Abstract
This work makes a novel contribution to the analysis of quasi-square-wave operationof dual-active bridge (DAB) converter by deriving equations for root mean square(RMS) and average device currents and RMS and peak inductor/transformer currents –these equations are useful in predicting device and passive component losses. Quasisquare-wave operation of the DAB converter is verified through Saber simulations andexperimentation, validating the mathematical analysis. It is observed that quasi-squarewavemode improves average power transfer and the converter efficiency besidesenhancing its soft-switching region without introducing additional passive components.The effect of quasi-square-wave on RMS and peak currents of devices andtransformer/inductor is also discussed.
| Original language | English |
|---|---|
| Journal | International Journal of Electronics Letters |
| Volume | 4 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Aug 2014 |
Keywords
- dual-active bridge; quasi-square-wave; average current; RMS current; peak current; dead-time; soft-switching