| 引用本文: | 王晓远,高 淼,赵玉双.阻性负载下低压故障电弧特性分析[J].电力自动化设备,2015,35(5): |
| WANG Xiaoyuan,GAO Miao,ZHAO Yushuang.Characteristic analysis of low-voltage arc fault in resistive load conditions[J].Electric Power Automation Equipment,2015,35(5): |
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| 摘要: |
| 通过搭建串联电弧检测试验平台，在不同功率的阻性负载下，采集正常和发生串联故障电弧状态下的线路电流，并分析了电流的时域特征和频域特征，包括零休时间、电流上升率、平均值、有效值以及各奇次、偶次谐波因数等。分析结果表明，选择2~6次谐波因数及其变化率作为串联故障电弧的判据较为合理。 |
| 关键词: 电弧 断路器 阻性负载 时域分析 频域分析 傅里叶变换 谐波因数 谐波分析 |
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| Characteristic analysis of low-voltage arc fault in resistive load conditions |
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WANG Xiaoyuan, GAO Miao, ZHAO Yushuang
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School of Electrical Engineering and Automation，Tianjin University，Tianjin 300072，China
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| Abstract: |
| A test platform of series arc faults is constructed and the line current is acquired in normal and series arc fault conditions for different resistive load powers. The time- and frequency-domain characteristics of the line currents acquired are analyzed，including rising rate，average，RMS，arc interval，odd／even harmonic factors and so on. The analytical results show that，the 2 to 6-order harmonic factors and their variation rates should be selected as the criteria of series arc fault detection. |
| Key words: electric arcs electric breakers resistive load time domain analysis frequency domain analysis Fourier transforms harmonic factor harmonic analysis |
