Influence of High Voltage Shunt Reactor Overcompensation on the Electromagnetic Transient of 500 kV Transmission Line

LI Zhenqiang; LIU Haoxin; LOU Ying

doi:10.13296/j.1001-1609.hva.2015.05.010

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Influence of High Voltage Shunt Reactor Overcompensation on the Electromagnetic Transient of 500 kV Transmission Line

更新时间：2025-04-26

- Influence of High Voltage Shunt Reactor Overcompensation on the Electromagnetic Transient of 500 kV Transmission Line
- High VoltageApparatus Vol. 51, Issue 5, Pages: 53-58(2015)
- 作者机构：
  
  1. 中国电力科学研究院
  2. 广东电网公司佛山供电局
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2015.05.010
  CLC： TM75
- Published：2015
- 稿件说明：
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[1]李振强,刘昊昕,娄颖.高抗过补偿对500kV输电线路电磁暂态的影响研究[J].高压电器,2015,51(05):53-58.

LI Zhenqiang, LIU Haoxin, LOU Ying. Influence of High Voltage Shunt Reactor Overcompensation on the Electromagnetic Transient of 500 kV Transmission Line[J]. High voltageapparatus, 2015, 51(5): 53-58.
[1]李振强,刘昊昕,娄颖.高抗过补偿对500kV输电线路电磁暂态的影响研究[J].高压电器,2015,51(05):53-58. DOI： 10.13296/j.1001-1609.hva.2015.05.010.

LI Zhenqiang, LIU Haoxin, LOU Ying. Influence of High Voltage Shunt Reactor Overcompensation on the Electromagnetic Transient of 500 kV Transmission Line[J]. High voltageapparatus, 2015, 51(5): 53-58. DOI： 10.13296/j.1001-1609.hva.2015.05.010.

摘要

分析了线路高抗过补偿对500 kV输电线路电磁暂态的影响

采用EMTP程序模拟计算了3种高抗过补偿度下（105%/131%/158%）500 kV同塔双回线路的非全相工频谐振过电压、潜供电流和恢复电压、一回线路停运时的感应电压和感应电流。通过研究指出

高抗补偿度小于130%时

尤其是在全补偿附近

线路非全相谐振过电压较高

潜供电流和恢复电压、感应电压和电流较大

可能会影响到单相重合闸的时间和接地开关的选型。当高抗过补偿度高于130%时

一般不会出现上述问题。

Abstract

The influence of shunt reactor overcompensation on 500 kV transmission line electromagnetic transient is analyzed

and EMTP program is employed to calculate the open-phase power frequency resonance overvoltage

the secondary arc current and recovery voltage

and the inducted voltage and current in the case of one circuit stopping for a 500 kV double-circuit transmission line under three reactor compensations（105%/131%/158%）. It is indicated that when the reactor compensation is lower than 130%

especially nearby 100%

the line’s open-phase power frequency resonance overvoltage

the secondary arc current and recovery voltage

and the induced voltage and current get large

which may affect the single-phase reclosing time and the type-selection of earthing switch.Higher reactor compensation than 130% can prevent the negative influence.

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