Frequency selection method for urban low frequency multi‐terminal interconnected systems
Abstract Large‐scale urban power grid (LUPG) is normally under the operating mode by voltage layer and zone partition. One of the most important directions for the development of urban is to enhance the controllability by flexible low‐frequency interconnection technology. In this study, a frequency...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2023-05-01
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| Series: | IET Generation, Transmission & Distribution |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/gtd2.12831 |
| _version_ | 1797833645299335168 |
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| author | Kehan Xu Zheren Zhang Zheng Xu |
| author_facet | Kehan Xu Zheren Zhang Zheng Xu |
| author_sort | Kehan Xu |
| collection | DOAJ |
| description | Abstract Large‐scale urban power grid (LUPG) is normally under the operating mode by voltage layer and zone partition. One of the most important directions for the development of urban is to enhance the controllability by flexible low‐frequency interconnection technology. In this study, a frequency selection method for urban low‐frequency multi‐terminal interconnected systems (ULFMIS) is proposed. Firstly, the required support power under different conditions, the index number of sending partition (SP) and receiving partition (RP) are determined. Secondly, by calculating the current distribution along the line under different support powers, the upper limit of the transmission frequency (ULTF) of each line is obtained. Finally, the smallest transmission frequency among the ULTFs of different tie lines is selected as the ULTF of the ULFMIS. The proposed method is validated in a typical four‐terminal ULFMIS. The results demonstrate that the suggested method is suitable for calculating the ULTF taking account of the influence of the number of parallel lines on economic cost and provide guidance for future practical ULFMIS projects. |
| first_indexed | 2024-04-09T14:27:32Z |
| format | Article |
| id | doaj.art-bf75fcb9b94044a2a06e02c39372740e |
| institution | Directory Open Access Journal |
| issn | 1751-8687 1751-8695 |
| language | English |
| last_indexed | 2024-04-09T14:27:32Z |
| publishDate | 2023-05-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Generation, Transmission & Distribution |
| spelling | doaj.art-bf75fcb9b94044a2a06e02c39372740e2023-05-04T02:55:43ZengWileyIET Generation, Transmission & Distribution1751-86871751-86952023-05-011792182219110.1049/gtd2.12831Frequency selection method for urban low frequency multi‐terminal interconnected systemsKehan Xu0Zheren Zhang1Zheng Xu2College of Electrical Engineering Zhejiang University Hangzhou Zhejiang Province ChinaCollege of Electrical Engineering Zhejiang University Hangzhou Zhejiang Province ChinaCollege of Electrical Engineering Zhejiang University Hangzhou Zhejiang Province ChinaAbstract Large‐scale urban power grid (LUPG) is normally under the operating mode by voltage layer and zone partition. One of the most important directions for the development of urban is to enhance the controllability by flexible low‐frequency interconnection technology. In this study, a frequency selection method for urban low‐frequency multi‐terminal interconnected systems (ULFMIS) is proposed. Firstly, the required support power under different conditions, the index number of sending partition (SP) and receiving partition (RP) are determined. Secondly, by calculating the current distribution along the line under different support powers, the upper limit of the transmission frequency (ULTF) of each line is obtained. Finally, the smallest transmission frequency among the ULTFs of different tie lines is selected as the ULTF of the ULFMIS. The proposed method is validated in a typical four‐terminal ULFMIS. The results demonstrate that the suggested method is suitable for calculating the ULTF taking account of the influence of the number of parallel lines on economic cost and provide guidance for future practical ULFMIS projects.https://doi.org/10.1049/gtd2.12831flexible AC transmission systemsflexible alternating current transmission system (FACTS) |
| spellingShingle | Kehan Xu Zheren Zhang Zheng Xu Frequency selection method for urban low frequency multi‐terminal interconnected systems IET Generation, Transmission & Distribution flexible AC transmission systems flexible alternating current transmission system (FACTS) |
| title | Frequency selection method for urban low frequency multi‐terminal interconnected systems |
| title_full | Frequency selection method for urban low frequency multi‐terminal interconnected systems |
| title_fullStr | Frequency selection method for urban low frequency multi‐terminal interconnected systems |
| title_full_unstemmed | Frequency selection method for urban low frequency multi‐terminal interconnected systems |
| title_short | Frequency selection method for urban low frequency multi‐terminal interconnected systems |
| title_sort | frequency selection method for urban low frequency multi terminal interconnected systems |
| topic | flexible AC transmission systems flexible alternating current transmission system (FACTS) |
| url | https://doi.org/10.1049/gtd2.12831 |
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