基于静止无功补偿的电铁谐波抑制分析  

Study on SVC-based Harmonic Suppression for Electrified Railway

作　　者：吕晨旭 吕晨焕 王建平 

机构地区：[1]忻州供电公司,山西忻州034000

出　　处：《山西电力》2012年第3期33-37,共5页Shanxi Electric Power

摘　　要：电铁110 kV线路运行时,电网负序和谐波超过国标要求,并影响发电机组的正常运行,提出了一个静止无功补偿方案,来抑制负序和谐波电流。对静止无功补偿器的性能进行了分析,研究了其工作原理和性能表现。针对电铁谐波的严重危害,论述了将其投入到电铁谐波治理所收到的良好效果,并简要分析了静止无功补偿器对电力系统稳定性的作用及影响。When the 110 kV rail traction power-supply lines are in operation, the negative sequence components and harmonic level of Xinzhou Power Grid exceed the national standard and have influence on the normal operation of generators. A static VAR compensation （SVC） scheme is proposed to reduce the negative sequence components and harmonic currents. In this paper, the performance of SVC and its working principles are researched and analyzed. The hazards of harmonics caused by rail traction power- supply gains control after launching the SVC into electrical railway. It illustrates that SVC ensures the stable operation of power system.

关 键 词：负序电流 谐波 静止无功补偿 电能质量 

分 类 号：TM922[电气工程—电力电子与电力传动]