Faulty Feeder Detection Method Based on VMD–FFT and Pearson Correlation Coefficient of Non-Power Frequency Component in Resonant Grounded Systems
Through analyzing the transient components and transient characteristics in transient zero-sequence current (TZSC), a novel fault feeder detection method based on the transient correlation of non-power frequency components (NPFCs) for the resonant grounded system is proposed. Firstly, using variatio...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-09-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/18/4724 |
| _version_ | 1797554029073530880 |
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| author | Kewen Wei Jing Zhang Yu He Gang Yao Yikun Zhang |
| author_facet | Kewen Wei Jing Zhang Yu He Gang Yao Yikun Zhang |
| author_sort | Kewen Wei |
| collection | DOAJ |
| description | Through analyzing the transient components and transient characteristics in transient zero-sequence current (TZSC), a novel fault feeder detection method based on the transient correlation of non-power frequency components (NPFCs) for the resonant grounded system is proposed. Firstly, using variational mode decomposition combined with fast Fourier transformation (VMD–FFT) to decompose the TZSC, by removing the power frequency components and noise signals, the transient NPFCs can be obtained. Secondly, to reflect the overall changing trend between faulty and healthy currents, the moving average filter is introduced to smooth the NPFCs; in this way, the fault transient features can be accurately revealed. Finally, the faulty feeder can be detected by comparing the threshold with the maximum difference value of comprehensive correlation coefficient of NPFCs. The detection results show that the proposed fault detection method can accurately select the faulty feeder; it is unaffected by fault resistances, fault phase angles, etc. Moreover, the detection method can resist noise interference. |
| first_indexed | 2024-03-10T16:25:57Z |
| format | Article |
| id | doaj.art-eb9aa2a9cf1e461aaa44108679f02d08 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T16:25:57Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-eb9aa2a9cf1e461aaa44108679f02d082023-11-20T13:19:02ZengMDPI AGEnergies1996-10732020-09-011318472410.3390/en13184724Faulty Feeder Detection Method Based on VMD–FFT and Pearson Correlation Coefficient of Non-Power Frequency Component in Resonant Grounded SystemsKewen Wei0Jing Zhang1Yu He2Gang Yao3Yikun Zhang4College of Electrical Engineering, Guizhou University, Guiyang 550025, ChinaCollege of Electrical Engineering, Guizhou University, Guiyang 550025, ChinaCollege of Electrical Engineering, Guizhou University, Guiyang 550025, ChinaGuizhou Power Grid Company, Guiyang 550001, ChinaCollege of Electrical Engineering, Guizhou University, Guiyang 550025, ChinaThrough analyzing the transient components and transient characteristics in transient zero-sequence current (TZSC), a novel fault feeder detection method based on the transient correlation of non-power frequency components (NPFCs) for the resonant grounded system is proposed. Firstly, using variational mode decomposition combined with fast Fourier transformation (VMD–FFT) to decompose the TZSC, by removing the power frequency components and noise signals, the transient NPFCs can be obtained. Secondly, to reflect the overall changing trend between faulty and healthy currents, the moving average filter is introduced to smooth the NPFCs; in this way, the fault transient features can be accurately revealed. Finally, the faulty feeder can be detected by comparing the threshold with the maximum difference value of comprehensive correlation coefficient of NPFCs. The detection results show that the proposed fault detection method can accurately select the faulty feeder; it is unaffected by fault resistances, fault phase angles, etc. Moreover, the detection method can resist noise interference.https://www.mdpi.com/1996-1073/13/18/4724resonant grounding systemfaulty feeder detectionvariational mode decompositionnon-power frequency componentcorrelation coefficient |
| spellingShingle | Kewen Wei Jing Zhang Yu He Gang Yao Yikun Zhang Faulty Feeder Detection Method Based on VMD–FFT and Pearson Correlation Coefficient of Non-Power Frequency Component in Resonant Grounded Systems Energies resonant grounding system faulty feeder detection variational mode decomposition non-power frequency component correlation coefficient |
| title | Faulty Feeder Detection Method Based on VMD–FFT and Pearson Correlation Coefficient of Non-Power Frequency Component in Resonant Grounded Systems |
| title_full | Faulty Feeder Detection Method Based on VMD–FFT and Pearson Correlation Coefficient of Non-Power Frequency Component in Resonant Grounded Systems |
| title_fullStr | Faulty Feeder Detection Method Based on VMD–FFT and Pearson Correlation Coefficient of Non-Power Frequency Component in Resonant Grounded Systems |
| title_full_unstemmed | Faulty Feeder Detection Method Based on VMD–FFT and Pearson Correlation Coefficient of Non-Power Frequency Component in Resonant Grounded Systems |
| title_short | Faulty Feeder Detection Method Based on VMD–FFT and Pearson Correlation Coefficient of Non-Power Frequency Component in Resonant Grounded Systems |
| title_sort | faulty feeder detection method based on vmd fft and pearson correlation coefficient of non power frequency component in resonant grounded systems |
| topic | resonant grounding system faulty feeder detection variational mode decomposition non-power frequency component correlation coefficient |
| url | https://www.mdpi.com/1996-1073/13/18/4724 |
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