Short-circuit fault location method of flexible interconnected distribution network based on waveform similarity
Because of the complex control strategy and weak feed characteristics of soft normal open points (SNOP),traditional fault location methods of distribution networks are no longer applicable to flexible distribution network (FDN). A method for fault location in FDN using waveform similarity of positiv...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Electric Power Engineering Technology
2025-01-01
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| Series: | 电力工程技术 |
| Subjects: | |
| Online Access: | https://www.epet-info.com/dlgcjsen/article/abstract/231027333 |
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| _version_ | 1823865296671211520 |
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| author | CHEN Jiming CHEN Wencong ZHANG Zhihua YU Xinwei XU Qian |
| author_facet | CHEN Jiming CHEN Wencong ZHANG Zhihua YU Xinwei XU Qian |
| author_sort | CHEN Jiming |
| collection | DOAJ |
| description | Because of the complex control strategy and weak feed characteristics of soft normal open points (SNOP),traditional fault location methods of distribution networks are no longer applicable to flexible distribution network (FDN). A method for fault location in FDN using waveform similarity of positive-sequence current component is proposed. Firstly,considering the typical control strategy of SNOP,the short-circuit fault characteristics of FDN are analyzed. Secondly,Tanimoto coefficients of positive sequence current component at different locations are calculated. By comparing the waveform similarity at different locations of positive sequence current component,a short circuit fault location criterion for FDN is constructed. The Teager energy operator (TEO) is used to accurately calibrate the fault time,and smart terminal units (STU) are used to transmit information. Finally,the proposed method is analyzed and verified through modeling and simulation. The results show that the proposed method can accurately locate the fault section,and has the ability to resist the influence factors such as fault location,fault type,transition resistance,sampling frequency and communication delay,which verifies the feasibility and effectiveness of the proposed method. |
| format | Article |
| id | doaj-art-b36648e6dc5a466393d3129691d30daf |
| institution | Kabale University |
| issn | 2096-3203 |
| language | zho |
| publishDate | 2025-01-01 |
| publisher | Editorial Department of Electric Power Engineering Technology |
| record_format | Article |
| series | 电力工程技术 |
| spelling | doaj-art-b36648e6dc5a466393d3129691d30daf2025-02-08T08:40:18ZzhoEditorial Department of Electric Power Engineering Technology电力工程技术2096-32032025-01-0144110411410.12158/j.2096-3203.2025.01.011231027333Short-circuit fault location method of flexible interconnected distribution network based on waveform similarityCHEN Jiming0CHEN Wencong1ZHANG Zhihua2YU Xinwei3XU Qian4College of New Energy, China University of Petroleum, Qingdao 266580, ChinaCollege of New Energy, China University of Petroleum, Qingdao 266580, ChinaCollege of New Energy, China University of Petroleum, Qingdao 266580, ChinaCollege of New Energy, China University of Petroleum, Qingdao 266580, ChinaCollege of New Energy, China University of Petroleum, Qingdao 266580, ChinaBecause of the complex control strategy and weak feed characteristics of soft normal open points (SNOP),traditional fault location methods of distribution networks are no longer applicable to flexible distribution network (FDN). A method for fault location in FDN using waveform similarity of positive-sequence current component is proposed. Firstly,considering the typical control strategy of SNOP,the short-circuit fault characteristics of FDN are analyzed. Secondly,Tanimoto coefficients of positive sequence current component at different locations are calculated. By comparing the waveform similarity at different locations of positive sequence current component,a short circuit fault location criterion for FDN is constructed. The Teager energy operator (TEO) is used to accurately calibrate the fault time,and smart terminal units (STU) are used to transmit information. Finally,the proposed method is analyzed and verified through modeling and simulation. The results show that the proposed method can accurately locate the fault section,and has the ability to resist the influence factors such as fault location,fault type,transition resistance,sampling frequency and communication delay,which verifies the feasibility and effectiveness of the proposed method.https://www.epet-info.com/dlgcjsen/article/abstract/231027333flexible distribution network (fdn)soft normal open point (snop)fault analysiswaveform similarityfault locationpositive sequence current component |
| spellingShingle | CHEN Jiming CHEN Wencong ZHANG Zhihua YU Xinwei XU Qian Short-circuit fault location method of flexible interconnected distribution network based on waveform similarity 电力工程技术 flexible distribution network (fdn) soft normal open point (snop) fault analysis waveform similarity fault location positive sequence current component |
| title | Short-circuit fault location method of flexible interconnected distribution network based on waveform similarity |
| title_full | Short-circuit fault location method of flexible interconnected distribution network based on waveform similarity |
| title_fullStr | Short-circuit fault location method of flexible interconnected distribution network based on waveform similarity |
| title_full_unstemmed | Short-circuit fault location method of flexible interconnected distribution network based on waveform similarity |
| title_short | Short-circuit fault location method of flexible interconnected distribution network based on waveform similarity |
| title_sort | short circuit fault location method of flexible interconnected distribution network based on waveform similarity |
| topic | flexible distribution network (fdn) soft normal open point (snop) fault analysis waveform similarity fault location positive sequence current component |
| url | https://www.epet-info.com/dlgcjsen/article/abstract/231027333 |
| work_keys_str_mv | AT chenjiming shortcircuitfaultlocationmethodofflexibleinterconnecteddistributionnetworkbasedonwaveformsimilarity AT chenwencong shortcircuitfaultlocationmethodofflexibleinterconnecteddistributionnetworkbasedonwaveformsimilarity AT zhangzhihua shortcircuitfaultlocationmethodofflexibleinterconnecteddistributionnetworkbasedonwaveformsimilarity AT yuxinwei shortcircuitfaultlocationmethodofflexibleinterconnecteddistributionnetworkbasedonwaveformsimilarity AT xuqian shortcircuitfaultlocationmethodofflexibleinterconnecteddistributionnetworkbasedonwaveformsimilarity |