Influence of MOV Parallel Units Number Change on the Series Compensator

doi:10.14044/j.1674-1757.pcrpc.2019.05.005

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Influence of MOV Parallel Units Number Change on the Series Compensator

更新时间：2024-09-14

- Influence of MOV Parallel Units Number Change on the Series Compensator
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 40, Issue 5, Pages: 25-30(2019)
- 作者机构：
  
  1. 南瑞集团(国网电力科学研究院)有限公司
  2. 中电普瑞科技有限公司
  3. 国网冀北电力有限公司电力科学研究院
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2019.05.005
  CLC： TM761.12
- Published：2019，
- 稿件说明：
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[1]杨尚瑾,金雪芬,王媛媛,彭珑,马鑫晟.MOV并联单元数变化对串补装置的影响[J].电力电容器与无功补偿,2019,40(05):25-30.

Influence of MOV Parallel Units Number Change on the Series Compensator. [J]. Power capacitor & reactive power compensation, 2019, 40(5): 25-30.
[1]杨尚瑾,金雪芬,王媛媛,彭珑,马鑫晟.MOV并联单元数变化对串补装置的影响[J].电力电容器与无功补偿,2019,40(05):25-30. DOI： 10.14044/j.1674-1757.pcrpc.2019.05.005.

Influence of MOV Parallel Units Number Change on the Series Compensator. [J]. Power capacitor & reactive power compensation, 2019, 40(5): 25-30. DOI： 10.14044/j.1674-1757.pcrpc.2019.05.005.

摘要

为保护电容器组

串联补偿（简称"串补"）装置一般会配置金属氧化物限压器（metal oxide varistor

MOV）。串补运行过程中

MOV单元可能损坏

如果在备用单元损坏的基础上

又有MOV单元减少

可能会危害串补的安全稳定运行。本文结合神保串补工程

分析了MOV并联单元减少对串补装置的影响

具体包括以下几个方面:摇摆电流下MOV可靠性;现有MOV电流及能耗保护定值的适用性;串补装置保护水平;MOV容量配置合理性;电容器组放电过程中装置可靠性。本文得出了相应的分析结果

并给出了应对策略。

Abstract

In order to protect the capacitor bank

metal oxide varistor（MOV）is commonly used in series compensation. During the operation of series compensation

the MOV units may be damaged. If there is a reduction in the number of MOV units on the basis of damage to the backup unit

it may affect the safe operation of the series compensation. In this paper

the effect of the reduction of MOV units on the series compensator is analyzed

including the following aspects:MOV reliability under swing current;the applicability of MOV current and energy protection setting values;protective level of series compensator. rationality of MOV capacity configuration;the reliability of the devices during the discharge process of the capacitor bank.Inthispaper

the corresponding analysis results are obtained

and the countermeasures are given.

关键词

串联补偿电容器金属氧化物限压器（MOV）并联单元

Keywords

series compensationcapacitormetal oxide varistor（MOV）parallel unit

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ZHU Ling-yu1

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DAI Chao-bo2

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Related Institution

State Key Laboratory of Electrical Insulation for Power Equipment,Xi’an Jiaotong University

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