一种改进的DMC算法在网络控制系统中的应用  

Application of Improved DMC Algorithm in Networked Control System

作　　者：李静[1] 杨洲[2] 

机构地区：[1]青岛科技大学自动化学院,山东青岛266042 [2]青岛农业大学教务处,山东青岛266109

出　　处：《化工自动化及仪表》2008年第6期34-37,共4页Control and Instruments in Chemical Industry

摘　　要：研究网络环境下控制系统时延的组成与产生机理,提出一种基于动态矩阵控制(DMC)模型预测算法的改进DMC算法。该算法充分利用动态矩阵控制(DMC)算法中冗余的预测输出序列和控制增量序列,在控制数据由于网络时延和丢包而无法及时到达执行器时,实现对网络时延和数据丢包的补偿。并通过实验证明改进算法的有效性。The mechanism of production and composing of networked delay were analyzed. Based on dynamic matrix control （ DMC）, an improved algorithm for network was proposed. In this algorithm, when the actuator node cannot receive the data on time, the predictive output sequence and control increment sequence were used which can avoid the actuator＇s mis-operating. Finally,the improved DMC algorithm in the actual network is proved based on the experimental platform.

关 键 词：网络控制系统 网络时延 模型预测控制 实验平台 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]