双流制式下四分裂式变压器用作双回路滤波电感的特性分析  

Characteristic Analysis of Four-split Transformer Used as Double-circuit Filter Inductor in Double-current System

作　　者：王彪[1] 张彦宇 李响 李晓松 WANG Biao;ZHANG Yanyu;LI Xiang;LI Xiaosong(Hunan Petrochemical Vocational and Technical College,Yueyang 414011,China)

机构地区：[1]湖南石油化工职业技术学院机电工程学院,岳阳414011

出　　处：《湖南工程学院学报（自然科学版）》2024年第1期15-18,24,共5页Journal of Hunan Institute of Engineering(Natural Science Edition)

基　　金：湖南省科学研究青年项目(21B0893)。

摘　　要：对一台运行于双流制下的机车进入直流电网时其变压器(四分裂式)用作电抗器的电感值进行了分析和计算.机车运行于直流电网时变压器同一铁心柱上的2个低压绕组串联接入回路滤波,而4个高压绕组并联开路.4个低压绕组两两串联有4种接法,且同一接法还有双边工作和单边工作的情况.利用在分析磁场的基础上获得的四分裂式变压器8个绕组的电感矩阵,列写4种不同接法时电路方程,将其等效为两端口网络,进行等效阻抗及电感计算,且对结果进行了讨论,给出了有关建议.The transformer of a locomotive is used as the reactor when it is powered by DC power,which is running in a dual current system.At this time,the two low voltage windings on the same iron core column of the transformer are connected in series to the loop for filtering,and the four high voltage windings are open in parallel.There are four kinds of connections for four low voltage windings with two in series;moreover the same connection also has bilateral work and unilateral work.Thus,the equivalent inductance of the transformer is worth further study.In this paper,the inductance matrix of eight windings of a four split transformer obtained by analyzing of magnetic field is used to write the circuit equations of four different connections,and they are equivalent to a two port network.Finally the equivalent impedance and inductance are calculated,and the results are discussed in detail and some proposal is presented.

关 键 词：双流制机车变压器 绕组接法 单双端工作 等效电感 

分 类 号：TM4011[电气工程—电器]