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Power electronic transformer based on cascaded H-bridge converter

Abstract

In this paper the control strategy of power electronic transformer (PET) is proposed. The analyzed structure of PET uses two seven-level cascaded H-bridge (CHB) rectifiers. The electrical power of PET is transferred between DC-links of CHB converters using dual-active-bridges (DABs) and low voltage high frequency transformers. The roposed solution allows for controlling the active and reactive power with a low level of harmonic distortions. The DC-link voltages and the load of the utilized H-bridges are controlled using appropriate modulation strategy. The theoretical issues are confirmed by simulation and experimental results.

Citations

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Details

Category:
Articles
Type:
artykuł w czasopiśmie wyróżnionym w JCR
Published in:
Bulletin of the Polish Academy of Sciences-Technical Sciences no. 65, edition 5, pages 675 - 683,
ISSN: 0239-7528
Language:
English
Publication year:
2017
Bibliographic description:
Morawiec M., Lewicki A.: Power electronic transformer based on cascaded H-bridge converter// Bulletin of the Polish Academy of Sciences-Technical Sciences. -Vol. 65, iss. 5 (2017), s.675-683
DOI:
Digital Object Identifier (open in new tab) 10.1515/bpasts-2017-0072
Verified by:
Gdańsk University of Technology

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