Distribution Network Differential Protection Technology Based on 5G Communication and Improved DTW
With a large number of distributed power generations connected to the distribution network, the distribution network has gradually transformed into a multi-source and multi-terminal network, and the requirements for relay protection performance are increasing. Current differential protection is s...
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| Format: | Article |
| Language: | zho |
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Harbin University of Science and Technology Publications
2023-08-01
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| Series: | Journal of Harbin University of Science and Technology |
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| Online Access: | https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=2239 |
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| _version_ | 1849317564535013376 |
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| author | YU Yang TANG Wei YE Yuanbo SHAO Qingzhu YANG Ruijin HUANG Yuhui |
| author_facet | YU Yang TANG Wei YE Yuanbo SHAO Qingzhu YANG Ruijin HUANG Yuhui |
| author_sort | YU Yang |
| collection | DOAJ |
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With a large number of distributed power generations connected to the distribution network, the distribution network has gradually transformed into a multi-source and multi-terminal network, and the requirements for relay protection performance are increasing. Current differential protection is suitable for the problem of multi-source network failure in distribution networks, but differential protection relies on fibre channel, which has problems such as high cost and difficult laying, which is difficult to promote and use. This paper proposes a distribution network differential protection scheme based on 5G communication, which aims to replace optical fiber by using the advantages of low latency and low cost of 5G communication and improve the practicality of differential protection of distribution network. To solve the problem of communication delay and delay jitter, an improved dynamic time programming (DTW) algorithm was introduced. Aiming at the shortcomings of traditional DTW algorithms, such as large overhead, algorithm accuracy and efficiency limited by sequence amplitude difference, and empirical selection of parameters, the global path constraint strategy, data standardization strategy and particle swarm optimization strategy are proposed to be improved. Simulation results show that the differential protection method of distribution network based on 5G communication and improved DTW is selective and fast,and can be reliably operated in different scenarios. |
| format | Article |
| id | doaj-art-3249aa25892d4f90a9433100a405b50a |
| institution | Kabale University |
| issn | 1007-2683 |
| language | zho |
| publishDate | 2023-08-01 |
| publisher | Harbin University of Science and Technology Publications |
| record_format | Article |
| series | Journal of Harbin University of Science and Technology |
| spelling | doaj-art-3249aa25892d4f90a9433100a405b50a2025-08-20T03:51:09ZzhoHarbin University of Science and Technology PublicationsJournal of Harbin University of Science and Technology1007-26832023-08-01280411011710.15938/j.jhust.2023.04.013Distribution Network Differential Protection Technology Based on 5G Communication and Improved DTWYU Yang0TANG Wei1YE Yuanbo2SHAO Qingzhu3YANG Ruijin4HUANG Yuhui5State Grid Anhui Electric Power Co. , LTD. , Hefei 230022 , ChinaState Grid Anhui Electric Power Co. , LTD. , Hefei 230022 , ChinaState Grid Anhui Electric Power Co. , LTD. , Hefei 230022 , ChinaState Grid Anhui Electric Power Co. , LTD. , Hefei 230022 , ChinaState Grid Anhui Electric Power Co. , LTD. , Hefei 230022 , ChinaSchool of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240 , China With a large number of distributed power generations connected to the distribution network, the distribution network has gradually transformed into a multi-source and multi-terminal network, and the requirements for relay protection performance are increasing. Current differential protection is suitable for the problem of multi-source network failure in distribution networks, but differential protection relies on fibre channel, which has problems such as high cost and difficult laying, which is difficult to promote and use. This paper proposes a distribution network differential protection scheme based on 5G communication, which aims to replace optical fiber by using the advantages of low latency and low cost of 5G communication and improve the practicality of differential protection of distribution network. To solve the problem of communication delay and delay jitter, an improved dynamic time programming (DTW) algorithm was introduced. Aiming at the shortcomings of traditional DTW algorithms, such as large overhead, algorithm accuracy and efficiency limited by sequence amplitude difference, and empirical selection of parameters, the global path constraint strategy, data standardization strategy and particle swarm optimization strategy are proposed to be improved. Simulation results show that the differential protection method of distribution network based on 5G communication and improved DTW is selective and fast,and can be reliably operated in different scenarios.https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=22395g communicationdifferential protectiondynamic time planningdistribution networkcommunication delay |
| spellingShingle | YU Yang TANG Wei YE Yuanbo SHAO Qingzhu YANG Ruijin HUANG Yuhui Distribution Network Differential Protection Technology Based on 5G Communication and Improved DTW Journal of Harbin University of Science and Technology 5g communication differential protection dynamic time planning distribution network communication delay |
| title | Distribution Network Differential Protection Technology Based on 5G Communication and Improved DTW |
| title_full | Distribution Network Differential Protection Technology Based on 5G Communication and Improved DTW |
| title_fullStr | Distribution Network Differential Protection Technology Based on 5G Communication and Improved DTW |
| title_full_unstemmed | Distribution Network Differential Protection Technology Based on 5G Communication and Improved DTW |
| title_short | Distribution Network Differential Protection Technology Based on 5G Communication and Improved DTW |
| title_sort | distribution network differential protection technology based on 5g communication and improved dtw |
| topic | 5g communication differential protection dynamic time planning distribution network communication delay |
| url | https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=2239 |
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