| 低压串联电弧故障通用诊断方法的研究 |
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| 引用本文： | 郑昕,许志红. 低压串联电弧故障通用诊断方法的研究[J]. 电子测量与仪器学报, 2014, 0(9): 991-997 |
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| 作者姓名： | 郑昕 许志红 |
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| 作者单位： | 福州大学电气工程与自动化学院,福州350002 |
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| 基金项目： | 福建省自然科学基金（2011J01300）、福建省自然科学基金（2012J05087）、福建省教育厅科技（JA10026）项目 |
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| 摘 要： | 低压串联电弧故障是引发电气火灾的重要原因之一。利用MATLAB软件,建立基于CASSIE模型的低压串联电弧故障仿真电路,对单一和混合负载下的串联电弧故障电流波形进行小波变换的可视化分析,结合实测电弧故障电流研究了不同负载下电弧故障的共同特征,提出了基于小波分解细节分量阈值的通用诊断方法并利用LabVIEW软件编制了诊断程序,在线路供电端实现了对各类串联电弧故障的识别,为电弧故障通用诊断的实现和应用提供了理论依据和实验方法。
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| 关 键 词： | 电弧故障 小波变换 混合负载 通用诊断方法 |
Research on universal diagnostic method for low-voltage series arc fault |
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| Zheng Xin,Xu Zhihong. Research on universal diagnostic method for low-voltage series arc fault[J]. Journal of Electronic Measurement and Instrument, 2014, 0(9): 991-997 |
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| Authors: | Zheng Xin Xu Zhihong |
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| Affiliation: | 1.College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350002, China;) |
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| Abstract: | The low voltage series arc fault is one of most important reasons causing electrical fire accidents.In this paper,arc fault simulation circuits based on CASSIE model are built by using Matlab.The visual analysis of wavelet transformation for series arc fault current is discussed with single and mixed loads.The common characters of arc faults under variational loads are studied combined with the measured currents.The universal diagnostic method based on threshold value of detail component of wavelet transformation is presented and the diagnostic programm is built by using LabVIEW.The reconization of variational series arc fault on power supply line is realized and the theoretical basis and experimental mathods are provided for the universal diagnostic method about arc fault. |
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| Keywords: | arc fault wavelet transformation mixed loads universal diagnostic method |
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