Study of NBGS Suppression on Overvoltage Caused by Grounding Fault at the Top of High-voltage Valve

ZHANG Hao; WEI Yabo

doi:10.13296/j.1001-1609.hva.2015.07.021

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Study of NBGS Suppression on Overvoltage Caused by Grounding Fault at the Top of High-voltage Valve

更新时间：2025-04-26

- Study of NBGS Suppression on Overvoltage Caused by Grounding Fault at the Top of High-voltage Valve
- High VoltageApparatus Vol. 51, Issue 7, Pages: 107-111(2015)
- 作者机构：
  
  1. 平高集团有限公司
  2. 平顶山学院电气信息工程学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2015.07.021
  CLC： TM862
- Published：2015
- 稿件说明：
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[1]张豪,卫亚博.NBGS对阀顶接地故障引起过电压抑制作用的研究[J].高压电器,2015,51(07):107-111.

ZHANG Hao, WEI Yabo. Study of NBGS Suppression on Overvoltage Caused by Grounding Fault at the Top of High-voltage Valve[J]. High voltageapparatus, 2015, 51(7): 107-111.
[1]张豪,卫亚博.NBGS对阀顶接地故障引起过电压抑制作用的研究[J].高压电器,2015,51(07):107-111. DOI： 10.13296/j.1001-1609.hva.2015.07.021.

ZHANG Hao, WEI Yabo. Study of NBGS Suppression on Overvoltage Caused by Grounding Fault at the Top of High-voltage Valve[J]. High voltageapparatus, 2015, 51(7): 107-111. DOI： 10.13296/j.1001-1609.hva.2015.07.021.

摘要

依据向家坝—上海特高压直流输电示范工程实际设备参数建立了仿真分析模型

研究了换流站高压端换流阀顶端接地故障引起操作过电压的机理及分布规律

并分析了NBGS及其合闸延时对于过电压的抑制效果

对后续特高压直流输电工程中提出NBGS的技术要求有一定的指导意义。

Abstract

A system simulation model is built with the parameters from the Xiangjiaba-Shanghai HVDC Transmission Demonstration Project. The overvoltage generation mechanism and its distribution induced by grounding fault at the top of high-voltage valve are analyzed with the model. Moreover

the overvoltage suppression effect of NBGS action and its action delay are also analyzed. This study may be of help to the technical requirement of NBGS for the following HVDC project.

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