电气化铁道无功治理的可控电抗器应用研究  

Application Study of Adjustable Reactor for Reactive Power Compensation of Electrified Railways

作　　者：郑宏[1] 李卫玲[2] 魏荣宗[3] 

机构地区：[1]江苏大学,江苏镇江212013 [2]机械工业信息研究院,北京100037 [3]江苏省电力公司镇江供电公司,江苏镇江212001

出　　处：《电力电子技术》2004年第6期39-41,共3页Power Electronics

基　　金：江苏省教育厅自然科学基金资助项目(04KJB470023);镇江市科技计划项目(SH2003013)

摘　　要：综合治理电气化铁道的谐波和无功均要求动态补偿无功功率。本文提出了一种带磁分路的变压器式可控电抗器的静止动态无功补偿器的新模型。在该可控电抗器次级侧设置若干组绕组,每组绕组用反并联晶闸管控制其导通程度,可连续调节可控电抗器的感性无功功率,配合滤波兼补偿的滤波支路,从而实现无功功率的动态补偿。该方法能使可控电抗器产生的谐波电流小,次级侧的电压低,有利于应用电力电子器件的工程实施等。实验表明,设计出的可控电抗器具有良好的动态无功功率补偿性能。The composite compensation of harmonic and reactive power of electrified railways needs reac-tive power dynamic compensation.This paper proposes a new model of static var compensator,which is based on magnetic shunt transformer-adjustable reactor.Set some electrical windings in secondary winding of the trans-former-adjustable reactor,using anti-parallel thyristor to control conduction angle in each winding,the inductive reactive power can be smoothly regulated,and with the filter reactor-capacitor circuit,the dynamic compensation of reactive power would be available.This method has small harmonic current and low voltage of secondary wind-ing of the transformer,which is extremely advantageous to the engineering operating of power electronic devices.The designed adjustable reactor has fine performance of reactive power compensation.

关 键 词：电气化铁道 无功补偿 无功治理 可控电抗器 

分 类 号：U223.53[交通运输工程—道路与铁道工程] TM47[电气工程—电器]