Three-phase unidirectional buck-type third harmonic injection rectifier concepts

This work introduces three-phase unidirectional buck-type unity power factor rectifiers. The proposed rectifiers are assembled by incorporating auxiliary circuit branches into standard three-phase buck-type PFC topologies, each comprising an active switch and three diodes. These circuits can operate...

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Bibliographic Details
Main Authors: Soeiro, Thiago B., de Sousa, Gean J. M., Ortmann, Marcio S., Heldwein, Marcelo L.
Format: Conference Proceeding
Language:English
Subjects:
Harmonic analysis
Modulation
Rectifiers
Switches
Switching circuits
Tin
Online Access:Request full text
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Description
Summary:This work introduces three-phase unidirectional buck-type unity power factor rectifiers. The proposed rectifiers are assembled by incorporating auxiliary circuit branches into standard three-phase buck-type PFC topologies, each comprising an active switch and three diodes. These circuits can operate as active third harmonic current injection PFC systems. The characteristics of the buck-type converters, including their operation principle, appropriate modulation strategy and control structure, are described. The proposed converters are compared to state-of-the-art buck-type rectifiers. According to the results, the proposed rectifiers can achieve the highest efficiency and thus are the topology of choice for a 2.5 kW three-phase buck-type PFC rectifier.
ISSN:1048-2334
2470-6647
DOI:10.1109/APEC.2014.6803419