A Differential Protection Scheme Based on Improved DTW Algorithm for Distribution Networks With Highly-Penetrated Distributed Generation
Differential protection has been introduced into the distribution network to address the ineffectiveness of traditional protection due to the uncertainties of power flow caused by the access of multiple inverter-interfaced distributed generation (IIDG). Designed for lower data synchronization costs,...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2023-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10106275/ |
| _version_ | 1797838053527519232 |
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| author | Xiren Miao Dan Zhao Baoquan Lin Hao Jiang Jing Chen |
| author_facet | Xiren Miao Dan Zhao Baoquan Lin Hao Jiang Jing Chen |
| author_sort | Xiren Miao |
| collection | DOAJ |
| description | Differential protection has been introduced into the distribution network to address the ineffectiveness of traditional protection due to the uncertainties of power flow caused by the access of multiple inverter-interfaced distributed generation (IIDG). Designed for lower data synchronization costs, this paper proposes a novel differential protection scheme based on improved dynamic time warping (DTW) distance. The proposed algorithm can effectively alleviate the singularity caused by DTW’s excessive X-axis distortion through relaxation search and derivative estimation and minimize the impact of data synchronization errors and data loss. Based on the proposed algorithm, the protection scheme combined with the feeder terminal unit (FTU) for fast fault isolation is designed, which can make full use of the existing equipment and reduce costs. Moreover, multiple influencing factors considered in this scheme, including transition resistance, penetration rate, and output intermittency of IIDG, variable network topology, underground cables, and hybrid lines. The test results demonstrate that the proposed protection scheme can effectively isolate short-circuit faults in various scenarios. |
| first_indexed | 2024-04-09T15:34:37Z |
| format | Article |
| id | doaj.art-9267cfd6883647f0a38ed893537121d4 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-04-09T15:34:37Z |
| publishDate | 2023-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-9267cfd6883647f0a38ed893537121d42023-04-27T23:00:33ZengIEEEIEEE Access2169-35362023-01-0111403994041110.1109/ACCESS.2023.326929810106275A Differential Protection Scheme Based on Improved DTW Algorithm for Distribution Networks With Highly-Penetrated Distributed GenerationXiren Miao0https://orcid.org/0000-0003-2184-6403Dan Zhao1https://orcid.org/0000-0001-7349-4812Baoquan Lin2Hao Jiang3https://orcid.org/0000-0002-6902-9245Jing Chen4https://orcid.org/0000-0001-8305-9291College of Electrical Engineering and Automation, Fuzhou University, Fuzhou, Fujian, ChinaCollege of Electrical Engineering and Automation, Fuzhou University, Fuzhou, Fujian, ChinaCollege of Electrical Engineering and Automation, Fuzhou University, Fuzhou, Fujian, ChinaCollege of Electrical Engineering and Automation, Fuzhou University, Fuzhou, Fujian, ChinaCollege of Electrical Engineering and Automation, Fuzhou University, Fuzhou, Fujian, ChinaDifferential protection has been introduced into the distribution network to address the ineffectiveness of traditional protection due to the uncertainties of power flow caused by the access of multiple inverter-interfaced distributed generation (IIDG). Designed for lower data synchronization costs, this paper proposes a novel differential protection scheme based on improved dynamic time warping (DTW) distance. The proposed algorithm can effectively alleviate the singularity caused by DTW’s excessive X-axis distortion through relaxation search and derivative estimation and minimize the impact of data synchronization errors and data loss. Based on the proposed algorithm, the protection scheme combined with the feeder terminal unit (FTU) for fast fault isolation is designed, which can make full use of the existing equipment and reduce costs. Moreover, multiple influencing factors considered in this scheme, including transition resistance, penetration rate, and output intermittency of IIDG, variable network topology, underground cables, and hybrid lines. The test results demonstrate that the proposed protection scheme can effectively isolate short-circuit faults in various scenarios.https://ieeexplore.ieee.org/document/10106275/Distribution networkimproved DTWdifferential current protectioninverter-interfaced distributed generationpositive sequence currentfeeder terminal unit |
| spellingShingle | Xiren Miao Dan Zhao Baoquan Lin Hao Jiang Jing Chen A Differential Protection Scheme Based on Improved DTW Algorithm for Distribution Networks With Highly-Penetrated Distributed Generation IEEE Access Distribution network improved DTW differential current protection inverter-interfaced distributed generation positive sequence current feeder terminal unit |
| title | A Differential Protection Scheme Based on Improved DTW Algorithm for Distribution Networks With Highly-Penetrated Distributed Generation |
| title_full | A Differential Protection Scheme Based on Improved DTW Algorithm for Distribution Networks With Highly-Penetrated Distributed Generation |
| title_fullStr | A Differential Protection Scheme Based on Improved DTW Algorithm for Distribution Networks With Highly-Penetrated Distributed Generation |
| title_full_unstemmed | A Differential Protection Scheme Based on Improved DTW Algorithm for Distribution Networks With Highly-Penetrated Distributed Generation |
| title_short | A Differential Protection Scheme Based on Improved DTW Algorithm for Distribution Networks With Highly-Penetrated Distributed Generation |
| title_sort | differential protection scheme based on improved dtw algorithm for distribution networks with highly penetrated distributed generation |
| topic | Distribution network improved DTW differential current protection inverter-interfaced distributed generation positive sequence current feeder terminal unit |
| url | https://ieeexplore.ieee.org/document/10106275/ |
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