Experimental Investigation of Common Mode Current Generation in a Novel Dual Active Bridge Converter ZVS Modulation Pattern
Résumé
This paper deals with the experimental comparison of two modulation patterns for the Dual Active Bridge Converter (DAB) regarding common mode current generation. One of them is the well known Triangular modulation which leads to minimal conduction losses and switches with ZVS and ZCS. The other one is a new modulation pattern proposed by our research group, which makes it possible to switch in a larger operating range with ZVS without having to adjust the switching frequency or the magnetizing inductance of the transformer, which was up to now not possible. The measurement results of the created common mode current were evaluated in the time domain and in the frequency domain for each modulation pattern and an attempt was made to graphically reproduce the switch positions of the two modulation patterns using electrical circuit diagrams in order to conclude the generation of the common mode current. It was discovered experimentally that the proposed novel modulation pattern generates less common mode current for a wide frequency range, although it is switched more often.
Domaines
Energie électriqueOrigine | Fichiers produits par l'(les) auteur(s) |
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