摘要
介绍提高输电通道输送容量的技术,包括大截面导线技术、紧凑型输电技术、耐热导线输电技术、同塔多回输电技术和提高导线允许最高温度技术。结合南方电网西电东送两广交流断面天广交流增容工程,对各技术方案进行了技术经济分析,结论是采用提高线路设计温升技术进行通道增容的技术和经济效益较好,建议今后新建500kV线路最高运行温度均按80℃设计。
The technologies to enhance power transmission capability of electric channel are introduced, including that of large-section conductor, compact transmission, heat-resisting wire, multi-circuit lines on the same tower and raising the conductor allowable highest temperature. Then taking the project to increase the power transmission capability of 500 kV TSQ-Guangdong I, II AC circuits in CSG west to east channel into account, this paper analyzes the technical and economic aspects of certain schemes, resulting in a conclusion that raising the conductor allowable highest temperature is the best scheme for benefit. It is proposed that the conductor allowable highest operation temperature should be 80℃ for the design of new 500 kV transmission lines.
出处
《南方电网技术》
2009年第4期36-39,共4页
Southern Power System Technology
关键词
南方电网
西电东送
增容方案
线路最高允许温度
China Southern Power Grid
capacity increase scheme
west to east power transmission
conductor allowable highest temperature
