Medium Voltage Diode Rectifier Design for High Step-Up DC-DC Converter

A medium voltage rectifier, relying on series connection of SiC Schottky diodes, is designed and tested within a unidirectional isolated DC-DC converter. The design is realized considering efficiency, static and dynamic balancing and failure mode considerations. The model of the rectifier circuit is...

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Bibliographic Details
Published in2022 24th European Conference on Power Electronics and Applications (EPE'22 ECCE Europe) pp. 1 - 9
Main Authors Metayer, Pierre Le, Buttay, Cyril, Dujic, Drazen, Dworakowski, Piotr
Format Conference Proceeding
LanguageEnglish
Published EPE Association 05.09.2022
Subjects
DC-DC power converter
DC-DC power converters
Diode
Medium voltage
Medium voltage converter
Photovoltaic
Rectifiers
Reliability engineering
Schottky diodes
Silicon carbide
Snubbers
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Summary:A medium voltage rectifier, relying on series connection of SiC Schottky diodes, is designed and tested within a unidirectional isolated DC-DC converter. The design is realized considering efficiency, static and dynamic balancing and failure mode considerations. The model of the rectifier circuit is improved compared to the previous literature enabling to precisely represent the voltage oscillations due to switching, facilitating the design of the snubbers. Experimental results are presented to validate the design. The developed model results show good fit with the measurements.