特高压直流输电线路1250 mm2截面导线选型研究

特高压直流输电线路导线选型及分裂形式研究是特高压直流输电技术的重要课题,它对线路的输送容量、传输性能、环境问题、线路走廊宽度、房屋拆迁范围、技术经济指标都有很大的影响。中国经济发达地区用电量日益增长,新建电网系统规划输送容量也随之增大,大截面导线在特高压线路中亟待广泛应用。通过对多种1 250 mm2大截面线型进行详细的技术经济比较分析,提出特高压直流输电线路导线的选型方案,希望能对中国电网工程设计起到一定的借鉴和帮助作用。

Study on 1250 mm2 Conductor Selection of UHV DC Transmission Line

The study on the conductor type selection and division mode of UHV DC transmission line is an important subject of UHV DC transmission technology,which will have a great impact on transmission capacity,transmission performance,environmental issues,corridor width,housing demolition scope,technical and economic indicators. The electricity demand of the developed area in China is growing,so the transmission capacity of newly-built power grid increases and the large section conductor will be widely used in UHV transmission lines. Based on the detailed technical and economical comparison and analysis for the types of 1 250 mm2 section conductors,the type selection scheme for the conductors of UHV DC transmission lines is proposed,which provides some useful references for the power engineering design.