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本文介绍一种利用仿真方法求得系统响应从而对PID调节器参数进行优化的算法及程序。首先用古典频率法设计出PID调节器的初步参数,然后用单纯形寻优法以仿真得出的系统响应误差的某种积分指标为目标函数值对PID参数进行优化。用罚函数法对PID参数进行限制以避免设计出难以实现的校正装置。根据上述算法用PASCAL语言编制了程序。程序中可以对D校正的零点和极点、I校正的零点及比例P四个参数进行优化。程序中还提供了四种输入和四种积分指标供优化时选择,便于使用。优化PID参数后,系统性能指标显著提高。本程序优化速度较快。
This paper presents a simulation method to obtain the system response to the PID regulator parameters to optimize the algorithm and program. Firstly, the initial parameters of the PID regulator are designed by the classical frequency method. Then, some integral index of the system response error obtained by simulation is used as the objective function value to optimize the PID parameters. The Penalty Function Method is used to limit the PID parameters to avoid the design of calibration devices that are difficult to implement. According to the above algorithm using PASCAL language programming. Program can be zero calibration of D and pole, I calibration of the zero and the proportion of P four parameters to optimize. The program also provides four inputs and four integral indicators for optimal selection, easy to use. Optimized PID parameters, the system performance indicators increased significantly. This program is optimized faster.