摘要
阐述12脉动整流器的原理和特征谐波产生机理。以正在建设的糯扎渡至鹤山±800 kV高压直流输电工程为研究对象,分析换流变压器绕组中的特征谐波成分及其对换流变压器可能造成的影响。利用计算机辅助设计-电磁暂态模拟程序软件搭建其系统仿真模型,仿真验证谐波因素是导致换流变压器故障主要发生在二次绕组的重要原因之一,并针对该问题提出了3种解决方案。
This paper states principle of 12 pulse rectifier and mechanism of production of characteristic harmonic. Taking Nuozhadu-Heshan ± 800 kV high voltage DC transmission project under construction as study object, it analyzes composition of characteristic harmonic in converter transformer winding and its probable impacts on converter transformer. By using power system computer aided design/electric magnetic transient in DC system （PSCAD/EMTDC） to establish simulation model for the system, it verifies harmonic is one of important reasons for resulting in converter transformer fault which is occurring in secondary winding. In addition, it proposes three solutions.
出处
《广东电力》
2013年第9期17-20,50,共5页
Guangdong Electric Power
基金
广东省自然科学基金项目(S2011010004950)
广东省电网公司科技项目(K-GD2012-457)
关键词
换流变压器
特征谐波
计算机辅助设计-电磁暂态模拟程序软件
二次绕组
解决方案
converter transformer
characteristic harmonic
power system computer aided design/electric magnetic transientin DC system
secondary winding
solution
