一种基于遗传算法的非线性PID控制器  

A nonlinear PID controller based on genetic tuning algorithm

作　　者：韩华[1] 罗安[2] 杨勇[1] 

机构地区：[1]中南大学信息科学与工程学院,湖南长沙410083 [2]湖南大学电气与信息工程学院,湖南长沙410082

出　　处：《控制与决策》2005年第4期448-450,454,共4页Control and Decision

基　　金：国家"十五"攻关项目(2002BA218C);教育部博士点基金项目(20030533014).

摘　　要：基于PID控制器各增益参数与偏差信号之间呈现非线性关系,拟合各参数的非线性函数可分别对控制器的P/I/D各部分实施单独调节的思想,提出根据控制与误差之间的调节规律,给定一组增益参数的非线性函数,并采用遗传算法来优化和构造此非线性PID调节器.典型系统的仿真结果表明,该控制器可在一定程度上兼顾系统的动态和静态性能.The relationship between the error signal and gain parameters of PID controller is nonlinear , fitting and constructing the nonlinear function of each parameter can be used respectively for the individual tuning each part of PID controller. In this article, it is described that based on the tuning law between the control and error, and (formulating) the nonlinear function of each gain parameter, the nonlinear PID controller could be optimized and (constructed) by adopting genetic algorithm. The simulate results of typical system shows that the dynamic and static (performances) of the system can be both attended to at a certain degree.

关 键 词：PID控制器 非线性函数 遗传算法 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]