Investigation to Over-voltage on 500 kV HVDC Double-circuit Lines on Same Tower

PU Zi-heng; RUAN Jiang-jun; DU Zhi-ye; WU Tian

doi:10.13296/j.1001-1609.hva.2012.10.012

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Investigation to Over-voltage on 500 kV HVDC Double-circuit Lines on Same Tower

更新时间：2025-04-26

- Investigation to Over-voltage on 500 kV HVDC Double-circuit Lines on Same Tower
- High VoltageApparatus Vol. 48, Issue 10, Pages: 52-57(2012)
- 作者机构：
  
  武汉大学电气工程学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2012.10.012
  CLC： TM864
- Published：2012
- 稿件说明：
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[1]普子恒,阮江军,杜志叶,吴田.同塔双回500kV高压直流线路感应过电压研究[J].高压电器,2012,48(10):52-57.

PU Zi-heng, RUAN Jiang-jun, DU Zhi-ye, et al. Investigation to Over-voltage on 500 kV HVDC Double-circuit Lines on Same Tower[J]. High voltageapparatus, 2012, 48(10): 52-57.
[1]普子恒,阮江军,杜志叶,吴田.同塔双回500kV高压直流线路感应过电压研究[J].高压电器,2012,48(10):52-57. DOI： 10.13296/j.1001-1609.hva.2012.10.012.

PU Zi-heng, RUAN Jiang-jun, DU Zhi-ye, et al. Investigation to Over-voltage on 500 kV HVDC Double-circuit Lines on Same Tower[J]. High voltageapparatus, 2012, 48(10): 52-57. DOI： 10.13296/j.1001-1609.hva.2012.10.012.

摘要

为研究同塔双回500 kV高压直流线路在不同极线布置方式下对接地故障的过电压水平以及直流过电压大小的影响

根据实际工程参数

采用电磁暂态仿真软件PSCAD建立500 kV高压直流输电模型。模拟单极线路接地故障

得到不同极线布置方式在健全极线路上产生的过电压水平及分布情况

得出接地故障时最优的极导线排列方式。通过仿真分析了接地电阻

直流滤波器结构

直流线路安装避雷器以及线路参数等措施对直流过电压大小的影响。研究表明

改变直流滤波器结构

线路装设避雷器等措施可以有效的降低过电压水平。

Abstract

To understand the over-voltage level on 500 kV HVDC double-circuit transmission lines on the same tower due to the ground fault for different arrangement of conductors

and to reveal the influence of the DC overvoltage

a model of 500 kV HVDC transmission line based on concrete parameters is built by using the electromagnetic simulation software PSCAD.The over-voltage levels and distribution features on non-faulty pole with different arrangement of conductors are obtained by simulating DC line ground fault at one pole

and the best arrangement of conductors is recommended according to the simulation results.The influencing factors such as ground resistance

configuration of the DC filter and application of arresters are calculated and analyzed via simulation.The results indicate that the over-voltage level can be clearly reduced by adjusting configuration of the DC filter and applying arresters.

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