Optimal Variable Frequency Soft Switching for Interleaved Grid Tied Inverters in Electric Vehicle Charging Applications.
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| Title: | Optimal Variable Frequency Soft Switching for Interleaved Grid Tied Inverters in Electric Vehicle Charging Applications. |
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| Authors: | Fahmy, Youssef A.1 (AUTHOR) matthew.jahnes@columbia.edu, Jahnes, Matthew1 (AUTHOR), Preindl, Matthias1 (AUTHOR) |
| Source: | Energies (19961073). Dec2024, Vol. 17 Issue 23, p6077. 16p. |
| Subjects: | Pulse width modulation inverters, Electric inverters, Zero voltage switching, Electric vehicle charging stations, Electric vehicles |
| Abstract: | Synchronized variable frequency soft-switching is analyzed and implemented in a 3-phase bidirectional grid-tied inverter. The common-mode connected topology and control allow for independent analysis of a single phase leg before six are combined into two interleaved, 3-phase inverters. Effective operation is enabled by discretizing the variable switching frequencies before synchronizing them with a control signal. The resulting inverter can operate at any power factor at power levels up to 50 kVA while maintaining zero-voltage switching (ZVS) throughout the grid cycle. Formal conditions for soft-switching and methods for achieving ZVS while maintaining global synchronization are presented. These conditions are then verified in a simulation. Finally, results for different power factors with and without interleaving are demonstrated in a prototype that achieves >98.1% efficiency when converting all real power. [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: 181656907 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Optimal Variable Frequency Soft Switching for Interleaved Grid Tied Inverters in Electric Vehicle Charging Applications. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Fahmy%2C+Youssef+A%2E%22">Fahmy, Youssef A.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> matthew.jahnes@columbia.edu</i><br /><searchLink fieldCode="AR" term="%22Jahnes%2C+Matthew%22">Jahnes, Matthew</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Preindl%2C+Matthias%22">Preindl, Matthias</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Energies+%2819961073%29%22">Energies (19961073)</searchLink>. Dec2024, Vol. 17 Issue 23, p6077. 16p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Pulse+width+modulation+inverters%22">Pulse width modulation inverters</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+inverters%22">Electric inverters</searchLink><br /><searchLink fieldCode="DE" term="%22Zero+voltage+switching%22">Zero voltage switching</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+vehicle+charging+stations%22">Electric vehicle charging stations</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+vehicles%22">Electric vehicles</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Synchronized variable frequency soft-switching is analyzed and implemented in a 3-phase bidirectional grid-tied inverter. The common-mode connected topology and control allow for independent analysis of a single phase leg before six are combined into two interleaved, 3-phase inverters. Effective operation is enabled by discretizing the variable switching frequencies before synchronizing them with a control signal. The resulting inverter can operate at any power factor at power levels up to 50 kVA while maintaining zero-voltage switching (ZVS) throughout the grid cycle. Formal conditions for soft-switching and methods for achieving ZVS while maintaining global synchronization are presented. These conditions are then verified in a simulation. Finally, results for different power factors with and without interleaving are demonstrated in a prototype that achieves >98.1% efficiency when converting all real power. [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.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=181656907 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3390/en17236077 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 16 StartPage: 6077 Subjects: – SubjectFull: Pulse width modulation inverters Type: general – SubjectFull: Electric inverters Type: general – SubjectFull: Zero voltage switching Type: general – SubjectFull: Electric vehicle charging stations Type: general – SubjectFull: Electric vehicles Type: general Titles: – TitleFull: Optimal Variable Frequency Soft Switching for Interleaved Grid Tied Inverters in Electric Vehicle Charging Applications. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Fahmy, Youssef A. – PersonEntity: Name: NameFull: Jahnes, Matthew – PersonEntity: Name: NameFull: Preindl, Matthias IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 12 Text: Dec2024 Type: published Y: 2024 Identifiers: – Type: issn-print Value: 19961073 Numbering: – Type: volume Value: 17 – Type: issue Value: 23 Titles: – TitleFull: Energies (19961073) Type: main |
| ResultId | 1 |
