A novel fault line selection method based on empirical mode decomposition and differential spectrum
The paper proposed a novel single-phase grounding fault line selection method of small current grounding system based on EMD and differential spectrum. The method uses EMD method to decompose transient zero-sequence current and extract high-frequency IMF1 component of each line, obtained differentia...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Industry and Mine Automation
2013-02-01
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| Series: | Gong-kuang zidonghua |
| Subjects: | |
| Online Access: | http://www.gkzdh.cn/article/id/8956 |
| _version_ | 1797868546742550528 |
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| author | ZHENG Chen WANG Xiao-wei LIU Ya-juan TIAN Shu |
| author_facet | ZHENG Chen WANG Xiao-wei LIU Ya-juan TIAN Shu |
| author_sort | ZHENG Chen |
| collection | DOAJ |
| description | The paper proposed a novel single-phase grounding fault line selection method of small current grounding system based on EMD and differential spectrum. The method uses EMD method to decompose transient zero-sequence current and extract high-frequency IMF1 component of each line, obtained differential spectrum and fluctuation value of IMF1 component of each line according to definitions of differential spectrum and fluctuation value, and found out the fault line which has the maximum fluctuation value of IMF1 component by comparing fluctuation values of IMF1 component of each line. The experiment results showed that the method has higher accuracy of line selection and is suitable for fault line selection of small current grounding system under different grounding resistances and different fault initial phase angles. |
| first_indexed | 2024-04-09T23:58:43Z |
| format | Article |
| id | doaj.art-240b0b5e7e554f0dbba8d4c22e5a9c6e |
| institution | Directory Open Access Journal |
| issn | 1671-251X |
| language | zho |
| last_indexed | 2024-04-09T23:58:43Z |
| publishDate | 2013-02-01 |
| publisher | Editorial Department of Industry and Mine Automation |
| record_format | Article |
| series | Gong-kuang zidonghua |
| spelling | doaj.art-240b0b5e7e554f0dbba8d4c22e5a9c6e2023-03-17T01:59:07ZzhoEditorial Department of Industry and Mine AutomationGong-kuang zidonghua1671-251X2013-02-013927579A novel fault line selection method based on empirical mode decomposition and differential spectrumZHENG ChenWANG Xiao-weiLIU Ya-juanTIAN ShuThe paper proposed a novel single-phase grounding fault line selection method of small current grounding system based on EMD and differential spectrum. The method uses EMD method to decompose transient zero-sequence current and extract high-frequency IMF1 component of each line, obtained differential spectrum and fluctuation value of IMF1 component of each line according to definitions of differential spectrum and fluctuation value, and found out the fault line which has the maximum fluctuation value of IMF1 component by comparing fluctuation values of IMF1 component of each line. The experiment results showed that the method has higher accuracy of line selection and is suitable for fault line selection of small current grounding system under different grounding resistances and different fault initial phase angles.http://www.gkzdh.cn/article/id/8956small current grounding systemsingle-phase grounding faultfault line selectionempirical mode decompositionhigh-frequency imf1 componentdifferential spectrumfluctuation valuezero-sequence |
| spellingShingle | ZHENG Chen WANG Xiao-wei LIU Ya-juan TIAN Shu A novel fault line selection method based on empirical mode decomposition and differential spectrum Gong-kuang zidonghua small current grounding system single-phase grounding fault fault line selection empirical mode decomposition high-frequency imf1 component differential spectrum fluctuation value zero-sequence |
| title | A novel fault line selection method based on empirical mode decomposition and differential spectrum |
| title_full | A novel fault line selection method based on empirical mode decomposition and differential spectrum |
| title_fullStr | A novel fault line selection method based on empirical mode decomposition and differential spectrum |
| title_full_unstemmed | A novel fault line selection method based on empirical mode decomposition and differential spectrum |
| title_short | A novel fault line selection method based on empirical mode decomposition and differential spectrum |
| title_sort | novel fault line selection method based on empirical mode decomposition and differential spectrum |
| topic | small current grounding system single-phase grounding fault fault line selection empirical mode decomposition high-frequency imf1 component differential spectrum fluctuation value zero-sequence |
| url | http://www.gkzdh.cn/article/id/8956 |
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