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Impact of DC-Bias on dual active bridge control and how to avoid it

  • The Dual Active Bridge (DAB) is a very promising topology for future power converters. However, careless operation can lead to a DC component in the transformer current. The problem is further exacerbated when the phase shift changes during operation. This work presents a study of DC bias effects on the DAB with special regard to transient effects introduced by sudden shifts in the output load. We present a simple yet effective approach to avoid DC bias entirely.

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Author of HS ReutlingenWattenberg, Martin; Schwalbe, Ulf
Erschienen in:21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe), Genova, Italy, September 2-5, 2019
Place of publication:Piscataway, NJ
Document Type:Conference proceeding
Publication year:2019
Tag:DC power supply; ZVS converters; high frequency power converter; soft switching; transformer
Page Number:8
First Page:1
Last Page:8
DDC classes:620 Ingenieurwissenschaften und Maschinenbau
Open access?:Nein
Licence (German):License Logo  In Copyright - Urheberrechtlich geschützt