PID控制系统抗饱和方法的对比研究  

Compare Study of Anti-Windup Methods for PID Control System

作　　者：李钟慎[1] 郭辉[1] 张磊[1] 李海霞[2] 

机构地区：[1]华侨大学机电及自动化学院,福建厦门361021 [2]山西忻州师范学院物理电子系,山西忻州034000

出　　处：《信息技术与信息化》2013年第4期68-71,共4页Information Technology and Informatization

基　　金：福建省自然科学基金(编号:2011J01350);华侨大学基本科研业务费专项基金(编号:JB-ZR1107);山西忻州师范学院科研项目(编号:201004)

摘　　要：PID控制作为一种常用的控制策略而被广泛应用于各种实际控制系统中。现实中的控制系统都会遇到执行机构饱和问题。PID控制器中的积分作用会导致系统进入饱和区而不能及时退出,造成系统控制性能恶化。众多学者提出了各种解决PID抗饱和问题的方法。本文通过对状态观测法、条件技术、增量算法、抗积分饱和算法、条件积分法、变结构PID控制6种方法进行仿真与比较,表明条件技术具有比较好的抗饱和效果。PID control as a common control strategy has been widely used in practical control systems. The reality of the control system will encounter the saturation problem of the actuator. Integral action of the PID controller will cause the system to enter the saturated zone which can not get rid of it in time, resulting in deterioration of the system control performance. Many scholars have proposed various methods to solve the problem of PID Anti-windup. In this paper, six methods which include the state observer approach, the conditioning technique, the incremental algorithm, the Anti-saturation of integral algorithm, the conditional integration method and the variable-structure of Anti-windup have been simulated and compared to show that the conditioning technique has a better Anti-windup effect.

关 键 词：非线性 抗饱和 PID控制 条件技术 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]