中文摘要：

为了提高系统的动态性能，设计了一种新型变参数PID调节器，并在系统频率响应分析的基础上，增加一级一阶低通滤波器作为滤波前馈环节，构成一种新型的带滤波前馈的变参数PID调节器，将其运用于交流伺服驱动的位置调节器中。实验结果表明：设计的带滤波前馈的变参数PID调节器明显地减少了系统的位置跟踪误差，改善了系统性能。

英文摘要：

In order to improve system＇s dynamic performance, a new variable parameter PID controller was designed. Based on the analysis of system＇ s frequency response, a first-order low band filter was added as a feedforward part. Both formed a novel variable parameter PID controller with filtering feedforward. This controller was used as the position controller in an AC servo driver. Experimental results show that the controller can reduce the position tracking error and improve the system＇s performance.