Dynamic aggregation method for wind farms for overvoltage protection and accuracy stability enhancement
Existing equivalent methods for permanent-magnet synchronous generator (PMSG) wind farms struggle to precisely simulate dynamic characteristics during overvoltage faults and protection triggering, thereby limiting their applicability in transient stability analysis under extreme grid conditions. Thi...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2025-10-01
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| Series: | International Journal of Electrical Power & Energy Systems |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0142061525005782 |
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| _version_ | 1849228416701693952 |
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| author | Zongzheng Wang Chenlei Liu Wei Wang Tong Zhao Yifan Liu Zhijuan Wang Ying Sun Xiaolong Wang |
| author_facet | Zongzheng Wang Chenlei Liu Wei Wang Tong Zhao Yifan Liu Zhijuan Wang Ying Sun Xiaolong Wang |
| author_sort | Zongzheng Wang |
| collection | DOAJ |
| description | Existing equivalent methods for permanent-magnet synchronous generator (PMSG) wind farms struggle to precisely simulate dynamic characteristics during overvoltage faults and protection triggering, thereby limiting their applicability in transient stability analysis under extreme grid conditions. This paper proposes a novel dynamic aggregation method that integrates overvoltage protection mechanisms. First, the paper analyzes the operational boundaries of grid-side converters (GSC) during high voltage ride through (HVRT) and overvoltage protection states, proposing a maximum reactive power constraint model to capture dynamic reactive power behavior during overvoltage protection triggering. Further investigation quantifies the relationship between wind turbine’s maximum reactive power and wind speed under extreme operational limits, developing a wind-speed-dependent reactive power model. In the study of aggregation methods, it was found that the choice of aggregation parameters for the overvoltage protection phase directly affects the aggregation accuracy. We developed a dynamic aggregation method that prioritizes maximum reactive power equivalence over wind speed homogeneity, effectively decoupling aggregation errors from wind farm dispersion patterns. Simulation results from a offshore wind farm system confirm the method’s superior performance compared to traditional high voltage ride through approaches, maintaining enhanced accuracy during overvoltage faults and consistent stability across diverse wind distribution scenarios. This methodology provides a robust solution for electromagnetic transient simulations requiring precise representation of protection-triggered dynamics in offshore wind farms. |
| format | Article |
| id | doaj-art-0ed70a43d0844490ac1e8de319d6bbe1 |
| institution | Kabale University |
| issn | 0142-0615 |
| language | English |
| publishDate | 2025-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Electrical Power & Energy Systems |
| spelling | doaj-art-0ed70a43d0844490ac1e8de319d6bbe12025-08-23T04:47:22ZengElsevierInternational Journal of Electrical Power & Energy Systems0142-06152025-10-0117111103010.1016/j.ijepes.2025.111030Dynamic aggregation method for wind farms for overvoltage protection and accuracy stability enhancementZongzheng Wang0Chenlei Liu1Wei Wang2Tong Zhao3Yifan Liu4Zhijuan Wang5Ying Sun6Xiaolong Wang7Shangdong University, 250061 Jinan, Shandong, ChinaCorresponding authors.; Shangdong University, 250061 Jinan, Shandong, ChinaShangdong University, 250061 Jinan, Shandong, ChinaShangdong University, 250061 Jinan, Shandong, ChinaShangdong University, 250061 Jinan, Shandong, ChinaShangdong University, 250061 Jinan, Shandong, ChinaShangdong University, 250061 Jinan, Shandong, ChinaCorresponding authors.; Shangdong University, 250061 Jinan, Shandong, ChinaExisting equivalent methods for permanent-magnet synchronous generator (PMSG) wind farms struggle to precisely simulate dynamic characteristics during overvoltage faults and protection triggering, thereby limiting their applicability in transient stability analysis under extreme grid conditions. This paper proposes a novel dynamic aggregation method that integrates overvoltage protection mechanisms. First, the paper analyzes the operational boundaries of grid-side converters (GSC) during high voltage ride through (HVRT) and overvoltage protection states, proposing a maximum reactive power constraint model to capture dynamic reactive power behavior during overvoltage protection triggering. Further investigation quantifies the relationship between wind turbine’s maximum reactive power and wind speed under extreme operational limits, developing a wind-speed-dependent reactive power model. In the study of aggregation methods, it was found that the choice of aggregation parameters for the overvoltage protection phase directly affects the aggregation accuracy. We developed a dynamic aggregation method that prioritizes maximum reactive power equivalence over wind speed homogeneity, effectively decoupling aggregation errors from wind farm dispersion patterns. Simulation results from a offshore wind farm system confirm the method’s superior performance compared to traditional high voltage ride through approaches, maintaining enhanced accuracy during overvoltage faults and consistent stability across diverse wind distribution scenarios. This methodology provides a robust solution for electromagnetic transient simulations requiring precise representation of protection-triggered dynamics in offshore wind farms.http://www.sciencedirect.com/science/article/pii/S0142061525005782Dynamic equivalent modelOvervoltage protectionPMSG wind farmsHigh voltage ride through |
| spellingShingle | Zongzheng Wang Chenlei Liu Wei Wang Tong Zhao Yifan Liu Zhijuan Wang Ying Sun Xiaolong Wang Dynamic aggregation method for wind farms for overvoltage protection and accuracy stability enhancement International Journal of Electrical Power & Energy Systems Dynamic equivalent model Overvoltage protection PMSG wind farms High voltage ride through |
| title | Dynamic aggregation method for wind farms for overvoltage protection and accuracy stability enhancement |
| title_full | Dynamic aggregation method for wind farms for overvoltage protection and accuracy stability enhancement |
| title_fullStr | Dynamic aggregation method for wind farms for overvoltage protection and accuracy stability enhancement |
| title_full_unstemmed | Dynamic aggregation method for wind farms for overvoltage protection and accuracy stability enhancement |
| title_short | Dynamic aggregation method for wind farms for overvoltage protection and accuracy stability enhancement |
| title_sort | dynamic aggregation method for wind farms for overvoltage protection and accuracy stability enhancement |
| topic | Dynamic equivalent model Overvoltage protection PMSG wind farms High voltage ride through |
| url | http://www.sciencedirect.com/science/article/pii/S0142061525005782 |
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