具有死区预补偿的非线性预测函数控制  

Nonlinear Predictive Functional Control with Dead Zone Pre-compensation

作　　者：谢启[1] 杨马英[1] 张峻颖[1] 

机构地区：[1]浙江工业大学信息工程学院,浙江杭州310032

出　　处：《控制工程》2003年第5期466-468,477,共4页Control Engineering of China

基　　金：浙江省自然科学基金(600040)

摘　　要：死区特性是一类典型的非线性,它对系统最直接的影响是造成稳态误差。针对工业控制系统中广泛存在的死区非线性特性,通过引入死区非线性预补偿器,使系统转化为广义线性系统,完全消除了死区非线性特性对系统的影响,然后针对此广义线性系统进行预测函数控制算法的设计。利用Matlab软件仿真表明,该非线性预测函数控制方法是一种计算简单、跟踪性能好、误差较小的有效的控制方法。Dead zone character is a typical nonlinearity, which causes steady error to the system. The control system with dead zone nonlinearity is transformed into linear system by designing nonlinear pre-compensator. The predictive functional control with dead zone nonlinearity is studied. The simulation with Matlab software indicates that this method is an advanced control method that it has the following properties: simple algorithm, less calculation on line and low control error.

关 键 词：计算机控制算法 非线性预测函数控制 死区预补偿 工业过程控制 

分 类 号：TP273.5[自动化与计算机技术—检测技术与自动化装置]