Extended Analysis of Non-Isolated Bidirectional High Gain Converter

Abstract

This paper focuses on developing a non-isolated bidirectional high gain converter suited for EV charging. This converter has two ports with bidirectional features which functions in both buck and boost operation. This converter is shown to attain high voltage gain with high efficiency while using less components. To verify the stability of the bidirectional high gain converter, state space averaging is performed and the stability curves are plotted for both boost and buck operation. The buck and boost characteristics of this converter are observed through simulation using MatLab, for 1.2 kW system and results are presented for the analysis. Based on this analysis the hardware of the bidirectional converter is developed and results are obtained and compared.

Keywords

• dc-dc power converters
• bidirectional
• gain
• stability analysis
• matlab