Using fourier series to derive optimal soft-switching modulation schemes for dual active bridge converters

Effective elimination of harmonics on the part of chosen dc bus in dual active type converter

“…In all the specified methods only one inductance is placed at the centre of two bridge and hence the phenomenon like dead-time of switching, parasitic value of capacitor cannot be taken into consideration whenever three level switching category is used along with single phase dual type bridge, the linear domain category involves complex steady state process. In order to cross all this shortcomings, even much new approaches are being carried out for analyzing the harmonics.But,only the procedures have been framed incorporating easy basic components [13] [14]. Hence, this work clearly depicts the analytical procedure by doing harmonic investigation to clearly find the borderline of ZVS for three phase as well as single phase dual type bridge converter for the complete bound of operation.…”