Three-Phase Bidirectional Isolated AC–DC Matrix-Converter With Full Soft-Switching Range
Galvanically isolated ac-dc converters are crucial for integrating distribution generation, energy storage, dc microgrids, and electric vehicles with ac distribution system. The typical industrial approach involves a two-stage setup (ac-dc/dc-dc) with a bulky dc link capacitor, and dual-active bridg...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2023-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10292858/ |
| _version_ | 1797635426359443456 |
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| author | Edivan Laercio Carvalho Andrei Blinov Pietro Emiliani Andrii Chub Dmitri Vinnikov |
| author_facet | Edivan Laercio Carvalho Andrei Blinov Pietro Emiliani Andrii Chub Dmitri Vinnikov |
| author_sort | Edivan Laercio Carvalho |
| collection | DOAJ |
| description | Galvanically isolated ac-dc converters are crucial for integrating distribution generation, energy storage, dc microgrids, and electric vehicles with ac distribution system. The typical industrial approach involves a two-stage setup (ac-dc/dc-dc) with a bulky dc link capacitor, and dual-active bridge converter (dc-dc) for isolation. However, this leads to increased power losses due to multiple power processing stages. To overcome this issue, this paper proposes a three-phase bidirectional isolated ac-dc matrix-converter, as a candidate solution. This topology employs a high-frequency link, eliminating the need for a traditional intermediate dc link found in a standard two-stage solution. As a main contribution, a quasi-resonant modulation strategy is introduced to allow all semiconductors to operate under soft-switching for a wide operating range. A 3.5 kW prototype was built to compare proposed one with the two-stage ac-dc converter. The experimental results show that the proposed converter achieved 96.5% efficiency at nominal power, outperforming the conventional converter, which reached 95.4% efficiency, mainly due to the extra power processing stage in the two-stage solution. |
| first_indexed | 2024-03-11T12:20:59Z |
| format | Article |
| id | doaj.art-9b080f78a93e48b0ae9c36a1a3f48ea3 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-03-11T12:20:59Z |
| publishDate | 2023-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-9b080f78a93e48b0ae9c36a1a3f48ea32023-11-07T00:02:39ZengIEEEIEEE Access2169-35362023-01-011111927011928310.1109/ACCESS.2023.332722410292858Three-Phase Bidirectional Isolated AC–DC Matrix-Converter With Full Soft-Switching RangeEdivan Laercio Carvalho0https://orcid.org/0000-0002-8389-8703Andrei Blinov1https://orcid.org/0000-0001-8577-4897Pietro Emiliani2Andrii Chub3https://orcid.org/0000-0002-4253-7506Dmitri Vinnikov4https://orcid.org/0000-0001-6010-3464Department of Electrical Power Engineering and Mechatronics, Tallinn University of Technology, Tallinn, EstoniaDepartment of Electrical Power Engineering and Mechatronics, Tallinn University of Technology, Tallinn, EstoniaDepartment of Electrical Power Engineering and Mechatronics, Tallinn University of Technology, Tallinn, EstoniaDepartment of Electrical Power Engineering and Mechatronics, Tallinn University of Technology, Tallinn, EstoniaDepartment of Electrical Power Engineering and Mechatronics, Tallinn University of Technology, Tallinn, EstoniaGalvanically isolated ac-dc converters are crucial for integrating distribution generation, energy storage, dc microgrids, and electric vehicles with ac distribution system. The typical industrial approach involves a two-stage setup (ac-dc/dc-dc) with a bulky dc link capacitor, and dual-active bridge converter (dc-dc) for isolation. However, this leads to increased power losses due to multiple power processing stages. To overcome this issue, this paper proposes a three-phase bidirectional isolated ac-dc matrix-converter, as a candidate solution. This topology employs a high-frequency link, eliminating the need for a traditional intermediate dc link found in a standard two-stage solution. As a main contribution, a quasi-resonant modulation strategy is introduced to allow all semiconductors to operate under soft-switching for a wide operating range. A 3.5 kW prototype was built to compare proposed one with the two-stage ac-dc converter. The experimental results show that the proposed converter achieved 96.5% efficiency at nominal power, outperforming the conventional converter, which reached 95.4% efficiency, mainly due to the extra power processing stage in the two-stage solution.https://ieeexplore.ieee.org/document/10292858/Direct matrix typeisolated rectifiermatrix-converterthree-phase power factor correction (PFC) converter |
| spellingShingle | Edivan Laercio Carvalho Andrei Blinov Pietro Emiliani Andrii Chub Dmitri Vinnikov Three-Phase Bidirectional Isolated AC–DC Matrix-Converter With Full Soft-Switching Range IEEE Access Direct matrix type isolated rectifier matrix-converter three-phase power factor correction (PFC) converter |
| title | Three-Phase Bidirectional Isolated AC–DC Matrix-Converter With Full Soft-Switching Range |
| title_full | Three-Phase Bidirectional Isolated AC–DC Matrix-Converter With Full Soft-Switching Range |
| title_fullStr | Three-Phase Bidirectional Isolated AC–DC Matrix-Converter With Full Soft-Switching Range |
| title_full_unstemmed | Three-Phase Bidirectional Isolated AC–DC Matrix-Converter With Full Soft-Switching Range |
| title_short | Three-Phase Bidirectional Isolated AC–DC Matrix-Converter With Full Soft-Switching Range |
| title_sort | three phase bidirectional isolated ac x2013 dc matrix converter with full soft switching range |
| topic | Direct matrix type isolated rectifier matrix-converter three-phase power factor correction (PFC) converter |
| url | https://ieeexplore.ieee.org/document/10292858/ |
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