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Cao Fengmei,Su Peipu(North China Electric Power University,100085,Beijing,China)  
How to detect earth-fault quickly and accurately is an important subject in distribution automation system.Because the neutral point in distribution automation system is not grounded directly,the transient status of fault-voltage and current last only for a short time but comprise abundant characteristic values when earth-fault happens.On the other hand,the static value is very small,so choosing a new theory to analyze the transient value will enhance the ability of earth-fault relaying.Wavelet analysis over comes the shortcoming of Fourier transform in the term of time-frequency analysis.It has strong ability to abstract the character of signal,especially in analyzing the transient signal or faint signal.The paper uses the declining and oscillating wavelet function into the earth-fault detection of distribution automation system.The analysis of the data from EMTP proves that the proposed method can enhance the ability of relaying greatly.
【CateGory Index】: TM773
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2 Qian Hong Huang Zhengrun Ruan Dabing (School of Electric Power and Automation Engineering of Shanghai University of Electric Power, Shanghai 200090);The Study of Fault Line Selection’s Method Based on the Change Rate of Transient Zero Sequence Current for Small Current Grounding System[J];电气技术;2013-02
3 GUO Moufa,YANG Gengjie,HUANG Shiyuan(College of Electrical Engineering and Automation,Fuzhou University,Fuzhou 350108,China);Adaptive faulty line selection based on transient characteristics for resonant earthing system[J];电力自动化设备;2012-10
4 LIANG Rui1,2,WANG Chong-lin2,WANG Yang-yang2(1.State Key Laboratory of Power Transmission Equipment & System Security and New Technology(Chongqing University),Chongqing 400044,China;2.School of Information and Electrical Engineering,China University of Mining and Technology,Xuzhou 221008,China);Identification method of single-phase earth fault type in coalmine power system based on multi-fractal theory[J];煤炭学报;2012-S1
5 ZHANG Feng1,LIANG Jun1,GAO Hong-mei2,PAN Meng3(1.School of Electrical Engineering,Shandong University,Jinan 250061,China;2.Binzhou Electric Power Corporation, Binzhou 256600,China;3.Boxing Electric Power Corporation,Binzhou 256500,China);Adaptive fault line selection method based on a multi-scale frequency signal in non-solid earthed network[J];山东大学学报(工学版);2012-02
6 CHEN Shao-hua,YIN Sheng-lan,MO Zhe(Faculty of Automation,Guangdong University of Technology,Guangzhou 510006,China);Fault line detection in indirectly grounding power system based on wavelet analysis improved by immune RBF network[J];电力系统保护与控制;2012-03
7 WANG Bo,YU Chuan-kun,YE Jun,BAI Yang(School of Electrical Engineering,Wuhan University 430072,China);Fault Line Selection Method for Single Phase-to-ground Faults of Multi-criteria Information Integrated with Lower Current Grounding Power System Based on Fuzzy Theory[J];广东电力;2011-09
8 YU Ran,FU Zhou-xing,WANG Qing-liang,WANG Song-bo, SUN Shang-bin,CHEN Hai-dong(College of Electrical and Control Engineering,Xi'an University of Science and Technology,Xi'an 710054,China);Modeling Simulation and Fault Analysis of Arc Based on MATLAB[J];高压电器;2011-09
9 SHAO Bao-zhu SONG Dan WANG You-yin;Fault Line Selection of Single-phase Grounding in Low Current Grounding System[J];东北电力技术;2010-08
China Proceedings of conference Full-text Database 1 Hits
1 ;小电流接地系统故障选线方案综述[A];[C];2005
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2 LI Dan~1,XU Zhi-gang~2 (1.Three Gorges University,Yichang 443002,China;2.Yichang EHV Administration,Yichang 443000,China);A New Method of Faulty Line Selection for Small Current Neural Grounded System[J];陕西电力;2010-04
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5 ZHANG Kai, YUAN Zhao-qiang, FAN Li-ping (College of Electrical Engineering & Information Technology,Three Gorges University, Yichang 443002,China);Research on improving algorithm of the fault line selection device based on the rough set theory[J];电力系统保护与控制;2010-04
