基于GA的模糊控制器在PWM直流位置控制系统中的应用

Application of a Fuzzy Controller Based on the Genetic Algorithm in the PWM DC Position Control System

设计了一种模糊控制器。其中 ,模糊控制器输入量和输出量的隶属函数以及量化因子用遗传算法进行优化 ,并把该控制器用于一个基于PWM技术的直流位置控制系统。与原来采用的PI控制器相比 ,模糊控制器对系统参数的变化适应性更强 。

A kind of fuzzy controller is designed.With the genetic algorithm, the memberships of the fuzzy controller′s inputs and output, and the quantified coefficients are optimized. The controller is used to a DC position control system based on the PWM technology. Compared with the formerly PI controller, fuzzy controller is more adaptive to the change of the system parameters, and attains better control effect.