High-Resistance Grounding Fault Detection and Line Selection in Resonant Grounding Distribution Network
The detection and selection of fault lines in resonant grounding distribution networks pose challenges due to the lack of sufficient state parameters and data. This paper proposes an approach to overcome these limitations by reconstructing the initial criterion for fault occurrence and fault line se...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-09-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/12/19/4066 |
| _version_ | 1797575987829932032 |
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| author | Dong Yang Baopeng Lu Huaiwei Lu |
| author_facet | Dong Yang Baopeng Lu Huaiwei Lu |
| author_sort | Dong Yang |
| collection | DOAJ |
| description | The detection and selection of fault lines in resonant grounding distribution networks pose challenges due to the lack of sufficient state parameters and data. This paper proposes an approach to overcome these limitations by reconstructing the initial criterion for fault occurrence and fault line selection. Firstly, a combination of 15% of the traditional phase voltage and the sum of the zero-sequence voltage gradient is suggested as the initial criterion for fault occurrence. This improves the speed of the line selection device. Additionally, the transient process of high-resistance grounding in a resonant grounding system is analyzed based on the impedance characteristics of high- and low-frequency lines. The line selection criterion is then established by comparing the current and voltage derivative waveforms on high- and low-frequency lines. To verify the effectiveness of the proposed method, simulations are conducted. The results demonstrate that this method can effectively handle high-resistance grounding faults under complex conditions while meeting the required speed for line selection. |
| first_indexed | 2024-03-10T21:46:26Z |
| format | Article |
| id | doaj.art-318bd1feb3b7483b936d400393ab44de |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-10T21:46:26Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-318bd1feb3b7483b936d400393ab44de2023-11-19T14:16:45ZengMDPI AGElectronics2079-92922023-09-011219406610.3390/electronics12194066High-Resistance Grounding Fault Detection and Line Selection in Resonant Grounding Distribution NetworkDong Yang0Baopeng Lu1Huaiwei Lu2School of Automation and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, ChinaSchool of New Energy and Power Engineering, Lanzhou Jiaotong University, Lanzhou 730070, ChinaSchool of Automation and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, ChinaThe detection and selection of fault lines in resonant grounding distribution networks pose challenges due to the lack of sufficient state parameters and data. This paper proposes an approach to overcome these limitations by reconstructing the initial criterion for fault occurrence and fault line selection. Firstly, a combination of 15% of the traditional phase voltage and the sum of the zero-sequence voltage gradient is suggested as the initial criterion for fault occurrence. This improves the speed of the line selection device. Additionally, the transient process of high-resistance grounding in a resonant grounding system is analyzed based on the impedance characteristics of high- and low-frequency lines. The line selection criterion is then established by comparing the current and voltage derivative waveforms on high- and low-frequency lines. To verify the effectiveness of the proposed method, simulations are conducted. The results demonstrate that this method can effectively handle high-resistance grounding faults under complex conditions while meeting the required speed for line selection.https://www.mdpi.com/2079-9292/12/19/4066resonant grounding distribution networkhigh-resistance groundingfault line selectionzero-sequence voltage gradient sumzero-sequence current |
| spellingShingle | Dong Yang Baopeng Lu Huaiwei Lu High-Resistance Grounding Fault Detection and Line Selection in Resonant Grounding Distribution Network Electronics resonant grounding distribution network high-resistance grounding fault line selection zero-sequence voltage gradient sum zero-sequence current |
| title | High-Resistance Grounding Fault Detection and Line Selection in Resonant Grounding Distribution Network |
| title_full | High-Resistance Grounding Fault Detection and Line Selection in Resonant Grounding Distribution Network |
| title_fullStr | High-Resistance Grounding Fault Detection and Line Selection in Resonant Grounding Distribution Network |
| title_full_unstemmed | High-Resistance Grounding Fault Detection and Line Selection in Resonant Grounding Distribution Network |
| title_short | High-Resistance Grounding Fault Detection and Line Selection in Resonant Grounding Distribution Network |
| title_sort | high resistance grounding fault detection and line selection in resonant grounding distribution network |
| topic | resonant grounding distribution network high-resistance grounding fault line selection zero-sequence voltage gradient sum zero-sequence current |
| url | https://www.mdpi.com/2079-9292/12/19/4066 |
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