一种动态低通滤波器

Adymamic low pass filter

在交流励磁调速系统中,需要采样电机转子侧的电压、电流信号,使用一种动态的低通滤波电路来滤除信号中的各种干扰信号,解决了普通滤波电路不能适应信号频率变化的难题。

In AC excitation speed regulation systems, the voltage signal and the current signal at the rotor side are needed. A dynamic low pass filter is used to filter noise from them. That can solve a difficult problem that normal low pass filters can＇t adapt themselves to the frequency changing of the signals.