主要研究基于粒子群算法控制系统PID参数优化设计方法以及对PID控制的改进。选择控制系统的目标函数，本控制系统选用时间乘以误差的绝对值，通过对控制系统的逐步仿真,对结果进行分析-The main research based on particle swarm optimization algorithm control system PID parameter optimization design method and the improvement of PID control. Choose the objective function of the control system, this control system uses the absolute value of the error, and the result is analyzed by the simulation of the control system.