配电网中谐波的消除

The Elimination of Harmonics in Distribution Network

介绍了在配电网中消除谐波的方法，提出了基于曲折移相的无电容拓扑零序滤波器。投入滤波器前后的测量结果显示，投入滤波器后基波不平衡电流约降到原来的1／6—1／3，3次谐波电流约降到原来的1／3，9次谐波电流约降到原来的1／9～1／5。

Introducing the harmonic elimination methods in distribution networks, this paper presents a topological zero-sequence filter without capacitor based on zigzag phase-shifting. The comparison of measurement results without and with the filter shows that the fundamental imbalance current as with the filter is down to 1/6- 1/3 of that as without the filter, and the 3rd harmonic current is down to 1/3 while the 9th harmonic current is down to 1/9 - 1/5.