基于模型预测的网络化控制系统补偿控制  

Compensation control of networked control systems based on model prediction

作　　者：马长林[1] 方华京[2] 

机构地区：[1]华中师范大学计算机科学系,湖北武汉430079 [2]华中科技大学控制科学与工程系,湖北武汉430074

出　　处：《系统工程与电子技术》2008年第2期362-365,共4页Systems Engineering and Electronics

基　　金：国家自然科学基金资助课题(60274014)

摘　　要：针对分时控制模式下存在于网络诱发延迟大于一个采样周期的网络化随机控制系统中的空采样和数据拒绝问题,提出了一种基于模型预测的补偿控制法。该方法通过在执行器设立缓冲区窗口并存放一定数目的历史控制量,利用多个历史控制量对当前采样周期的控制状态进行估计预测,对空采样和数据拒绝情况进行补偿控制,达到改善系统性能的目的。通过仿真实验证明了该补偿控制算法的有效性。To solve the problem of vacant sampling and data rejection in networked control systems whose network-induced delay is longer than the sampling period under the time-division control mode, a compensation control method based on model prediction is proposed. A buffer window is established at the actuator of the system to store some history control inputs which are used to estimate and predict the control state of the present sampling period. In terms of the synthetic effects of these history control inputs, the method takes compensation control to improve the performance of the system. Simulation result verifies the validity of the proposed method.

关 键 词：网络化控制系统 补偿控制 模型预测 网络诱发延迟 

分 类 号：TP278[自动化与计算机技术—检测技术与自动化装置]