基于NNα阶逆的非线性大时延系统预测控制  

Predictive Control of Nonlinear Large Time-Delay System Based on NN_αth-Order Inverse

作　　者：戴先中[1] 何丹[1] 陈毓 王勤[1] 

机构地区：[1]东南大学自动控制系,南京210096

出　　处：《控制理论与应用》2000年第4期589-592,共4页Control Theory & Applications

基　　金：国家自然科学基金!( 697840 0 1);教育部博士点基金

摘　　要：针对较一般的模型未知非线性大时延系统 ,构造其NNα阶逆系统与原系统复合成NNα阶伪线性复合系统 .然后将此复合系统作为被控对象 ,用线性预测控制方法实现有效控制 .简化了预测控制器的设计 ,易于进行稳定性和稳态偏差分析 .For the control of a general class of model unknown large time delay nonlinear systems, a novel predictive controller with two stage designing procedure is proposed. In the first stage, construct NN α th order inverse and combine it with the controlled nonlinear system to form a pseudo linear composite system with minimum time delay. In the second stage, design a linear predictive controller for the pseudo linear composite system. Since the complicated nonlinear controlled system is simplified into a linear composite system, the predictive controller is easy to be implemented. And it is easy and simple to analyze the stability and stable preformance of the predictive control system.

关 键 词：预测控制 非线性大时延系统 NNα阶逆 

分 类 号：TP11[自动化与计算机技术—控制理论与控制工程]