Fault location scheme of HVDC converter based on fault loop analysis
In order to solve the problem that multiple faults in the converter area will trigger the valve short-circuit protection action, and the fault location cannot be directly located according to the protection action result, a novel converter fault location method based on fault loop analysis is propos...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2025-07-01
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| Series: | International Journal of Electrical Power & Energy Systems |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0142061525002522 |
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| _version_ | 1849321731134586880 |
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| author | Dalin Mu Guo Lei Tingwei Xu Haiqiang Zhang Xiaopeng Li Sheng Lin |
| author_facet | Dalin Mu Guo Lei Tingwei Xu Haiqiang Zhang Xiaopeng Li Sheng Lin |
| author_sort | Dalin Mu |
| collection | DOAJ |
| description | In order to solve the problem that multiple faults in the converter area will trigger the valve short-circuit protection action, and the fault location cannot be directly located according to the protection action result, a novel converter fault location method based on fault loop analysis is proposed. The fault characteristics of electrical quantity of 11 kinds of faults in the converter area under the valve short-circuit protection action are analyzed. It was found that the spatiotemporal difference of current and voltage under the converter valve blocking state is obvious when the faults occur in different locations. Based on this, a location criterion based on the integral feature of electrical quantity is designed to identify the fault positions in the converter area. The simulation model of a ± 800 kV UHVDC system is established. The verification results show that the proposed fault location method can accurately locate 11 typical faults in the converter area, which including AC side grounding/short-circuit faults, valve arm short-circuit faults, DC side grounding/short-circuit faults. The proposed method does not need to add additional measurement points, which has obvious engineering application prospects. |
| format | Article |
| id | doaj-art-88e45a54301d498bb06f46cbdfc10d9f |
| institution | Kabale University |
| issn | 0142-0615 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Electrical Power & Energy Systems |
| spelling | doaj-art-88e45a54301d498bb06f46cbdfc10d9f2025-08-20T03:49:41ZengElsevierInternational Journal of Electrical Power & Energy Systems0142-06152025-07-0116811070110.1016/j.ijepes.2025.110701Fault location scheme of HVDC converter based on fault loop analysisDalin Mu0Guo Lei1Tingwei Xu2Haiqiang Zhang3Xiaopeng Li4Sheng Lin5School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaSchool of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaState Grid Dangtu County Electric Power Supply Company, Maanshan 243100, ChinaNR Electric Company Ltd., Nanjing 100084, ChinaState Grid Dangtu County Electric Power Supply Company, Maanshan 243100, ChinaSchool of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China; Corresponding author.In order to solve the problem that multiple faults in the converter area will trigger the valve short-circuit protection action, and the fault location cannot be directly located according to the protection action result, a novel converter fault location method based on fault loop analysis is proposed. The fault characteristics of electrical quantity of 11 kinds of faults in the converter area under the valve short-circuit protection action are analyzed. It was found that the spatiotemporal difference of current and voltage under the converter valve blocking state is obvious when the faults occur in different locations. Based on this, a location criterion based on the integral feature of electrical quantity is designed to identify the fault positions in the converter area. The simulation model of a ± 800 kV UHVDC system is established. The verification results show that the proposed fault location method can accurately locate 11 typical faults in the converter area, which including AC side grounding/short-circuit faults, valve arm short-circuit faults, DC side grounding/short-circuit faults. The proposed method does not need to add additional measurement points, which has obvious engineering application prospects.http://www.sciencedirect.com/science/article/pii/S0142061525002522HVDC converterAhort-circuit faultGround faultShort-circuit protectionFault location |
| spellingShingle | Dalin Mu Guo Lei Tingwei Xu Haiqiang Zhang Xiaopeng Li Sheng Lin Fault location scheme of HVDC converter based on fault loop analysis International Journal of Electrical Power & Energy Systems HVDC converter Ahort-circuit fault Ground fault Short-circuit protection Fault location |
| title | Fault location scheme of HVDC converter based on fault loop analysis |
| title_full | Fault location scheme of HVDC converter based on fault loop analysis |
| title_fullStr | Fault location scheme of HVDC converter based on fault loop analysis |
| title_full_unstemmed | Fault location scheme of HVDC converter based on fault loop analysis |
| title_short | Fault location scheme of HVDC converter based on fault loop analysis |
| title_sort | fault location scheme of hvdc converter based on fault loop analysis |
| topic | HVDC converter Ahort-circuit fault Ground fault Short-circuit protection Fault location |
| url | http://www.sciencedirect.com/science/article/pii/S0142061525002522 |
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