Loss analysis of a high frequency isolated AC-AC converter applied as voltage regulator

This paper presents a single-stage high frequency isolated AC-AC converter applied as voltage regulator. The proposed converter uses only unidirectional switches, and it can handle voltage sags up to 0.7 p.u. The principle of operation is described, and the soft switching boundaries are obtained. Th...

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Bibliographic Details
Published in2017 Brazilian Power Electronics Conference (COBEP) pp. 1 - 6
Main Authors Silva Filho, Olympio C., de Almeida, Bruno R., Oliveira, Demercil S., Fernandes Neto, Tobias R.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.11.2017
Subjects
DAB
Indirect converter
Isolated
Losses analysis
Power quality
Soft switching
Switches
Topology
Voltage control
Voltage regulator
Windings
Zero voltage switching
ZVS
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Summary:This paper presents a single-stage high frequency isolated AC-AC converter applied as voltage regulator. The proposed converter uses only unidirectional switches, and it can handle voltage sags up to 0.7 p.u. The principle of operation is described, and the soft switching boundaries are obtained. Then, the loss analysis is performed considering two types of semiconductor switches (IGBT and SiC MOSFET). As result, the soft switching regions play an important role in the losses for an IGBT implementation.
DOI:10.1109/COBEP.2017.8257343