PID进化设计法

本文提出了一种新的PID参数设计方法，它以误差积分型性能指标为目标函数、以设计参数的取值范围及最小增益相位裕度为约束条件建立了优化数学模型。之后，在Matlab环境下，将遗传算法同Simulink仿真技术有机融合来求解该优化模型，数值实验表明：本方法简单直观、通用性强，所设计的PID性能优异，十分适合于工程应用。

Evolutionary Approach to the Design of PID Controllers

This paper puts forward a new method of designing the parameters of PID controller.Adopting error integral criterion as the objective function along with the constraints described by the minimal gain and phase margin and the parameter ranges,we get the mathematical model for optimization.A genetic algorithm developed under Matlab environment is well combined with Simulink techniques to solve the optimization problem.The nu- merical experiment shows that though the method is simple and perspicuous,it gives PID of high performance. Thus it is a very suitable method for designing PID in engineering application.