Improved predictive control approach to networked control systems

被引：45
|
作者：
Zhao, Y. -B. [1 ]
Liu, G. P. [1 ]
Rees, D. [1 ]
机构：
[1] Univ Glamorgan, Fac Adv Technol, Pontypridd CF37 1DL, M Glam, Wales
来源：
IET CONTROL THEORY AND APPLICATIONS | 2008年 / 2卷 / 08期
关键词：
D O I：
10.1049/iet-cta:20070363
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A predictive control-based approach is proposed to networked control systems. In this approach, an improved predictive controller is designed using delayed sensing data and a compensation scheme is proposed to overcome the negative effects of the network-induced delays and data packet dropouts in both the forward and backward channels. The proposed approach is easy to be implemented in practice compared with previous results in that only delayed data of the control inputs are used to derive the forward control predictions. The stability of the closed-loop system is obtained by modelling the system as a time delay system with structural uncertainties. Simulations show that the proposed approach is superior to the previous results in the situation where only delayed data are used.
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页码：675 / 681
页数：7
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