基于高阶时滞PI控制的位置伺服系统

利用频率域模型降阶理论,采用了直接将高阶滞后对象在频率域内降阶为低阶滞后对象,针对低阶滞后对象设计PI控制器;用这种设计的控制器均具有结构简单、可调参数少、参数调节方便的特点.在重复控制理论基础上设计了一种新的PI控制方法,通过频域分析和伯德图分析,他们能得到更宽的带宽.

Position Servo System Based on High Order PI Controller with Time-delay

Based on the model reduction theory in frequency-domain,an especial PI controller for high order processes with time-delay was designed by a low order model reduced directly from the process model.The advantages of these controllers are simple structure,small number of tuning parameters and easy tuning procedures. An advanced PI control method was analyzed.Comparisons by frequency domain and Bode plot analysis experiments show that advanced controllers are much capable than PI controllers.They can achieve higher bandwidth.