电气化铁道牵引变电站谐波分析及推算  

Harmonic Analysis and Reckoning of Traction Transformer Station for Electrified Railways

作　　者：郑宏[1] 易振清 魏荣宗[3] 

机构地区：[1]江苏大学电气信息工程学院,江苏镇江212013 [2]湖北丹江铝业股份有限公司,湖北丹江口442700 [3]江苏省电力公司镇江供电公司,江苏镇江212001

出　　处：《江苏大学学报（自然科学版）》2003年第6期76-79,共4页Journal of Jiangsu University：Natural Science Edition

基　　金：江苏大学高级人才启动基金(02JDG024)

摘　　要：介绍了电气化铁道的谐波特性,对牵引变电站供电运行方式下所产生的谐波进行了详细分析。基于三相平衡条件,采用对称分量法计算,得出高压侧输入电力电网系统的谐波分量电流及线电流;论述了在三相不对称情况下的谐波分析方法,分别导出了不装滤波器和装滤波器时,牵引变压器的谐波电流与电力电网系统各相谐波电流的传输关系,得出牵引变电站注入电力电网系统的三相谐波电流计算方法,用以确定在牵引站内是否需要装设滤波器及需要抑制的谐波序次。Harmonic characteristic of electrified railways is introduced. The operating performance of traction transformer station supply is analyzed in detail. Based on the condition of three-phase balance and by using rule sampling computational method, the harmonic sequence current and line current of the high-tension side injected current into power supply system are obtained. By the method of harmonic analysis in the three-phase, nonsymmetrical condition, the transmission efficiency of traction tansformer harmonic current and power supply system for each phase harmonic current are derived with and without installing filter. The computation method of three-phase harmonic current for the system is obtained.

关 键 词：电气化铁道 牵引变电站 谐波分析 

分 类 号：TM461[电气工程—电器]