This paper presents a 2 kW three-phase Dual Active Bridge converter (DAB3) which converts power between 42 V and 300 V and which is easily scalable up to 20 kW. The DAB3 has been selected for this application based on detailed simulations comparing different suitable topologies. The circuits investigated in this paper can operate in a soft-switching manner enabling a reduction in device switching losses and therewith an increase in switching frequency. Candidate topologies under a close investigation are the single-phase dual active bridge (DAB1) and the three phase dual active bridge (DAB3). Key-features are the galvanic isolation, reduced cooling costs, and the capability of transferring energy over a wide voltage range. This paper presents the converter breadboard design, the controller design and measurements.
| Filename: | EPE Journal 14-2 - 4 - Walter |
| Filesize: | 368.2 KB |
