中文说明：利用PSO粒子群搜索算法，辨识PID参数:Kp，Ki，Kd.结果表明虽然该方法辨识精度不是很高，但是也有一定可信度.
English Description：
PSO particle swarm optimization algorithm is used to identify PID parameters: KP, Ki, KD. The results show that although the identification accuracy of this method is not very high, it also has a certain degree of credibility