Zero-sequence compensation method of line longitudinal current differential protection based on 5G distribution network
Aiming at the problem that the longitudinal current fault of distribution network lines affects the normal power supply, a zero-sequence compensation method of line longitudinal current differential protection based on 5G distribution network is proposed to improve the effect of current differential...
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| Format: | Article |
| Language: | zho |
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Harbin Jinhe Electrical Measurement & Instrumentation Magazine Publishing Co., Ltd.
2025-04-01
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| Series: | Diance yu yibiao |
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| Online Access: | http://www.emijournal.net/dcyyben/ch/reader/create_pdf.aspx?file_no=20220614002&flag=1&journal_id=dcyyben&year_id=2025 |
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| author | XU Rui YU Yuexiang LI Xiao JIN Yechen ZHAO Fang |
| author_facet | XU Rui YU Yuexiang LI Xiao JIN Yechen ZHAO Fang |
| author_sort | XU Rui |
| collection | DOAJ |
| description | Aiming at the problem that the longitudinal current fault of distribution network lines affects the normal power supply, a zero-sequence compensation method of line longitudinal current differential protection based on 5G distribution network is proposed to improve the effect of current differential protection under different fault conditions. According to the characteristics of 5G distribution network, the differential protection architecture of distribution network is constructed. Combined with the principle of differential protection, the problem of line capacitive current in 5G distribution network under the two protection actions of no capacitive current compensation and capacitive current compensation is analyzed, and the action threshold under different protection actions is set to complete the zero-sequence compensation of longitudinal current differential protection. The experimental results show that the proposed method has good current differential zero-sequence compensation effect under different fault types. After compensation, the current differential change is small, the maximum amplitude of current fluctuation does not exceed 150 A, and the sensitivity of current differential protection is high. It can select appropriate differential protection action according to different faults. |
| format | Article |
| id | doaj-art-bb6de3d7d5904378b889139990bd0f8b |
| institution | OA Journals |
| issn | 1001-1390 |
| language | zho |
| publishDate | 2025-04-01 |
| publisher | Harbin Jinhe Electrical Measurement & Instrumentation Magazine Publishing Co., Ltd. |
| record_format | Article |
| series | Diance yu yibiao |
| spelling | doaj-art-bb6de3d7d5904378b889139990bd0f8b2025-08-20T02:27:45ZzhoHarbin Jinhe Electrical Measurement & Instrumentation Magazine Publishing Co., Ltd.Diance yu yibiao1001-13902025-04-0162410511210.19753/j.issn1001-1390.2025.04.0131001-1390(2025)04-0105-08Zero-sequence compensation method of line longitudinal current differential protection based on 5G distribution networkXU Rui0YU Yuexiang1LI Xiao2JIN Yechen3ZHAO Fang4Hangzhou Xiaoshan Power Supply Company, State Grid Zhejiang Electric Power Co., Ltd., Xiaoshan 311200, Zhejiang, ChinaHangzhou Xiaoshan Power Supply Company, State Grid Zhejiang Electric Power Co., Ltd., Xiaoshan 311200, Zhejiang, ChinaHangzhou Xiaoshan Power Supply Company, State Grid Zhejiang Electric Power Co., Ltd., Xiaoshan 311200, Zhejiang, ChinaHangzhou Xiaoshan Power Supply Company, State Grid Zhejiang Electric Power Co., Ltd., Xiaoshan 311200, Zhejiang, ChinaSchool of Electrical Engineering, Zhejiang University, Hangzhou 310063, ChinaAiming at the problem that the longitudinal current fault of distribution network lines affects the normal power supply, a zero-sequence compensation method of line longitudinal current differential protection based on 5G distribution network is proposed to improve the effect of current differential protection under different fault conditions. According to the characteristics of 5G distribution network, the differential protection architecture of distribution network is constructed. Combined with the principle of differential protection, the problem of line capacitive current in 5G distribution network under the two protection actions of no capacitive current compensation and capacitive current compensation is analyzed, and the action threshold under different protection actions is set to complete the zero-sequence compensation of longitudinal current differential protection. The experimental results show that the proposed method has good current differential zero-sequence compensation effect under different fault types. After compensation, the current differential change is small, the maximum amplitude of current fluctuation does not exceed 150 A, and the sensitivity of current differential protection is high. It can select appropriate differential protection action according to different faults.http://www.emijournal.net/dcyyben/ch/reader/create_pdf.aspx?file_no=20220614002&flag=1&journal_id=dcyyben&year_id=20255g-based distribution networklongitudinal currentdifferential protectionzero-sequence compensationfault component differentialsensitivity |
| spellingShingle | XU Rui YU Yuexiang LI Xiao JIN Yechen ZHAO Fang Zero-sequence compensation method of line longitudinal current differential protection based on 5G distribution network Diance yu yibiao 5g-based distribution network longitudinal current differential protection zero-sequence compensation fault component differential sensitivity |
| title | Zero-sequence compensation method of line longitudinal current differential protection based on 5G distribution network |
| title_full | Zero-sequence compensation method of line longitudinal current differential protection based on 5G distribution network |
| title_fullStr | Zero-sequence compensation method of line longitudinal current differential protection based on 5G distribution network |
| title_full_unstemmed | Zero-sequence compensation method of line longitudinal current differential protection based on 5G distribution network |
| title_short | Zero-sequence compensation method of line longitudinal current differential protection based on 5G distribution network |
| title_sort | zero sequence compensation method of line longitudinal current differential protection based on 5g distribution network |
| topic | 5g-based distribution network longitudinal current differential protection zero-sequence compensation fault component differential sensitivity |
| url | http://www.emijournal.net/dcyyben/ch/reader/create_pdf.aspx?file_no=20220614002&flag=1&journal_id=dcyyben&year_id=2025 |
| work_keys_str_mv | AT xurui zerosequencecompensationmethodoflinelongitudinalcurrentdifferentialprotectionbasedon5gdistributionnetwork AT yuyuexiang zerosequencecompensationmethodoflinelongitudinalcurrentdifferentialprotectionbasedon5gdistributionnetwork AT lixiao zerosequencecompensationmethodoflinelongitudinalcurrentdifferentialprotectionbasedon5gdistributionnetwork AT jinyechen zerosequencecompensationmethodoflinelongitudinalcurrentdifferentialprotectionbasedon5gdistributionnetwork AT zhaofang zerosequencecompensationmethodoflinelongitudinalcurrentdifferentialprotectionbasedon5gdistributionnetwork |