文档介绍：±800 kV 特高压直流输电线路运行初探
杜建忠
山西电力公司超(特)高压分公司,山西省太原市高新区佳华街 9 号 030012
Discuss on the operation of ±800 kV Ultra HVDC Power Transmission Line
Du Jianzhong
EHV(UHV) Power Transmission & Transformation Branch co. of SEPC
,JIAHUA STREET ,New and High-Tech development zone,Taiyuan,Shanxi
ABSTRACT: ±800kV Ultra HVDC Demonstration
1 我国直流输电概况及发展
Transmission Project put into operation, which
represent China step into the work era of 我国直流输电从上世纪 80 年代起
UHV AC and DC. At present, No operation 步,1989 年建成“葛洲坝—上海”±500 kV
experiences can be used about the ±800 kV Ultra 高压直流输电工程;2010 年 7 月,建成四
HVDC Power Transmission line in the world. In 川向家坝~上海奉贤±800kV 特高压直流
order to avoid large-scale blackout and ensure the 输电工程与云南楚雄~广州穗东±800kV
safe and stable operation of line, ±800 kV UHV 特高压直流输电工程;累计建成±500kV
structure and electric characteristics, the internal 及以上直流线路 11916km,32700 MW;
and external cause of line failure are analyzed based 目前在建线路 5635 km,18100 MW;运
on the conclusion of current EHV (UHV) 行电压、输送容量均居世界首位。直流特
transmission operation experiences. The key 高压设备国产化率达到 63-67%。
problems that need pay more attention to, are 我国特高压直流定位为大水电基地和
proposed from the influences of pollution, lighting 大煤电基地的超远距离、超大容量外送;
strike, severe weather on the ±800 kV UHV DC 并已开始±1000 kV 特高压直流输电技术
transmission. 研究[1]。随着三峡、金沙江、雅砻江、大
渡河、怒江水电的开发,以及西北、华北
KEY WORD: UHV DC