Power electronic transformer with reduced number of switches: Analysis of input clamp circuit and a modulation strategy to eliminate input snubber requirement

Gysler Castelino, Kaushik Basu, Ranjan Gupta, Ned Mohan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations

Abstract

This paper presents an analysis of the protective snubber circuits in a high frequency transformer (HFT) linked three phase ac/ac power conversion system with reduced number of switches. This topology provides single stage power conversion with bidirectional power flow capability and input power factor correction. This topology is important because of reduced number of switches in the voltage source side (usually the high voltage side). The presence of non-ideal leakage inductance in transformer windings necessitates the use of a snubber circuit for the safe commutation of leakage energy. A new modulation technique is proposed in order to reduce the protection requirements in the source side. This topology with the proposed control technique has been analyzed and simulated. The simulation results confirm the analysis and predicted advantages.

Original languageEnglish (US)
Title of host publicationProceedings - IECON 2010, 36th Annual Conference of the IEEE Industrial Electronics Society
Pages656-661
Number of pages6
DOIs
StatePublished - 2010
Event36th Annual Conference of the IEEE Industrial Electronics Society, IECON 2010 - Glendale, AZ, United States
Duration: Nov 7 2010Nov 10 2010

Publication series

NameIECON Proceedings (Industrial Electronics Conference)

Other

Other36th Annual Conference of the IEEE Industrial Electronics Society, IECON 2010
CountryUnited States
CityGlendale, AZ
Period11/7/1011/10/10

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