Multi-Input Boost DC-DC Converter with Continuous Input-Output Current for Renewable Energy Systems

Abstract

A new multi-input boost dc-dc converter topology is proposed in this paper. The input current waveforms of all input sources are continuous that makes it suitable for renewable energy applications. In addition, the output current of the converter is continuous which is desired in case of connection of the output terminals to the inverter. The steady-state analysis, the small-signal modelling of the converter and the control-output transfer functions of the system were calculated for the controller design. The performance of the converter was validated using simulation results.