新型换流变压器的谐波电流分析与计算  

Analysis and Calculation of Harmonic Currents in the Novel Converter Transformer

作　　者：许加柱[1] 罗隆福[1] 刘福生[1] 张志文[1] 李季[1] 李勇[1] 

机构地区：[1]湖南大学电气与信息工程学院,湖南长沙410082

出　　处：《高压电器》2007年第1期45-48,共4页High Voltage Apparatus

摘　　要：介绍了一种新型换流变压器,利用新型换流变压器绕组接线的特点,提出了一种全新的滤波和无功补偿方案。简要分析了新型换流变压器谐波屏蔽原理。针对高压直流输电系统中谐波分布的特点,对基于新型换流变压器的直流输电系统中绕组及滤波支路谐波电流进行了详细的分析计算,通过对比仿真结果,表明了谐波电流理论分析计算的正确性,为新型换流变压器绕组线规的选择及滤波器参数设计提供了科学数据。In this paper a novel converter transformer is in- troduced. By making full use of the windings connection characteristics, a new type scheme of reactive power com- pensation and filtering is presented. Then, the principle of shielding harmonic current in the transformer is briefly analyzed. According to the characteristic of the harmonic current distribution in HVDC transmission system, the harmonic currents in the windings and filter branches of novel converter transformer are analyzed and calculated. Through comparing with the simulation result, the theoretical analysis of the harmonic current is proved correctness. It also has offered scientific data to design of windings and the filter parameter.

关 键 词：新型换流变压器 无功补偿 谐波屏蔽 谐波分布 

分 类 号：TM42[电气工程—电器]