电工技术学报2012，Vol.27Issue(4)：71-76,82,7.
感应滤波器对新型换流变压器短路阻抗的影响
Influence of Inductive Filters on Short-Circuit Impedances of New Converter Transformer
摘要
Abstract
The short-circuit impedances of converter transformer are important technical parameters in HVDC system.Compared with the traditional converter transformers,the new converter transformer has unique windings connection mode.Based on the peculiar topological structure of the new converter transformer,this paper establishes the mathematical relations of the valve side short-circuit impedance ZK,the grid side short-circuits impedance Zk and the filter impedance Zf,respectively.According to the analysis of the relation of the short-circuit impedances and the filter impedance,the results show that the short-circuit impedance change a little whether or not with filters,so that filters have little effect on the short-circuit impedances,And according to the comparison between the short circuit impedance ZK and Zk,it shows that the both short-circuit impedance are almost the same,so that the short-circuit impedance of the new converter transformer are symmetrical.Finally,the theoretical calculation,simulation and experiment results verify the correctness of the theoretical analysis.关键词
高压直流输电/新型换流变压器/短路阻抗/感应滤波器Key words
HVDC/new converter transformer/short-circuit impedance/inductive filter分类
信息技术与安全科学引用本文复制引用
陈清玉,罗隆福,许加柱,董书大,邓建国,张志文,赵志宇..感应滤波器对新型换流变压器短路阻抗的影响[J].电工技术学报,2012,27(4):71-76,82,7.基金项目
国家自然科学基金（51077045,50907018）资助项目 （）
