电力系统谐波影响及治理探讨

Discussion on the influence and management of harmonics in electric power system

对于产生大量谐波的用户，在用户变的低压侧加装滤波装置。改变部分运行、接线方式，减小谐波的产生、叠加、放大、产生危害的机会增加电网的短路容量、提高电气设备的短路比，来降低谐波对同一电网上其他设备的影响。

For the customer of producing a great deal of harmonic, the filtering equipments should be installed in the low voltage side of customers＇ transformer. Through change the part of operating conditions and connecting method, to reduce the opportunity of genera- tion, superposition, amplification and damage from harmonics, to increase the short circuit capability of grid and the short - circuit ratio of electrical equipment, so as to reduce the harmonics effects on the other equipments of one power grid.