酒泉-湖南±800kV直流换流站的避雷器配置方案研究(英文)  

Research on Arrester Protection Scheme of Converter Station for ± 800 kV UHV DC Project From Jiuquan to Hunan

作　　者：张择策 侯雨伸[1] 郭静丽[1] 张玥[1] 武泽辰 侯孚睿 沈天时 

机构地区：[1]西安交通大学电气工程学院

出　　处：《电气工程学报》2015年第12期1-6,共6页Journal of Electrical Engineering

基　　金：国家高技术研究发展计划项目(863计划)(2012AA052701)

摘　　要：针对即将建设的酒泉-湖南±800k V直流换流站,提出了一种新的避雷器配置方案。该方案提出直接在最高电位换流变压器的交流侧配置A2避雷器,在上、下12脉动换流单元中间母线处配备CB1A和CB1B避雷器并将平波电抗器分别布置在极线和400k V直流母线上,撤掉E1H高能量避雷器。提出了将CB1A和CB1B避雷器以及平波电抗器装设在户外以节省阀厅空间的想法。通过比较传统的经典±800k V换流站避雷器配置方案(方案A)和该新方案(方案B),论述了该方案的特点和优势,并根据避雷器的直流参考电压选择原则给出了一个参数选择方案。该文所介绍的避雷器配置方案和所选用的避雷器参数对酒泉-湖南±800k V直流输电工程具有一定指导作用。This paper introduces a new arrester protection scheme of converter station for ±800 k V UHV DC project from Jiuquan to Hunan. The new scheme proposes to use A2 arrester directly at the AC side of the maximum potential converter transformer and use CB1 A and CB1 B arrester at the bus between two 12 pulse converter units. The new scheme proposes to install smooth reactors equally on pole bus and 400 kV DC bus and abandon E1 H arrester. This paper proposes to install CB1 A arrester, CB1 B arrester and smooth reactors together outdoors in order to save more space for valve hall. This paper compares the traditional typical scheme（scheme A） for ±800k V UHV DC converter station and the new scheme（scheme B） and analyzes the characteristics and advantages of the new scheme. This paper also selects the arrester parameters according to the selection principle of arrester DC reference voltage. The new arrester protection scheme and its parameters play some guiding roles in ±800k V UHV DC project from Jiuquan to Hunan.

关 键 词：换流站 避雷器 平波电抗器 配置方案 

分 类 号：TM862[电气工程—高电压与绝缘技术]