, Shandong University of Science and Technology, Qingdao, Shan
Dai Yaping
; School of automation, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing, Postcode: 100081, China
Abstract
This paper proposes an approach for achieving fault tolerant control algorithm for a kind of networked control system which is fixed set-point control and with nonlinear plant. We firstly describe the nonlinear networked control system and linearize the model of the plant at the operating point, then construct a synthesis model of the whole system, which includes all relevant factors in our research such as network induced time delay, data packet loss, the faults of sensors and actuators etc. Based on this model, the stability condition in meaning square sense of the system is gained by constructing a Lyapunov function. Then the fault tolerant control algorithm is obtained from the stability condition. Lastly, a numerical example is used to prove the validity of the theory.
Keywords
fault tolerant control; fixed set-point control; linearize; nonlinear networked control system
Hrčak ID:
153153
URI
Publication date:
19.2.2016.
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