大截面导线在特高压直流输电线路中的应用前景  

Application prospect of large cross-section conductor on UHVDC transmission line

作　　者：周魁[1] 陈媛[1] 刘利林[1] 徐维毅[1] 

机构地区：[1]中南电力设计院,湖北武汉430071

出　　处：《中国电力》2012年第4期35-37,共3页Electric Power

摘　　要：目前国内±800 kV特高压直流输电线路采用的最大截面导线为6×900 mm2钢芯铝绞线。在分析6×JL/G2A-900/75、6×JL/G2A-1000/80、6×JL/G2A-1120/90导线方案工程初期投资、电能损耗的基础上,对3种导线方案进行全寿命周期内经济性比较,论证了年损耗小时数较高时,采用6×JL/G2A-1000/80、6×JL/G2A-1120/90导线方案在±800 kV特高压直流输电线路上的经济性更优越。At present, the largest conductor applied on ＋800 kV UHVDC transmission line is 6×900 mm^2 ACSR. Base on analysis of preliminary stage investment and power loss, a life cycle economic comparison on 6×JL/G2A-900/75, 6×JL/G2A-1000/80, 6×JL/G2A-1120/90 eonduemr types is perfomled. It is verified that application of 6 ×JL/G2A-1000/80 and 6 ×JL/G2A-1120/90 eonduetor types in 800 kV UHVDC transmission lines has economic advantages when the number of annual power loss hours is relatively high.

关 键 词：特高压直流 大截面导线 经济比较 

分 类 号：TM752[电气工程—电力系统及自动化]