Dual Active Bridge Converter With Variable Switching Frequency Modulation to Maintain ZVS

Conference paper (2023)

Authors

D. Lyu DC systems, Energy conversion & Storage - EEMCS
C.A. Straathof Electrical Engineering, Mathematics and Computer Science
Thiago B. Soeiro DC systems, Energy conversion & Storage - EEMCS
Z. Qin DC systems, Energy conversion & Storage - EEMCS
P. Bauer DC systems, Energy conversion & Storage - EEMCS
Research Group
DC systems, Energy conversion & Storage (EEMCS) (TU Delft)
DAB Dual Active Bridge Soft switching Variable switching frequency Zero-voltage switching
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Published Date

2023

Language

English

Reuse Rights

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Electrical Sustainable Energy

Research Group

DC systems, Energy conversion & Storage

Abstract

A variable switching frequency modulation for the Dual Active Bridge (DAB) converter is proposed in this paper. With this variable switching frequency modulation, the DAB converter can be operated in the ZVS-beneficial operational modes without the necessity to transition to others, thus a larger ZVS range for the DAB converter can be achieved. This modulation has potential of providing higher power efficiency and better EMI performance for the DAB converter in wide voltage range applications such as Electric Vehicle (EV) charging. A DAB converter with the variable frequency modulation method is simulated, and its effectiveness on the ZVS performance is demonstrated.