【摘要】 详细介绍了PID控制系统过程模型参数的闭环辨识、滤波器的设计、IMC设计、实时数据的处理及实时曲线的显示和比较 ,以实现系统动态过程的优化控制。系统辨识的性能指标采用误差平方和 ,参数整定的性能指标采用绝对误差乘时间 ,系统的纯滞后分别用一阶、二阶不对称和二阶对称 pade近似 ,模型参数辨识和滤波器设计采用改进的NLJ法 ,参数整定采用IMC整定的方法。更多还原

【Abstract】 The way to develop a kind of software to identify the parameter of PID model of a closed-loop PID system with the NLJ optimization algorithm and Visual C++ was presented through an example, and how to show the real data line was given. The system identification was done by the performance index of ISE, and the parameter tuning was made by the performance index of ITAE, The pure-lags were approximated by one rank and two rank-pade, respectively.更多还原