中文说明： 基于粒子群算法的PID控制器优化设计，通过对PID三个变量比例、积分和微分的参数寻优，得到最佳的三个参数，得到控制器最好输出曲线，其超调量最小，超调时间小。
English Description：
Optimum design of PID controller based on Particle Swarm Optimization algorithm, through the three variable PID Proportional, integral and differential parameter optimization, best of three parameters, get the best output controller curve, least overshoot, overshoot time is small.