±800kV直流换流站直流侧接线及设备配置方案探讨  

Discussion of DC Yard Connection and Equipment Configuration of ±800kV DC Convert Station

作　　者：李学鹏[1] 方静[2] 李岩 陈云[1] 申卫华[1] 

机构地区：[1]西北电力设计院,西安710075 [2]中国电力工程顾问集团公司,北京100120 [3]南方电网技术研究中心,广州510623

出　　处：《南方电网技术》2009年第6期30-34,共5页Southern Power System Technology

基　　金："十一五"国家科技支撑计划特高压输变电系统开发与示范项目课题资助(2006BAA02A22)~~

摘　　要：±800kV直流输电工程的电压高、输送功率大,其直流换流站直流侧接线及设备配置需结合换流设备制造、运输条件的限制,并综合考虑整个换流站的可靠性、可用率来确定。鉴此,对换流站直流侧接线及设备配置方案进行了研究。研究结果为:特高压换流站换流器的接线推荐采用每极2个12脉动串联方案。对比电压,又可细分为(600+200)kV、(500+300)kV、(400+400)kV三种,其中(400+400)kV方案如分析所述经济性和可行性最好,所以阀组接线推荐采用(400+400)kV方案。直流开关场接线方案采用典型双极直流接线方案比较合适。The ±800 kV UHVDC transmission project has characteristics of high voltage and great power, and its main circuit and equipment configurations of DC yard should be considered according to the ability of the DC equipment manufacture and the transport limitation as well as the reliability and usability of the whole convert station. It is concluded in this paper that the recommended scheme for _ 800 kV UHVDC station is that with two 12-pulse bridges in series per pole. In terms of voltage, three types of combination are possible, i.e. （600 ＋ 200） kV, （500 ＋ 300） kV and （400 ＋ 400） kV. The （400 ＋ 400） kV scheme is most economical and feasible as analyzed in this paper, so it is the best one. The scheme for the circuit configuration of DC yard is recommended as the typical two-pole DC scheme.

关 键 词：特高压直流输电 换流站 换流变压器 换流站直流场 

分 类 号：TM721.1[电气工程—电力系统及自动化]