东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2008, Vol. 29 ›› Issue (11): 1532-1535.DOI: -

• 论著 • 上一篇    下一篇

基于动态矩阵方法的网络控制系统补偿策略

关守平;应婷;   

  1. 东北大学信息科学与工程学院;
  • 收稿日期:2013-06-22 修回日期:2013-06-22 出版日期:2008-11-15 发布日期:2013-06-22
  • 通讯作者: Guan, S.-P.
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(60574050)

Compensating strategy based on dynamic matrix control for networked control system

Guan, Shou-Ping (1); Ying, Ting (1)   

  1. (1) School of Information Science and Engineering, Northeastern University, Shenyang 110004, China
  • Received:2013-06-22 Revised:2013-06-22 Online:2008-11-15 Published:2013-06-22
  • Contact: Guan, S.-P.
  • About author:-
  • Supported by:
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摘要： 针对网络控制系统数据包不确定的问题,分析了该特性对网络控制系统的影响以及目前的控制方法,设计了控制器节点由事件-时间驱动,传感器节点和执行器节点由时间驱动的分布式网络控制系统模型.在此基础上,根据预测控制中动态矩阵方法具有的简单实用的特点,提出了基于动态矩阵方法的时延控制和数据包丢失补偿策略.应用此策略进行了仿真,结果表明补偿后的系统输出与存在网络时延,但数据包按时到达的系统输出几乎一致,验证了该策略的有效性.

关键词: 网络控制系统, 网络时延, 丢包补偿, 动态矩阵控制, 预测控制

Abstract: Considering the data packets uncertainty in networked control system (NCS), its influence on NCS and relevant existing controlling methods are analyzed. Then a distributed NCS model is developed where the controller is event-time with senor and actuator both time driven. Based on the simple and practical dynamic matrix method for predictive control, a new compensating strategy is proposed for network time delay and packet dropout and simulated. The results show that the output from the NCS after compensation strategy is much the same as the output from the system where the network time delay remains unchanged but the data packets arrive on time. The effectiveness of the compensating strategy is thus verified.

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