A generalized method of power oscillation characteristic analysis for multi‐VSC grid‐connected system
Abstract The grid‐connection of high‐permeability new energy through voltage‐source converters (VSCs) brings new oscillation risks to the power system, which seriously threatens the stable operation of the system. Therefore, an evaluating method based on modal analysis is proposed to investigate the...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2024-11-01
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| Series: | IET Generation, Transmission & Distribution |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/gtd2.13306 |
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| _version_ | 1846156425288482816 |
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| author | Yonghai Xu Benshuang Qin Jiaoxin Jia Aobo Shan Yidan Chen Wang Yingxin |
| author_facet | Yonghai Xu Benshuang Qin Jiaoxin Jia Aobo Shan Yidan Chen Wang Yingxin |
| author_sort | Yonghai Xu |
| collection | DOAJ |
| description | Abstract The grid‐connection of high‐permeability new energy through voltage‐source converters (VSCs) brings new oscillation risks to the power system, which seriously threatens the stable operation of the system. Therefore, an evaluating method based on modal analysis is proposed to investigate the power oscillation characteristics in a multi‐VSC grid‐connected system. Initially, based on the analogy method, the output admittance model of voltage‐source controlled VSCs (VC‐VSCs) and current‐source controlled VSCs (CC‐VSCs) is established. Subsequently, the output admittance model of a multi‐VSC grid‐connected system is constructed. Then, the modal analysis method is introduced to investigate the power oscillation characteristics of VC‐VSCs and CC‐VSCs, and the influence factors of power oscillation and its variation law are analysed. Next, a sensitivity analysis is also employed, which helps to identify the origin of each oscillation mode and determine the contribution of each component to the power oscillation. Finally, simulation and experiment are carried out to verify the effectiveness of the above analysis method. |
| format | Article |
| id | doaj-art-f4ff93840e6f43ae9f9b1032d49ff028 |
| institution | Kabale University |
| issn | 1751-8687 1751-8695 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Generation, Transmission & Distribution |
| spelling | doaj-art-f4ff93840e6f43ae9f9b1032d49ff0282024-11-26T06:14:51ZengWileyIET Generation, Transmission & Distribution1751-86871751-86952024-11-0118223633364510.1049/gtd2.13306A generalized method of power oscillation characteristic analysis for multi‐VSC grid‐connected systemYonghai Xu0Benshuang Qin1Jiaoxin Jia2Aobo Shan3Yidan Chen4Wang Yingxin5State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power University Beijing ChinaState Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power University Beijing ChinaState Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power University Beijing ChinaState Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power University Beijing ChinaState Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power University Beijing ChinaState Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power University Beijing ChinaAbstract The grid‐connection of high‐permeability new energy through voltage‐source converters (VSCs) brings new oscillation risks to the power system, which seriously threatens the stable operation of the system. Therefore, an evaluating method based on modal analysis is proposed to investigate the power oscillation characteristics in a multi‐VSC grid‐connected system. Initially, based on the analogy method, the output admittance model of voltage‐source controlled VSCs (VC‐VSCs) and current‐source controlled VSCs (CC‐VSCs) is established. Subsequently, the output admittance model of a multi‐VSC grid‐connected system is constructed. Then, the modal analysis method is introduced to investigate the power oscillation characteristics of VC‐VSCs and CC‐VSCs, and the influence factors of power oscillation and its variation law are analysed. Next, a sensitivity analysis is also employed, which helps to identify the origin of each oscillation mode and determine the contribution of each component to the power oscillation. Finally, simulation and experiment are carried out to verify the effectiveness of the above analysis method.https://doi.org/10.1049/gtd2.13306circuit theoryDC–AC power convertorsdistributed power generationmodal analysisoscillations |
| spellingShingle | Yonghai Xu Benshuang Qin Jiaoxin Jia Aobo Shan Yidan Chen Wang Yingxin A generalized method of power oscillation characteristic analysis for multi‐VSC grid‐connected system IET Generation, Transmission & Distribution circuit theory DC–AC power convertors distributed power generation modal analysis oscillations |
| title | A generalized method of power oscillation characteristic analysis for multi‐VSC grid‐connected system |
| title_full | A generalized method of power oscillation characteristic analysis for multi‐VSC grid‐connected system |
| title_fullStr | A generalized method of power oscillation characteristic analysis for multi‐VSC grid‐connected system |
| title_full_unstemmed | A generalized method of power oscillation characteristic analysis for multi‐VSC grid‐connected system |
| title_short | A generalized method of power oscillation characteristic analysis for multi‐VSC grid‐connected system |
| title_sort | generalized method of power oscillation characteristic analysis for multi vsc grid connected system |
| topic | circuit theory DC–AC power convertors distributed power generation modal analysis oscillations |
| url | https://doi.org/10.1049/gtd2.13306 |
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