Strategy for evaluating the status of relay protection equipment for the new generation of intelligent substations
With the rapid development of power grid, the structure and technology of the secondary system in substations are also constantly innovating. The new generation of intelligent substations has achieved online monitoring functions for secondary equipment, making some state variables of relay protectio...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2024-04-01
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| Series: | Frontiers in Energy Research |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fenrg.2024.1342793/full |
| _version_ | 1797218165205237760 |
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| author | Dapeng Liu Kuizhong Wu Zhenhua Guo Yunhai Cui Wenbin Liu Jinjing Zhang |
| author_facet | Dapeng Liu Kuizhong Wu Zhenhua Guo Yunhai Cui Wenbin Liu Jinjing Zhang |
| author_sort | Dapeng Liu |
| collection | DOAJ |
| description | With the rapid development of power grid, the structure and technology of the secondary system in substations are also constantly innovating. The new generation of intelligent substations has achieved online monitoring functions for secondary equipment, making some state variables of relay protection equipment become observable indicators. Based on this, this paper proposes a novel relay protection equipment status evaluation strategy. Firstly, considering the fuzziness and uncertainty of the boundary division of relay protection evaluation levels, a relay protection risk assessment method based on normal cloud model has been proposed. Then, due to the particularity of historical statistical data, a weight calculation method combining analytical hierarchy process (AHP) and entropy weight method is adopted to eliminate subjective factors in the weight calculation process. Meanwhile, the equipment operation risk level was determined by calculating the certainty of the corresponding evaluation level for each indicator. Finally, in case study, the proposed method is used to evaluate the status of relay protection equipment, and the feasibility and accuracy of this method are verified through the analysis of the results. |
| first_indexed | 2024-04-24T12:13:25Z |
| format | Article |
| id | doaj.art-3e4e922ac68c49669b7de7b920dc8fe0 |
| institution | Directory Open Access Journal |
| issn | 2296-598X |
| language | English |
| last_indexed | 2024-04-24T12:13:25Z |
| publishDate | 2024-04-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Energy Research |
| spelling | doaj.art-3e4e922ac68c49669b7de7b920dc8fe02024-04-08T09:51:20ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2024-04-011210.3389/fenrg.2024.13427931342793Strategy for evaluating the status of relay protection equipment for the new generation of intelligent substationsDapeng LiuKuizhong WuZhenhua GuoYunhai CuiWenbin LiuJinjing ZhangWith the rapid development of power grid, the structure and technology of the secondary system in substations are also constantly innovating. The new generation of intelligent substations has achieved online monitoring functions for secondary equipment, making some state variables of relay protection equipment become observable indicators. Based on this, this paper proposes a novel relay protection equipment status evaluation strategy. Firstly, considering the fuzziness and uncertainty of the boundary division of relay protection evaluation levels, a relay protection risk assessment method based on normal cloud model has been proposed. Then, due to the particularity of historical statistical data, a weight calculation method combining analytical hierarchy process (AHP) and entropy weight method is adopted to eliminate subjective factors in the weight calculation process. Meanwhile, the equipment operation risk level was determined by calculating the certainty of the corresponding evaluation level for each indicator. Finally, in case study, the proposed method is used to evaluate the status of relay protection equipment, and the feasibility and accuracy of this method are verified through the analysis of the results.https://www.frontiersin.org/articles/10.3389/fenrg.2024.1342793/fullintelligent substationsrelay protection equipmentstatus evaluation strategycloud modelpower system |
| spellingShingle | Dapeng Liu Kuizhong Wu Zhenhua Guo Yunhai Cui Wenbin Liu Jinjing Zhang Strategy for evaluating the status of relay protection equipment for the new generation of intelligent substations Frontiers in Energy Research intelligent substations relay protection equipment status evaluation strategy cloud model power system |
| title | Strategy for evaluating the status of relay protection equipment for the new generation of intelligent substations |
| title_full | Strategy for evaluating the status of relay protection equipment for the new generation of intelligent substations |
| title_fullStr | Strategy for evaluating the status of relay protection equipment for the new generation of intelligent substations |
| title_full_unstemmed | Strategy for evaluating the status of relay protection equipment for the new generation of intelligent substations |
| title_short | Strategy for evaluating the status of relay protection equipment for the new generation of intelligent substations |
| title_sort | strategy for evaluating the status of relay protection equipment for the new generation of intelligent substations |
| topic | intelligent substations relay protection equipment status evaluation strategy cloud model power system |
| url | https://www.frontiersin.org/articles/10.3389/fenrg.2024.1342793/full |
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