Isolated AC/AC Converter With LLC Resonant Converter High-Frequency Link and Four-Quadrant Switches in the Output Stage
An AC-AC converter with a high-frequency link employing an LLC resonant converter operating in the vicinity of the resonance frequency was studied, in which a single output power stage is used, formed by a high-frequency AC-AC converter employing four-quadrant switches. The topology, its operation a...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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IEEE
2020-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/9270022/ |
| _version_ | 1819132718723629056 |
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| author | Leonardo F. Pacheco Kaio C. M. Nascimento Ivo Barbi |
| author_facet | Leonardo F. Pacheco Kaio C. M. Nascimento Ivo Barbi |
| author_sort | Leonardo F. Pacheco |
| collection | DOAJ |
| description | An AC-AC converter with a high-frequency link employing an LLC resonant converter operating in the vicinity of the resonance frequency was studied, in which a single output power stage is used, formed by a high-frequency AC-AC converter employing four-quadrant switches. The topology, its operation and the modulation strategy are described. The high-frequency stage switches located on the primary side of the transformer operate with soft switching of the ZVS type, while the four-quadrant switches that form the output stage operate with soft switching of the ZCS type. Experimental data obtained with a 1.5 kW experimental prototype (input 220 V<sub>RMS</sub>, output 220 V<sub>RMS</sub> and switching frequency 40 kHz), which was designed, built and tested in the laboratory, are reported herein. This converter can be considered a candidate for the building block of medium voltage solid-state transformers (SST) for power distribution systems. |
| first_indexed | 2024-12-22T09:35:51Z |
| format | Article |
| id | doaj.art-9edeab1dbee5425c931d644463ce50a1 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-22T09:35:51Z |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-9edeab1dbee5425c931d644463ce50a12022-12-21T18:30:51ZengIEEEIEEE Access2169-35362020-01-01821310421311410.1109/ACCESS.2020.30406179270022Isolated AC/AC Converter With LLC Resonant Converter High-Frequency Link and Four-Quadrant Switches in the Output StageLeonardo F. Pacheco0https://orcid.org/0000-0002-2225-1682Kaio C. M. Nascimento1Ivo Barbi2https://orcid.org/0000-0002-0917-2779Fotovoltaica/UFSC Solar Energy Research Laboratory, Federal University of Santa Catarina, Florianópolis, BrazilFotovoltaica/UFSC Solar Energy Research Laboratory, Federal University of Santa Catarina, Florianópolis, BrazilFotovoltaica/UFSC Solar Energy Research Laboratory, Federal University of Santa Catarina, Florianópolis, BrazilAn AC-AC converter with a high-frequency link employing an LLC resonant converter operating in the vicinity of the resonance frequency was studied, in which a single output power stage is used, formed by a high-frequency AC-AC converter employing four-quadrant switches. The topology, its operation and the modulation strategy are described. The high-frequency stage switches located on the primary side of the transformer operate with soft switching of the ZVS type, while the four-quadrant switches that form the output stage operate with soft switching of the ZCS type. Experimental data obtained with a 1.5 kW experimental prototype (input 220 V<sub>RMS</sub>, output 220 V<sub>RMS</sub> and switching frequency 40 kHz), which was designed, built and tested in the laboratory, are reported herein. This converter can be considered a candidate for the building block of medium voltage solid-state transformers (SST) for power distribution systems.https://ieeexplore.ieee.org/document/9270022/AC-AC converterhigh-frequency linkLLC convertersoft-commutationsolid-state transformer |
| spellingShingle | Leonardo F. Pacheco Kaio C. M. Nascimento Ivo Barbi Isolated AC/AC Converter With LLC Resonant Converter High-Frequency Link and Four-Quadrant Switches in the Output Stage IEEE Access AC-AC converter high-frequency link LLC converter soft-commutation solid-state transformer |
| title | Isolated AC/AC Converter With LLC Resonant Converter High-Frequency Link and Four-Quadrant Switches in the Output Stage |
| title_full | Isolated AC/AC Converter With LLC Resonant Converter High-Frequency Link and Four-Quadrant Switches in the Output Stage |
| title_fullStr | Isolated AC/AC Converter With LLC Resonant Converter High-Frequency Link and Four-Quadrant Switches in the Output Stage |
| title_full_unstemmed | Isolated AC/AC Converter With LLC Resonant Converter High-Frequency Link and Four-Quadrant Switches in the Output Stage |
| title_short | Isolated AC/AC Converter With LLC Resonant Converter High-Frequency Link and Four-Quadrant Switches in the Output Stage |
| title_sort | isolated ac ac converter with llc resonant converter high frequency link and four quadrant switches in the output stage |
| topic | AC-AC converter high-frequency link LLC converter soft-commutation solid-state transformer |
| url | https://ieeexplore.ieee.org/document/9270022/ |
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