Wide range ZVS operation of dual active bridge DC-DC converters using adaptive modulation and low coupling factor transformers

Riedel, J, Holmes, G, Teixeira, C and McGrath, B 2016, 'Wide range ZVS operation of dual active bridge DC-DC converters using adaptive modulation and low coupling factor transformers', in Proceedings of the18th European Conference on Power Electronics and Applications (EPE'16 ECCE Europe), Karlsruhe, Germany, 5 - 9 September 2016, pp. 1-12.


Document type: Conference Paper
Collection: Conference Papers

Title Wide range ZVS operation of dual active bridge DC-DC converters using adaptive modulation and low coupling factor transformers
Author(s) Riedel, J
Holmes, G
Teixeira, C
McGrath, B
Year 2016
Conference name EPE'16 ECCE Europe
Conference location Karlsruhe, Germany
Conference dates 5 - 9 September 2016
Proceedings title Proceedings of the18th European Conference on Power Electronics and Applications (EPE'16 ECCE Europe)
Publisher IEEE
Place of publication United States
Start page 1
End page 12
Total pages 12
Abstract One of the central requirements of a Dual Active Bridge (DAB) converter is to operate under Zero Voltage Switching (ZVS) conditions, to reduce switching losses and increase operating efficiency. This paper shows how frequency domain analysis can be used to design and operate a DAB to ensure ZVS across the entire operating range by using transformers with a reduced winding coupling factor and adaptive 3-level bridge modulation, while also including second order effects. The approach is shown to achieve experimentally measured efficiencies between 96.5% and 98.5% over the entire power range for an optimised DAB converter stage (>1 kW).
Subjects Industrial Electronics
ISBN 9789075815245
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