This paper analyzed how to solve the harmonic problem produced by frequencyconverter using active filter on amine production tine in Anhui Huaihua Group.
并分析了淮化集团甲胺生产线如何采用并联有源滤波器，解决因变频器所导致的谐波问题。
2
Therefore, the secondary winding of transformer extracts harmonic energy without fundamental reactive power, which becomes applicable fundamental frequency power via frequency converter.
使二次侧绕组提取到不含基波无功的谐波电能，并经过变频装置变为可直接利用基频电能。
3
The basic operation principle of the series active power filter for harmonic suppression of frequencyconverter is analyzed in this paper, and its control method and control circuit are studied.