±1100kV特高压直流线路扩径导线选型研究  

Study on Selection of Extended Diameter Conductor for ±1100 kV EHV DC Line

作　　者：林芳[1] 陈媛[1] 岳浩[1] 

机构地区：[1]中国电力工程顾问集团中南电力设计院有限公司,湖北武汉430071

出　　处：《陕西电力》2017年第2期65-68,共4页Shanxi Electric Power

基　　金：国家自然科学基金资助项目(51190105)

摘　　要：导线的选择是输电线路的重要课题,导线方案既要满足输电线路电气性能、机械性能的要求,又要具有一定的经济性。扩径导线是以常规钢芯铝绞线为基础采用抽股方式得到的,可以达到节约其铝截面并保证其外径不降低的目的。依托某±1100kV特高压直流输电线路工程,针对±1100kV直流线路特点,在现阶段导线电磁环境等相关课题主要研究成果的基础上,对线路各项主要工程量指标进行预估,采用全寿命周期年费用法对几种扩径导线方案进行综合经济性比较和分析,所得结论为±1100kV直流线路扩径导线的选择提供参考意见。Conductor selection is an important issue in transmission line. The scheme focuses on both the electrical and mechanical performance of the transmission line and certain economic performance. The expanded diameter conductor is based on the conventional steel core aluminum wire for the use of the method of pumping unit, and can achieve the purpose of saving the aluminum section and ensuring that the outer diameter is not reduced. Based on a ±1 100 kV EHV DC transmission line project, considering the characteristics and the main research results of ±1 100 kV DC line, the paper estimates the main engineering quantity index of the line, and uses full life cycle annual cost to compare and analyze several kinds of schemes for the expanded diameter conductor. The conclusion is to provide a reference for the selection of the ±1 100 kV DC transmission line extended diameter conductor.

关 键 词：导线选择 ±1 100 KV 经济性 

分 类 号：TM751[电气工程—电力系统及自动化]