基于阵列滤波器的变频器谐波治理及应用

Harmonic Suppression and Application of Converters Based on Array Filter

简单分析了6脉波AC/DC/AC变频器对电网产生谐波的原理,并介绍了一种T型结构的阵列滤波器。该滤波器由阵列电抗器和滤波电容器串、并联组成,滤波时将其串于变频器设备之前。仿真和实际应用表明,该滤波器对6脉波变频器产生的谐波有很好的滤除效果,可以将变频器产生的电流畸变率控制在5%以内。

This paper briefly analyses the theory of six-pulse AC/DC/AC converter harmonic generation and then indroduces a kind of T-type array filter.The filter is made of seriesed and paralleled array inductors and filter capacitors,which is seriesed in the front of converters when putting into use.According to simulation datas and application effects,it indicates the T-type array filters have a quite good effect for converter harmonic to control the THD under 5%.