基于周期均值变化率的直流故障电弧检测

doi:10.11985/2016.09.006

电气工程学报 ›› 2016, Vol. 11 ›› Issue (9): 44-47.doi: 10.11985/2016.09.006

基于周期均值变化率的直流故障电弧检测

张冠英,李长伟,赵远,刘伯颖,李玲玲

河北工业大学电磁场与电器可靠性省部共建国家重点实验室培育基地天津 300130

收稿日期:2015-12-14 出版日期:2016-09-25 发布日期:2020-04-30
作者简介:张冠英, 女 1969年生,博士研究生,副教授,研究方向为电器可靠性及检测技术。|李长伟, 男 1988年生,硕士研究生,研究方向为电器可靠性及检测技术。
基金资助:
国家自然科学基金(51475136);河北省科技支撑计划(15212117);和河北省高等学校科学技术研究青年基金资助项目(QN2015102)

Series DC Arcing Fault Detection Method Based on Rate of Cycle Mean

Guanying Zhang,Changwei Li,Yuan Zhao,Boying Liu,Lingling Li

Province-Ministry Joint Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability, Hebei University of Technology Tianjin 300130 China

Received:2015-12-14 Online:2016-09-25 Published:2020-04-30

摘要/Abstract

摘要：

直流供电系统中,接头松动、绝缘老化等原因是引起直流串联电弧故障的主要因素,且串联直流电弧不易检测,具有很大的安全隐患,因此提出一种有效的直流电弧故障检测方法具有重大的意义。本文搭建了串联直流电弧试验平台,利用串联直流电弧发生器模拟直流电路中接头松动、绝缘损坏的直流串联电弧故障。通过研究直流电弧电压电流的基本特性,以及国内外的研究现状,研究分析电弧电流波形在一定时间窗内周期均值的变化,提出了一种基于电弧电流周期均值变化率的检测方法。结果表明,发生电弧前后电弧电流周期均值变化率具有明显区别,验证了用电弧电流周期均值变化率识别直流电弧故障的可行性。

关键词: 直流串联电弧, 电弧电流周期均值, 故障电弧检测, 周期均值变化率

Abstract:

Aging of the insulation and loose joint in the DC supply system are main factors to induce series DC arc.The series DC arc fault is difficult to be detected ,posing a serious risk to the system. Therefore,it is of great significance to find a kind of method of the DC arc fault detection . In this paper, the series DC arc is simulated by the series DC arc generator. And a detection method based on the rate of DC arc current cycle mean is proposed by studying the basic characteristic of the series DC arc current and status quo of research both at home and abroad. The rate of DC arc current cycle mean is quite different when the arc happens or not happen.The result shows that the method is feasible to detect the series DC arc fault.

Key words: Series DC arcing, DC arc current cycle mean, detection of DC arc fault, the rate of DC arc current cycle mean

中图分类号:

TM501+.2

张冠英,李长伟,赵远,刘伯颖,李玲玲. 基于周期均值变化率的直流故障电弧检测[J]. 电气工程学报, 2016, 11(9): 44-47.

Guanying Zhang,Changwei Li,Yuan Zhao,Boying Liu,Lingling Li. Series DC Arcing Fault Detection Method Based on Rate of Cycle Mean[J]. Journal of Electrical Engineering, 2016, 11(9): 44-47.

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基于周期均值变化率的直流故障电弧检测

Series DC Arcing Fault Detection Method Based on Rate of Cycle Mean

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