Hybrid converter topologies for dc transmission systems.
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| Title: | Hybrid converter topologies for dc transmission systems. |
|---|---|
| Authors: | Adam, Grain Philip1 grain.adam@strath.ac.uk, Alsokhiry, Fahad2, Abdelsalam, Ibrahim3, Fletcher, John4, Lie Xu1, Al-Turki, Yusuf2 |
| Source: | IET Power Electronics (Wiley-Blackwell). 2019, Vol. 12 Issue 3, p607-619. 13p. 6 Diagrams, 3 Charts, 13 Graphs. |
| Subjects: | Direct currents, Converters (Electronics), Independent system operators, Hybrid systems, Electric circuits |
| Abstract: | This study presents types 1 and 2 hybrid converters with reduced power circuit complexity compared with the mixed cell modular multilevel converter (MC-MMC). The type 1 converter is formed by replacing the director switches of the alternate arm converter by high-voltage (HV) half-bridge (HB) cells rated for half of the dc-link voltage. Also, it resembles special case of MC-MMC, where the entire HB cells of each arm are lumped into a single HV HB cell, with both capacitors of the half- and fullbridge cells are exposed to fundamental current as in the conventional MMC. The upper and lower arms of the type 2 converter resemble a front-to-front connection of two three-phase hybrid cascaded two-level converters, where the cell capacitors of the three-phase two-level converters that act as director switches do not experience fundamental currents. Therefore, the type 2 converter offers compact design compared with type 1 converter and the MC-MMC. The technical viabilities of the proposed hybrid converters are assessed using simulations, with both converters modelled in MATLAB-Simulink using electromagnetic transient simulation approach, considering normal and transient conditions. Experimental results obtained from single-phase type 1 converter confirm the practical viability of the proposed converters. [ABSTRACT FROM AUTHOR] |
| Copyright of IET Power Electronics (Wiley-Blackwell) is the property of Wiley-Blackwell 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 |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 135073874 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Hybrid converter topologies for dc transmission systems. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Adam%2C+Grain+Philip%22">Adam, Grain Philip</searchLink><relatesTo>1</relatesTo><i> grain.adam@strath.ac.uk</i><br /><searchLink fieldCode="AR" term="%22Alsokhiry%2C+Fahad%22">Alsokhiry, Fahad</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Abdelsalam%2C+Ibrahim%22">Abdelsalam, Ibrahim</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Fletcher%2C+John%22">Fletcher, John</searchLink><relatesTo>4</relatesTo><br /><searchLink fieldCode="AR" term="%22Lie+Xu%22">Lie Xu</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Al-Turki%2C+Yusuf%22">Al-Turki, Yusuf</searchLink><relatesTo>2</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22IET+Power+Electronics+%28Wiley-Blackwell%29%22">IET Power Electronics (Wiley-Blackwell)</searchLink>. 2019, Vol. 12 Issue 3, p607-619. 13p. 6 Diagrams, 3 Charts, 13 Graphs. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Direct+currents%22">Direct currents</searchLink><br /><searchLink fieldCode="DE" term="%22Converters+%28Electronics%29%22">Converters (Electronics)</searchLink><br /><searchLink fieldCode="DE" term="%22Independent+system+operators%22">Independent system operators</searchLink><br /><searchLink fieldCode="DE" term="%22Hybrid+systems%22">Hybrid systems</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+circuits%22">Electric circuits</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: This study presents types 1 and 2 hybrid converters with reduced power circuit complexity compared with the mixed cell modular multilevel converter (MC-MMC). The type 1 converter is formed by replacing the director switches of the alternate arm converter by high-voltage (HV) half-bridge (HB) cells rated for half of the dc-link voltage. Also, it resembles special case of MC-MMC, where the entire HB cells of each arm are lumped into a single HV HB cell, with both capacitors of the half- and fullbridge cells are exposed to fundamental current as in the conventional MMC. The upper and lower arms of the type 2 converter resemble a front-to-front connection of two three-phase hybrid cascaded two-level converters, where the cell capacitors of the three-phase two-level converters that act as director switches do not experience fundamental currents. Therefore, the type 2 converter offers compact design compared with type 1 converter and the MC-MMC. The technical viabilities of the proposed hybrid converters are assessed using simulations, with both converters modelled in MATLAB-Simulink using electromagnetic transient simulation approach, considering normal and transient conditions. Experimental results obtained from single-phase type 1 converter confirm the practical viability of the proposed converters. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of IET Power Electronics (Wiley-Blackwell) is the property of Wiley-Blackwell 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: 10.1049/iet-pel.2018.5100 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 13 StartPage: 607 Subjects: – SubjectFull: Direct currents Type: general – SubjectFull: Converters (Electronics) Type: general – SubjectFull: Independent system operators Type: general – SubjectFull: Hybrid systems Type: general – SubjectFull: Electric circuits Type: general Titles: – TitleFull: Hybrid converter topologies for dc transmission systems. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Adam, Grain Philip – PersonEntity: Name: NameFull: Alsokhiry, Fahad – PersonEntity: Name: NameFull: Abdelsalam, Ibrahim – PersonEntity: Name: NameFull: Fletcher, John – PersonEntity: Name: NameFull: Lie Xu – PersonEntity: Name: NameFull: Al-Turki, Yusuf IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 02 Text: 2019 Type: published Y: 2019 Identifiers: – Type: issn-print Value: 17554535 Numbering: – Type: volume Value: 12 – Type: issue Value: 3 Titles: – TitleFull: IET Power Electronics (Wiley-Blackwell) Type: main |
| ResultId | 1 |
