Calculation of Steady-state Current During Contact of People and Vehicles Under AC High-voltage Transmission Line

JIANG Ling; ZHENG Zhongyuan; GAO Jianzheng; HAO Chunyan; LIU Tong; ZOU Jun

doi:10.13296/j.1001-1609.hva.2021.11.008

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Calculation of Steady-state Current During Contact of People and Vehicles Under AC High-voltage Transmission Line

更新时间：2025-04-26

- Calculation of Steady-state Current During Contact of People and Vehicles Under AC High-voltage Transmission Line
- High VoltageApparatus Vol. 57, Issue 11, Pages: 60-65(2021)
- 作者机构：
  
  1. 国网天津市电力公司电力科学研究院
  2. 天津市辐射环境管理所
  3. 清华大学电机工程与应用电子技术系
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2021.11.008
  CLC： TM75
- Published：2021
- 稿件说明：
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JIANG Ling, ZHENG Zhongyuan, GAO Jianzheng, et al. Calculation of Steady-state Current During Contact of People and Vehicles Under AC High-voltage Transmission Line[J]. High voltageapparatus, 2021, 57(11): 60-65.
DOI：

JIANG Ling, ZHENG Zhongyuan, GAO Jianzheng, et al. Calculation of Steady-state Current During Contact of People and Vehicles Under AC High-voltage Transmission Line[J]. High voltageapparatus, 2021, 57(11): 60-65. DOI： 10.13296/j.1001-1609.hva.2021.11.008.

摘要

交流高压输电线路下停有客车时

人触碰客车的金属表面时产生的接触电流对人的身心健康造成影响。求解接触电流的大小可以给交流高压输电线路的设计以及相应的安全规则提供重要指导意义。文中提出了一种计算交流高压输电线路下人与客车稳态接触电流的数值方法。该方法基于互易定理求出客车的开路电压

使得输电线路电场的计算不受客车停车位置的影响

同时大大减少了计算量。然后构造人与客车接触时的等效电路

计算了稳态接触电流的大小并进行参数影响分析。文中所作的工作是进一步计算交流输电线路下客车安全停车距离以及停车场附近输电线路高度设计的基础。

Abstract

When a coach is parked under the AC high voltage transmission line

the contact current generated when people touches the metal surface of the coach will affect people’s physical and mental health. Solving the magnitude of contact current can provide important guidance for the design of AC high voltage transmission lines and the corresponding safety rules. A kind of numerical method for calculating the steady contact current between people and coach under the AC high voltage transmission line is proposed in this paper. The method is based on the reciprocity theorem to calculate the open circuit voltage of the coach

which makes the calculation of the electric field of the transmission line free from the parking position of the coach and

at the same time

greatly reduces the calculation amount. Then

the equivalent circuit when human contacts with coach is constructed

the magnitude of steady contact current is calculated and the parameter influence analysis is performed. The work done in this paper is the base in calculating further the safe parking distance of the coach under the AC transmission line and the height design of transmission line near the parking lot.

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Related Institution

西安交通大学电气学院陕西西安710049

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河北保定071003

华北电力大学电气工程学院

College of Electrical Engineering,North China Electric Power University

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