Chattering Free Sliding Mode Control for Uncertain Discrete Time-Delay Singular Systems

2012 ◽  
Vol 15 (1) ◽  
pp. 260-269 ◽  
Author(s):  
Jian-ning Li ◽  
Hongye Su ◽  
Yibo Zhang ◽  
Zheng-guang Wu ◽  
Jian Chu
Keyword(s):  
Time Delay ◽  
Sliding Mode Control ◽  
Discrete Time ◽  
Sliding Mode ◽  
Singular Systems ◽  
Mode Control ◽  
Discrete Time Delay ◽  
Chattering Free

scholarly journals Chattering-Free Sliding Mode Control for Networked Control System with Time Delay and Packet Dropout Based on a New Compensation Strategy

Complexity ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-12
Author(s):  
Yu Zhang ◽  
Shousheng Xie ◽  
Ledi Zhang ◽  
Litong Ren ◽  
Bin Zhou ◽  
...  
Keyword(s):  
Time Delay ◽  
Sliding Mode Control ◽  
Sliding Mode ◽  
Networked Control ◽  
Packet Dropout ◽  
Compensation Strategy ◽  
Channel Network ◽  
Reaching Law ◽  
Mode Control ◽  
Chattering Free

This paper addresses the sliding mode control problem for a class of networked control systems with long time delay and consecutive packet dropout. A new modeling method is proposed, through which time delay and packet dropout are modeled in a unified model described by one Markov chain. To avoid the chattering problem of classic reaching law, a new chattering-free reaching law is proposed. Then with a focus on the problem that controller-actuator channel network condition cannot be foreseen by the controller, a new compensation strategy is proposed, which can effectively compensate for the effect of time delay and packet dropout in controller-actuator channel. Finally, a simulation example is presented to demonstrate the effectiveness of the proposed approach.

scholarly journals A Discrete-Time Chattering Free Sliding Mode Control with Multirate Sampling Method for Flight Simulator

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Yunjie Wu ◽  
Youmin Liu ◽  
Wulong Zhang
Keyword(s):  
Sliding Mode Control ◽  
Discrete Time ◽  
Sampling Method ◽  
Sliding Mode ◽  
Reference Signal ◽  
Flight Simulator ◽  
Mode Control ◽  
Dynamic Tracking ◽  
Multirate Sampling ◽  
Chattering Free

In order to improve the tracking accuracy of flight simulator and expend its frequency response, a multirate-sampling-method-based discrete-time chattering free sliding mode control is developed and imported into the systems. By constructing the multirate sampling sliding mode controller, the flight simulator can perfectly track a given reference signal with an arbitrarily small dynamic tracking error, and the problems caused by a contradiction of reference signal period and control period in traditional design method can be eliminated. It is proved by theoretical analysis that the extremely high dynamic tracking precision can be obtained. Meanwhile, the robustness is guaranteed by sliding mode control even though there are modeling mismatch, external disturbances and measure noise. The validity of the proposed method is confirmed by experiments on flight simulator.

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