Series DC Arc Characteristic Study and the Application in Fault Recgnition

YAO Xiu1; JI Sheng-chang2; Luis Herrera1; WANG Jin1

doi:10.13296/j.1001-1609.hva.2012.05.003

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Series DC Arc Characteristic Study and the Application in Fault Recgnition

更新时间：2025-04-26

- Series DC Arc Characteristic Study and the Application in Fault Recgnition
- High VoltageApparatus Vol. 48, Issue 5, Pages: 6-10(2012)
- 作者机构：
  
  1. 美国俄亥俄州立大学高压与电力电子实验室
  2. 西安交通大学电力设备电气绝缘国家重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2012.05.003
  CLC： TM501.2
- Published：2012
- 稿件说明：
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[1]姚秀,汲胜昌,Luis Herrera,王瑾.串联直流电弧特性及其在故障诊断中的应用[J].高压电器,2012,48(05):6-10.

YAO Xiu1, JI Sheng-chang2, Luis Herrera1, et al. Series DC Arc Characteristic Study and the Application in Fault Recgnition[J]. High voltageapparatus, 2012, 48(5): 6-10.
[1]姚秀,汲胜昌,Luis Herrera,王瑾.串联直流电弧特性及其在故障诊断中的应用[J].高压电器,2012,48(05):6-10. DOI： 10.13296/j.1001-1609.hva.2012.05.003.

YAO Xiu1, JI Sheng-chang2, Luis Herrera1, et al. Series DC Arc Characteristic Study and the Application in Fault Recgnition[J]. High voltageapparatus, 2012, 48(5): 6-10. DOI： 10.13296/j.1001-1609.hva.2012.05.003.

摘要

直流电弧故障常常会威胁到各种电力电子系统的安全运行

由于其本身的随机性和不稳定性

直流电弧故障很难被有效地检测出来。笔者设计了一套串联直流电弧试验系统用以研究不同因素如负载电流、直流源电压以及电极间隙长度对直流电弧特性的影响。在试验中

负载电流在6

0 A之间变化

直流源电压在75

00 V之间变化。同时还进行了固定源电压和负载电流下不同间隙长度的试验以研究电弧长度对电弧特性的影响。根据以上试验结果

进行了初步的电弧电压—电流特性的研究。最后

通过对时间窗内电流变化率的分析

研究了电弧电流的脉冲模式。以上研究结果为直流电弧特性研究及直流电弧故障检测提供了重要的基础。

Abstract

DC arc fault introduces major safety concerns in a wide variety of power electronic applications.However

the randomness and instability of DC arc makes it difficult to be detected.In this paper

an experimental system to study the characteristics of series DC arc was designed and different tests were conducted in order to determine the influence of different factors to the arc such as gap length

current

etc.During the experiments

the load current was varied from 6 A to 30 A and DC source voltage was changed from 75 V to 300 V.Also

DC arc fixed power supply voltage and load current but changing gap length were conducted to examine the influence of arc length.Based on the experimental results

a primary U-I characteristics study was carried out.Current variation analysis was performed to investigate the pulse patterns of the arc current for detection purposes.The results of this paper provided insights of the dc arc characteristics as well as methods for DC arc fault detection.

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