电工技术学报  2019, Vol. 34 Issue (14): 2901-2912    DOI: 10.19595/j.cnki.1000-6753.tces.190166
电机与电器 |
一种串联型故障电弧数学模型
刘艳丽1, 郭凤仪1, 李磊2, 王智勇1, 王喜利1
1. 辽宁工程技术大学电气与控制工程学院 葫芦岛 125105 ;
2. 葫芦岛市产品质量监督检验所 葫芦岛 125000
A Kind of Series Fault Arc Mathematical Model
Liu Yanli1, Guo Fengyi1, Li Lei2, Wang Zhiyong1, Wang Xili1
1. Faculty of Electrical and Control Engineering Liaoning Technical UniversityHuludao 125105 China;
2. Product Quality Supervision and Inspection Institute Huludao 125000 China
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摘要 串联型故障电弧威胁着供电系统的供电安全。因矿井等供电系统存在易燃易爆物质,不宜现场开展串联型故障电弧实验,无法大量获得故障电弧样本。为了对不宜开展故障电弧现场实验的供电系统进行串联型故障电弧特征分析及故障诊断,该文首先在实验室开展大量串联型故障电弧实验,通过数值分析获得不同实验条件下的Mayr-Schwarz电弧数学模型参数:电弧时间常数系数τm、常量α、电弧耗散功率常数系数Ps、常量β、电弧电导g;然后再对实验条件与电弧数学模型参数进行灰色关联度分析,建立预测不同电路条件下串联型故障电弧数学模型参数的神经网络黑箱模型;在此基础建立串联型故障电弧的数学模型,并对故障电弧进行仿真分析;最后对比分析实验结果及仿真结果,验证了基于神经网络黑箱模型的串联型故障电弧数学模型的有效性。研究成果对不宜开展现场实验的供电系统开展串联型故障电弧诊断工作具有积极意义。
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刘艳丽
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李磊
王智勇
王喜利
关键词 串联型故障电弧神经网络数学模型仿真分析    
Abstract:Series fault arc threatens supply safety of power the system. It is inappropriate to carry out series arc fault field test due to existence of flammable and explosive substances such as gas and coal dust. Therefore, we can’t obtain a large number of fault arc sample data. To analyze and diagnose the series fault arc occurred in special power supply system, which is unsuitable for fault arc field experiment, the following work was carried out. Firstly, lots of series fault arc experiments were carried out in the laboratory. The parameters of Mayer-Schwarz arc mathematical model: under different experimental conditions including arc time constant coefficient τm, constant α, arc dissipation power constant coefficient Ps, constant β, and arc initial conductance g obtained by numerical analysis. Secondly, after analyzing the grey correlational degree between experimental conditions and arc mathematical model parameters was analyzed. A neural network black box model was established to predict series fault arc mathematical model parameters under different circuit conditions. Thirdly, a mathematical model of series fault arc was established. And fault arc simulation was analyzed. Finally, the validity of the series fault arc mathematical model was verified by comparing experimental and simulation results. The research has a positive significance on fault diagnosis of series fault arc in power supply system which is not suitable for field experiments.
Key wordsSeries fault arc    neural network    mathematical model    simulation analysis   
收稿日期: 2019-02-17      出版日期: 2019-07-29
PACS: TM501  
基金资助:国家自然科学基金(51674136)、辽宁省“兴辽英才计划”科技创新领军人才(特聘教授)项目(XLYC1802110)和辽宁省教育厅青年基金(LJ2017QL010)资助项目
通讯作者: 刘艳丽 女,1981年生,博士,讲师,研究方向为电接触理论及应用。E-mail:liuyanli19810919@163.com   
作者简介: 郭凤仪 男,1964年生,教授,博士生导师,研究方向为电接触理论及应用。E-mail:fyguo64@126.com;
引用本文:   
刘艳丽, 郭凤仪, 李磊, 王智勇, 王喜利. 一种串联型故障电弧数学模型[J]. 电工技术学报, 2019, 34(14): 2901-2912. Liu Yanli, Guo Fengyi, Li Lei, Wang Zhiyong, Wang Xili. A Kind of Series Fault Arc Mathematical Model. Transactions of China Electrotechnical Society, 2019, 34(14): 2901-2912.
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