Multi-Terminal DC Transformer for Renewable Energy Cluster Grid Connection.
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| Title: | Multi-Terminal DC Transformer for Renewable Energy Cluster Grid Connection. |
|---|---|
| Authors: | Zhou, Feng1,2 (AUTHOR) zhoufeng.ypi@outlook.com, Kawaguchi, Takahiro1 (AUTHOR) kawaguchi@gunma-u.ac.jp, Hashimoto, Seiji1 (AUTHOR) hashimotos@gunma-u.ac.jp |
| Source: | Energies (19961073). Oct2024, Vol. 17 Issue 20, p5152. 18p. |
| Subjects: | DC transformers, Modular functions, Phase modulation, Renewable energy sources, Voltage |
| Abstract: | An AC (alternative current) power integration of distributed energies faces multi-fold challenges such as synchronization and weak grid-induced instability. In this study, a multi-terminal DC transformer is proposed for renewable energy clusters grid connection. The DC transformer provides multiple DC input ports for renewable energy collection, while the load port is connected to the medium-voltage DC grid via a modular multilevel converter (MMC). The multi-port topology enables flexible power transfer between multiple input sources to the load without additional components. The carrier layer modulation strategy is implemented to balance the MMC module voltage; bidirectional power transmission between multiple input sources is achieved through the phase shift modulation (PSM) method. First, we provided a detailed introduction of the proposed topology and working principle. A simulation model was built using the SIMULINK, and the simulation results verified the effectiveness of the proposed converter modulation strategy and phase shift modulation method. A corresponding hardware experimental platform was designed and built, and the modulation and voltage equalization functions of modular multilevel rectifiers were presented as well as the measured results of power transmission modulation of the converter under single-input and multi-input conditions. The results indicate that the proposed transformer can achieve multiple DC inputs and has multi-channel power transmission capabilities, making it suitable for renewable energy clusters grid connection. [ABSTRACT FROM AUTHOR] |
| Copyright of Energies (19961073) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 180557891 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Multi-Terminal DC Transformer for Renewable Energy Cluster Grid Connection. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Zhou%2C+Feng%22">Zhou, Feng</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> zhoufeng.ypi@outlook.com</i><br /><searchLink fieldCode="AR" term="%22Kawaguchi%2C+Takahiro%22">Kawaguchi, Takahiro</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> kawaguchi@gunma-u.ac.jp</i><br /><searchLink fieldCode="AR" term="%22Hashimoto%2C+Seiji%22">Hashimoto, Seiji</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> hashimotos@gunma-u.ac.jp</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Energies+%2819961073%29%22">Energies (19961073)</searchLink>. Oct2024, Vol. 17 Issue 20, p5152. 18p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22DC+transformers%22">DC transformers</searchLink><br /><searchLink fieldCode="DE" term="%22Modular+functions%22">Modular functions</searchLink><br /><searchLink fieldCode="DE" term="%22Phase+modulation%22">Phase modulation</searchLink><br /><searchLink fieldCode="DE" term="%22Renewable+energy+sources%22">Renewable energy sources</searchLink><br /><searchLink fieldCode="DE" term="%22Voltage%22">Voltage</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: An AC (alternative current) power integration of distributed energies faces multi-fold challenges such as synchronization and weak grid-induced instability. In this study, a multi-terminal DC transformer is proposed for renewable energy clusters grid connection. The DC transformer provides multiple DC input ports for renewable energy collection, while the load port is connected to the medium-voltage DC grid via a modular multilevel converter (MMC). The multi-port topology enables flexible power transfer between multiple input sources to the load without additional components. The carrier layer modulation strategy is implemented to balance the MMC module voltage; bidirectional power transmission between multiple input sources is achieved through the phase shift modulation (PSM) method. First, we provided a detailed introduction of the proposed topology and working principle. A simulation model was built using the SIMULINK, and the simulation results verified the effectiveness of the proposed converter modulation strategy and phase shift modulation method. A corresponding hardware experimental platform was designed and built, and the modulation and voltage equalization functions of modular multilevel rectifiers were presented as well as the measured results of power transmission modulation of the converter under single-input and multi-input conditions. The results indicate that the proposed transformer can achieve multiple DC inputs and has multi-channel power transmission capabilities, making it suitable for renewable energy clusters grid connection. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Energies (19961073) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3390/en17205152 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 18 StartPage: 5152 Subjects: – SubjectFull: DC transformers Type: general – SubjectFull: Modular functions Type: general – SubjectFull: Phase modulation Type: general – SubjectFull: Renewable energy sources Type: general – SubjectFull: Voltage Type: general Titles: – TitleFull: Multi-Terminal DC Transformer for Renewable Energy Cluster Grid Connection. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Zhou, Feng – PersonEntity: Name: NameFull: Kawaguchi, Takahiro – PersonEntity: Name: NameFull: Hashimoto, Seiji IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 10 Text: Oct2024 Type: published Y: 2024 Identifiers: – Type: issn-print Value: 19961073 Numbering: – Type: volume Value: 17 – Type: issue Value: 20 Titles: – TitleFull: Energies (19961073) Type: main |
| ResultId | 1 |
