Analysis of an Abnormal Voltage Accident of 500 kV Double-circuit Transmission Line on the Same Tower

KOU Xiaoshi; DONG Manling; YANG Xiaohui; DING Guojun

doi:10.13296/j.1001-1609.hva.2017.08.041

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Analysis of an Abnormal Voltage Accident of 500 kV Double-circuit Transmission Line on the Same Tower

更新时间：2025-04-26

- Analysis of an Abnormal Voltage Accident of 500 kV Double-circuit Transmission Line on the Same Tower
- High VoltageApparatus Vol. 53, Issue 8, Pages: 247-252(2017)
- 作者机构：
  
  国网河南省电力公司电力科学研究院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2017.08.041
  CLC： TM75
- Published：2017
- 稿件说明：
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[1]寇晓适,董曼玲,杨晓辉,丁国君.一起500 kV同塔双回输电线路电压异常分析[J].高压电器,2017,53(08):247-252.

KOU Xiaoshi, DONG Manling, YANG Xiaohui, et al. Analysis of an Abnormal Voltage Accident of 500 kV Double-circuit Transmission Line on the Same Tower[J]. High voltageapparatus, 2017, 53(8): 247-252.
[1]寇晓适,董曼玲,杨晓辉,丁国君.一起500 kV同塔双回输电线路电压异常分析[J].高压电器,2017,53(08):247-252. DOI： 10.13296/j.1001-1609.hva.2017.08.041.

KOU Xiaoshi, DONG Manling, YANG Xiaohui, et al. Analysis of an Abnormal Voltage Accident of 500 kV Double-circuit Transmission Line on the Same Tower[J]. High voltageapparatus, 2017, 53(8): 247-252. DOI： 10.13296/j.1001-1609.hva.2017.08.041.

摘要

谐振是一种稳定的状态

谐振过电压由于持续时间长危害性大

一旦发生

往往会造成电气设备的损坏和大面积的停电事故

因此需要重点关注及防范。文中介绍了一起因线路高抗与线路容抗因参数谐振造成的同塔双回输电线路电压异常事件。通过电压及电流仿真计算与故障波形的对比

分析了事件发生的原因。同时

为避免今后类似故障提出了建议。

Abstract

Resonance is a steady state

resonant overvoltage due to the long duration

its great harm.Once it happens

it will cause damage to electrical equipment and large area of power failure

so it needs to focus on and prevention.In this paper

an abnormal voltage accident of 500 kV double-circuit transmission line on the same tower caused by parametric resonance between high-voltage reactors and capacitive resistance is described.Through analysis of the fault waveform and simulation for fault current and fault voltage

the reason of this accident is verified. Finally

some measures are put forward in order to avoid similar accidents.

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