Current Source Isolated Bidirectional Series Resonant DC-DC Converter for Solar Power/Fuel Cell and Energy Storage Application

High frequency isolated bidirectional dual active bridge DC-DC converters and its application to distributed energy systems: an overview

“…To reduce the magnetizing inductance of an of an isolation transformer for a CIBDC converter, a mathematical design approach is presented. This design shows the least possible magnetizing inductance, which is sufficient to maintain the circulating current to achieve ZVS operation [28].…”

“…The bidirectional converters are fed from either a voltage or current source, depending on the input available and output requirement. In voltage-fed IBDCs, non-resonant IBDCs [20], [21] resonant IBDCs [22], [23] and similarly in current-fed, non-resonant [24], [25], resonant network [26]- [28] both this type of converters are discussed respectively with their merits and demerits. The resonant network helps voltage-fed, current-fed IBDC converters improve performance.…”

Soft Switched Current Fed Dual Active Bridge Isolated Bidirectional Series Resonant DC-DC Converter for Energy Storage Applications

“…Circuit element C r aids in avoiding transformer saturation [13][14][15]32]. An inductor Lo can reduce ripples in the load current [28].…”

“…Circuit element Cr aids in avoiding transformer saturation [13][14][15]32]. An inductor Lo can reduce ripples in the load current [28]. The model operating waveforms of the voltage-fed converter and current-fed converter for both forward and reverse operation modes are shown in Figure 3a,b and 3c,d, respectively.…”

“…The magnetizing current in these converters results in more current stress and losses. Voltage-current-fed IBDC converters with resonant networks [28][29][30] can offer a nearly sinusoidal current. This feature provides lower current stress and conduction losses.…”