不同电源送出1 000 kV交流输电线路导线选型研究

Study on the Wire Selection of 1 000 kV AC Transmission Line with Different Power Supply

摘要: 导线选型是交流特高压输电的关键技术之一，对线路建成投产后的安全运行及经济运行有着非常重要的影响。根据拟定的输送容量、电磁环境、运行温度、安全系数等边界条件，对16种导线进行了全面的电气性能及机械性能对比。同时，根据国内不同性质电源(火电、水电、核电、风电)的特征，选取与之匹配的单位千瓦补充投资、上网电价、年运行小时数等参数进行了年费用分析，有针对性地给出了推荐建议，为工程建设提供参考。

Abstract: Conductor selection is one of the key technologies of UHVAC power transmission, which has a very important influence on the safe operation and economic operation of the line. According to the boundary conditions, such as transport capacity, electromagnetic environment, operating temperature, safety factor, the paper makes a comprehensive comparison of the 16 kinds of wires in the electrical and mechanical properties. At the same time, according to the characteristics of different nature of power supply (thermal power, hydropower, nuclear power, wind power), the selection and matching of the units of the supplementary investment, access to electricity, the number of hours per year, and other parameters for the annual cost analysis, the proposed recommendation for the construction of engineering.