6 GUO Qing-tao1,WU Tian2 (1.Fujian Electric Power Test & Research Institute,Fuzhou 350007,China;2.Department of Electrical Engineering,Wuhan University,Wuhan 430072,China);Survey of the methods to select fault line in neutral point ineffectively grounded power system[J];电力系统保护与控制;2010-02
7 SHU Hongchun1,PENG Shixin2 (1. Faculty of Electric Power Engineering,Kunming University of Science and Technology, Kunming 650051,China;2. Kunming Power Supply Bureau in Yunnan Power Grid, Kunming 650011,China);Faulty line detection by relative energy method for hybrid transmission lines[J];电力自动化设备;2009-11
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9 ZHANG Yanxia1,WANG Qingliang2(1.Key Laboratory of Power System Simulation and Control of Ministry of Education,Tianjin University,Tianjin 300072,China;2.Xi'an University of Science and Technology,Xi'an 710054,China);New Method for Single-phase-to-ground Fault Feeder Selection Based on Analysis of Fault Transient Characteristics[J];电力系统自动化;2009-16
10 MOU Long-hua,ZHOU Wei,YUE Qing-yu(Department of Electrical Engineering,Tongji University,Shanghai 201804,China);Research on grounding method of arc-suppression coil with parallel or serial resistance and ground-fault protection principle[J];煤炭学报;2009-08
【Secondary References】
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2 Wang Junqiao;Duan Wenzhi;Wang Wanzhang;Wu Weili;Liu Yong;Urumqi petrochemical branch of China petroleum and natural gas CO., LTD;Anhui Zhengguang Power Technology CO., LTD;;Simulation Study of Single-phase Arc Fault Based on Variable Gap Arc Model[J];当代化工研究;2017-07
3 Chen Houhe;Wang Changjiang;Jiang Tao;Li Xue;Li Guoqing;School of Electrical Engineering Northeast Electric Power University;;Transient Stability Assessment in Bulk Power Grid Using Projection Energy Function and Support Vector Machine with Pinball Loss[J];电工技术学报;2017-11
4 GUAN Yuhang;LI Juan;QIN Yanhui;LIU Yong;YUAN Tiejiang;School of Electrical Engineering,Xinjiang University;State Grid Xinjiang Electric Economy and Technology Research Institute;State Grid Xinjiang Electric Power Research Institute;Anhui Zhengguang Electric Technology Co.,Ltd.;;Simulation Modeling of Arc Grounding Fault in Distribtion Network Based on ADPSS[J];电力电容器与无功补偿;2016-06
5 LI Jiannan;ZHANG Huiyuan;WANG Xianhua;GONG Renmin;North China Electric Power University;Bayannaoer Electric Power Bureau of Electric Company of Inner Mongolia;Beijing Joinbright Digital Power Technology Co.,Ltd.;;Arc modeling and simulation of the ground faults of the middle voltage cable network[J];电力系统保护与控制;2016-24
6 DENG Chaoping;WANG Yuhong;LIN Guodong;FENG Xuemin;SHI Jiyin;HU Wenwang;GONG Hong;State Grid Fujian Electric Power Research Institute;School of Electrical Engineering and Information,Sichuan University;;Research on Start Criterion of DC Circuit Breaker Based on Wavelet Transform[J];高压电器;2016-10
7 ZHAO Jianwen;LIU Yongjia;LIANG Jing;HUANG Yongping;School of Electrical and Control Engineering,Xi'an University of Science and Technology;;Fault Line Selection Based on Improved Fast ICA and Romanovsky Guidelines[J];中国电机工程学报;2016-19
8 TANG Tao;HUANG Chun;JIANG Yaqun;LUO Xunhua;XIE Xing;LIU Penghui;College of Electrical and Information Engineering,Hunan University;;Fault Line Selection Method in Resonant Earthed System Based on Transient Signal Correlation Analysis Under High and Low Frequencies[J];电力系统自动化;2016-16
9 ;Fault causes analysis of 35 kV busbar short-circuit for Dongtang substation[J];湖南电力;2016-04
10 CHEN Bobo;QU Weifeng;YANG Hongyu;WU Lei;School of Information and Electrical Engineering, China University of Mining and Technology;Lianyungang Power Supply Company of Jiangsu Province;;Research on single phase grounding arc model and line selection for neutral ineffectively grounding system[J];电力系统保护与控制;2016-16
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