Bidirectional Resonant DC-DC Converter for Microgrid applications

2020 International journal of recent technology and engineering  
This paper presents a non-isolated bidirectional softswitching dc-dc converter for DC microgrid energy storage synchronization. To assist the soft switching of switches and diodes, the LCL resonant circuit is applied and an input end halfbridge boost converter is enforced. Using the voltage doubler circuit introduced on the output side, a voltage gain of 2X is achieved. Through the non-isolated circuit, the total voltage gain is obtained. The capacitive divider halves the voltage on the greater
more » ... tage on the greater hand. The circuit performs a high frequency ripple of low output voltage. Diodes guarantee zero voltage Turn ON for switches and zero current turn ON and turn OFF during buck / boost operation Although no internal snubber circuits are available, the circuit ensures low voltage stress across semiconductor systems.
doi:10.35940/ijrte.e6704.018520 fatcat:hot6rld2arbcvevrjbbydbojvi