中国电力 ›› 2019, Vol. 52 ›› Issue (2): 139-143.DOI: 10.11930/j.issn.1004-9649.201801091

• 电网 • 上一篇    下一篇

特高压半波长输电线路绝缘配合深化研究

张刘春   

  1. 中国电力科学研究院有限公司, 北京 100192
  • 收稿日期:2018-01-19 修回日期:2018-11-20 出版日期:2019-02-05 发布日期:2019-03-27
  • 作者简介:张刘春(1977-),女,博士,高级工程师(教授级),注册设备监理师,从事交直流电力系统过电压防护和绝缘配合以及高电压与绝缘技术研究,E-mail:zhangliuchun@epri.sgcc.com.cn
  • 基金资助:
    国家电网公司科技项目(XT71-16-005)。

Further Research on Insulation Coordination of UHV Half-Wavelength Power Transmission Line

ZHANG Liuchun   

  1. China Electric Power Research Institute, Beijing 100192, China
  • Received:2018-01-19 Revised:2018-11-20 Online:2019-02-05 Published:2019-03-27

摘要: 特高压半波长输电是实现大容量、远距离的一种输电方式,具有不用安装线路无功补偿装置以及不用建设开关站等优点,在中国有广阔的应用前景。绝缘配合的研究是半波长输电技术应用于工程建设的基础。首先,根据工频电压沿线分布,确定了特高压半波长交流避雷器的持续运行电压、额定电压及吸收能量;然后用污秽耐压法确定了线路绝缘子配置和空气间隙距离;最后确定了考虑功率波动时的绝缘配合情况。

关键词: 特高压, 半波长交流输电, 输电线路, 绝缘配合, 避雷器

Abstract: Ultra high voltage half wavelength transmission (UHV HWACT) is a kind of transmission mode with large capacity and long distance, which has the advantages that it is not necessary to install reactive compensation devices of the line and to build switch substations, and will be widely used in China. Research results on insulation coordination will be the base of UHV HWACT technique applied to engineering construction. Firstly, this paper determined the continuous operating voltage, the rated voltage and the absorbed energy of the UHV HWACT lightning arrester; secondly, the line insulator configuration was determined by the design method of polluted external insulation, and the air gap distance was also determined; finally, research on insulation coordination was also carried out when considering power fluctuation.

Key words: UHV, half wavelength AC power transmission, transmission lines, insulation coordination, lighting arrester

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