On-Line Detection Method of Series Arc Faults Based on Time Difference Variation

doi:10.16628/j.cnki.2095-8188.2025.09.002

Abstract

Abstract:

The detection of series arc faults is greatly affected by the type of load,and traditional fault detection methods that use current characteristics have the difficulty of setting threshold criteria. In response to this issue,an online detection method for series arc faults based on the time difference variation of load side voltage is proposed.By identifying the presence of fault arc voltage in the circuit, the arc fault detection is achieved. By using the adjacent wave inspection mode,the suspected arc fault voltage fault signal is detected,and then the reference waveform detection mode is triggered to confirm the arc fault.The test results show that the success rate of identifying the number of fault arcs of various loads is more than 95%. With the development of power Internet of Things and smart home technology, the proposed method provides a new idea for series arc fault detection.

Key words: series arc fault, arc voltage, time difference variation, terminal voltage, voltage change ratio

CLC Number:

TM501.2

PAN Yiyong, WANG Wei. On-Line Detection Method of Series Arc Faults Based on Time Difference Variation[J]. LOW VOLTAGE APPARATUS, 2025, 0(9): 13-26.

Figures/Tables 33

References 18

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负载类型	平均识别成功率/%	启动检测模式所需平均(最大)时间/ms
电暖器	98.5	11(20)
吸尘器	96.3	12(20)
微波炉	96.8	13(20)
电磁炉	96.2	13(20)
计算机	97.8	12(20)
电暖器、吸尘器	98.6	11(20)
电磁炉、吸尘器	97.8	13(20)
微波炉、计算机	98.2	12(20)

负荷类型	准确率
负荷类型	本文方法	小波系数法	电压差均值法
电暖器	98.5	71.6	64.7
电磁炉	96.2	36.4	95.1
微波炉	96.8	82.8	92.6
吸尘器	96.3	85.3	77.1
计算机	97.8	99.5	96.8