Capacitor voltage balance control strategy based on MMC-MTDC
The MMC is composed of a large number of sub-modules. The operating conditions of each sub-module are different, which will inevitably affect the capacitor voltage of each sub-module, resulting in the difference of the capacitor voltage of each sub-module. The problem of uneven voltage of the sub-mo...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2022-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2022/27/e3sconf_vesep2022_01073.pdf |
| _version_ | 1811186281776939008 |
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| author | Ju Pengfei Zhao Bowen Zhang Yanchi Din Tian Liao Wanting Fang Jun |
| author_facet | Ju Pengfei Zhao Bowen Zhang Yanchi Din Tian Liao Wanting Fang Jun |
| author_sort | Ju Pengfei |
| collection | DOAJ |
| description | The MMC is composed of a large number of sub-modules. The operating conditions of each sub-module are different, which will inevitably affect the capacitor voltage of each sub-module, resulting in the difference of the capacitor voltage of each sub-module. The problem of uneven voltage of the sub-module capacitor voltage of the MMC system is unavoidable, and the uneven voltage of the capacitor will greatly affect the stable operation of the MMC system. This paper studies the multi-terminal flexible DC transmission system (MMC-MTDC) based on modular multi-level converters. The multi-terminal MMC-MTDC system model is established through the MMC-MTDC converter station level and the MMC-MTDC system level controller, and then according to the shutdown process of MMC-MTDC system, several optimal control methods are proposed to realize energy feedback and sub-module discharge to achieve capacitor voltage balance. Finally, the effectiveness of the proposed method is verified by building a simulation model. |
| first_indexed | 2024-04-11T13:42:51Z |
| format | Article |
| id | doaj.art-5324612c3b8b4ac98ca786e995d935a2 |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-04-11T13:42:51Z |
| publishDate | 2022-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-5324612c3b8b4ac98ca786e995d935a22022-12-22T04:21:10ZengEDP SciencesE3S Web of Conferences2267-12422022-01-013600107310.1051/e3sconf/202236001073e3sconf_vesep2022_01073Capacitor voltage balance control strategy based on MMC-MTDCJu Pengfei0Zhao Bowen1Zhang Yanchi2Din Tian3Liao Wanting4Fang Jun5Shanghai Dianji University, School of Electrical EngineeringState Grid Shanghai Jinshan Electric Power Supply Company, Operation and Maintenance DepartmentShanghai Dianji University, School of Electrical EngineeringShanghai Dianji University, School of Electrical EngineeringShanghai Dianji University, School of Electrical EngineeringShanghai Dianji University, School of Electrical EngineeringThe MMC is composed of a large number of sub-modules. The operating conditions of each sub-module are different, which will inevitably affect the capacitor voltage of each sub-module, resulting in the difference of the capacitor voltage of each sub-module. The problem of uneven voltage of the sub-module capacitor voltage of the MMC system is unavoidable, and the uneven voltage of the capacitor will greatly affect the stable operation of the MMC system. This paper studies the multi-terminal flexible DC transmission system (MMC-MTDC) based on modular multi-level converters. The multi-terminal MMC-MTDC system model is established through the MMC-MTDC converter station level and the MMC-MTDC system level controller, and then according to the shutdown process of MMC-MTDC system, several optimal control methods are proposed to realize energy feedback and sub-module discharge to achieve capacitor voltage balance. Finally, the effectiveness of the proposed method is verified by building a simulation model.https://www.e3s-conferences.org/articles/e3sconf/pdf/2022/27/e3sconf_vesep2022_01073.pdf |
| spellingShingle | Ju Pengfei Zhao Bowen Zhang Yanchi Din Tian Liao Wanting Fang Jun Capacitor voltage balance control strategy based on MMC-MTDC E3S Web of Conferences |
| title | Capacitor voltage balance control strategy based on MMC-MTDC |
| title_full | Capacitor voltage balance control strategy based on MMC-MTDC |
| title_fullStr | Capacitor voltage balance control strategy based on MMC-MTDC |
| title_full_unstemmed | Capacitor voltage balance control strategy based on MMC-MTDC |
| title_short | Capacitor voltage balance control strategy based on MMC-MTDC |
| title_sort | capacitor voltage balance control strategy based on mmc mtdc |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2022/27/e3sconf_vesep2022_01073.pdf |
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