| 摘要: |
| 参照国内现有研究成果与美国UL1699标准搭建串联电弧故障实验平台,采集电弧电流与电弧电压数据,根据FastICA分析所得的特征谐波,对分离所得独立分量与线路电流分别进行谐波含有率分析,对比电弧故障发生时的变化特性,总结出电弧故障发生时谐波含有率典型变化特征.研究结果表明：电弧发生时,FastICA分离之后独立分量的谐波含有率变化非常明显,而线路电流谐波含有率的增幅小很多,甚至在负载某些运行情况下,有些谐波含有率增幅为零. |
| 关键词: 电气火灾 电弧故障 信号分离 谐波含有率 特征提取 |
| DOI： |
| 分类号:TN911.7 |
| 基金项目:中央高校交叉学科培育基金“(JB-JC-1008);福建省科技计划项目高校产学合作科技重大项目(2012H61010012);福建省自然科学基金面上项目(2010J01294) |
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| Harmonic ratio analysis for series low voltage arc fault |
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LIAO Shui-rong1,ZHANG Ren-cheng1,LI Xia-he21,2
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1.College of Mechanical Engineering and Automation, Huaqiao University, Xiamen 361021;2.R&D Eight ,TCL Multimedia Global R&D Center,Shenzhen 518052
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| Abstract: |
| Series arc fault experiment platform was built with reference to the domestic existing research results and the United States UL1699 standards. The data of arc current and arc voltage were collected. According to the characteristic harmonics that was obtained by FastICA analysis, the separated independent component and wire’s current were analyzed by harmonic ratio respectively. When arc fault occurred, the typical variation characteristics of harmonic ratio was summed up. Research results show that: when arc fault occurred, the harmonic ratio of independent component change very obviously, but the harmonic ratio of wire’s current does not grow up by much. Even in load’s some running conditions, some harmonic ratio growth is zero. |
| Key words: electrical fire arc fault signal separating harmonic ratio feature extraction |
