Passive filter and active power filter ( APF ) are the two primary approaches for eliminating harmonics.

抑制谐波的方法主要有无源滤波技术和有源 电力滤波器 技术.

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By controllable reactor, the passive filter in this paper has high controlling effect and fast response.

本设计中利用DSP控制可控 电抗器能够使无源滤波器达到较高的可控性和快速响应性.

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