• CSCD核心库收录期刊
  • 中文核心期刊
  • 中国科技核心期刊

电力建设 ›› 2015, Vol. 36 ›› Issue (2): 61-66.doi: 10.3969/j.issn.1000-7229.2015.02.010

• 输配电技术 • 上一篇    下一篇

同廊道交直流输电线路带电作业安全防护研究

朱建雄1,唐波1,张弓达2,方书博2,瞿子航1,聂壤1   

  1. 1.三峡大学电气与新能源学院,湖北省宜昌市 443002;2.国网电力科学研究院,武汉市 430074
  • 出版日期:2015-02-01
  • 作者简介:朱建雄(1989),男,硕士研究生,工程师,主要从事输电线路运行维护及线路电磁环境研究; 唐波(1978),男,博士研究生,主要从事超特高压输电技术和线路电磁环境研究; 张弓达(1986),男,硕士,主要从事输电线路运行维护及线路电磁环境研究; 方书博(1985),男,硕士,主要从事输电线路运行维护及线路电磁环境研究; 瞿子航(1989),男,硕士研究生,主要从事输电线路运行维护工作; 聂壤(1989),男,硕士研究生,主要从事输电线路运行维护工作。
  • 基金资助:
    浙江省电力公司科技项目(ZDK/GW006-2012)。

Safety Protection for Live Working of AC/DC Parallel Transmission Lines

ZHU Jianxiong1, TANG Bo1, ZHANG Gongda2, FANG Shubo2, QU Zihang1, NIE Rang1   

  1. 1. College of Electronic Engineering & New Energy, China Three Gorges University, Yichang 443002, Hubei Province, China; 2. State Grid Electric Power Research Institute, Wuhan 430074, China
  • Online:2015-02-01

摘要: 超/特高压交直流并行线路带电作业区域电压高、场强大,为保证并行线路带电作业的安全开展,需要对 带电作业人员安全防护进行研究。分析了带电作业的安全影响因素,依据线路实际尺寸建立了1∶1计算模型, 采用有限元法对同走廊四回并行线路进行了电场仿真,获得了带电作业典型位置点的电场强度,根据仿真结果 对带电作业人员电位转移放电能量进行了计算。同时建立了人体模型,计算分析了等电位作业工况下人体不同 部位的电场强度特点。计算结果表明:同电压等级独立走廊带电作业安全防护措施同样适合于四回并行线路带 电作业。提出了相应的安全防护措施,研究结果可为同走廊多回并行线路带电作业的开展提供依据和技术支撑 。

关键词: 超/特高压线路, 四回并行线路, 电场强度, 电位转移, 放电能量, 安全防护

Abstract: The live working of UHV/EHV AC/DC parallel transmission lines have the characteristics of high regional voltage and strong electric field. To ensure the safety of live working on parallel lines, the safety protection for live working was researched. This paper analyzed the influencing factors of the safety of live working; established a 1:1 computing model based on the actual size of the line; analyzed the electric field of four-circuit parallel lines with using the finite element method; obtained the electric field strength of a typical location in live working; and calculated the discharge energy generated by potential transfer according to the simulation results. Then, a human body model was established to analyze the electric field intensity of the human body in different parts during equipotential working. The results show that: under the same voltage, the safety protection measures for live working on independent corridor are also suitable for live working on parallel transmission lines. Finally, corresponding safety protection measures were suggested. The research results can provide the basis and technical support for live working on parallel transmission lines in same corridor.

Key words: UHV/EHV transmission lines, four-circuit parallel lines, electric field, potential transfer, discharge energy, safety protection