具有可测扰动典型过程的预测函数控制  

Predictive Functional Control for Typical Process with Measurable Disturbance

作　　者：岳俊红[1] 刘吉臻[1] 刘向杰[1] 谭文[1] 

机构地区：[1]华北电力大学自动化系,北京102206

出　　处：《系统仿真学报》2007年第16期3752-3755,共4页Journal of System Simulation

基　　金：国家自然科学基金项目(50576022)

摘　　要：针对具有时滞可测扰动的一阶惯性纯滞后对象,考虑扰动通道和控制通道纯滞后时间相对大小,基于Smith预估补偿思想,提出了一种改进的可测扰动前馈补偿预测函数控制算法。仿真结果表明,该算法对可测扰动引起被调量的变化有很好的补偿效果,同时给出了补偿效果与预测函数控制器设计参数选择之间的规律。该算法计算量少,易于工程实现,具有很高的实际应用价值。Based on the ideal of Smith predictor, an improved design method of predictive functional control was proposed for first-order plus dead-time process with measurable time-delay disturbance. The method emphasized the difference between control channel dead-time and disturbance channel dead-time. Simulations show that the algorithm can commendably compensate the response of regulated variable to measurable disturbance and indicate the rules between compensating effects and design parameters. Moreover, the control algorithm has the merit of simple, less calculation load, and is easy to be realized in engineering, so it has hopeful application prospect.

关 键 词：预测函数控制 Smith预估 一阶惯性纯滞后 可测扰动 前馈补偿 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]