恒压供水模糊自适应PID控制器的设计、仿真

Design to Adaptive Fuzzy PID Controller for Constant-pressure Water Supply

对遗传算法和传统PID控制作简要的介绍,针对工程整定方法整定的初始值超调量较大,调节时间较长的问题,利用遗传算法对其初值进行整定。利用遗传算法整定出的一组性能较优良的PID初值,结合模糊控制的思想,利用专家系统直接建立模糊规则,进行模糊自适应PID控制器的初步设计,并对恒压供水系统进行仿真,仿真结果满足设计要求。

This paper gave a brief introduction for the traditional PID control and genetic algorithms.For the larger overshoot of tuning initial solution and longer adjustment time from engineering neaten method,the initial values were set by use of genetic algorithm.The paper set up the fuzzy rules directly and made the preliminary design to the adaptive fuzzy PID controller,and simulated the constant-pressure water supply system according to fuzzy control theory,by a set of good initial PID values from genetic algorithms,and expert system.