High Voltage Gain Switched-Z-Source Bidirectional DC-DC Converter

The DC-DC converters are the essential modules in electric vehicles, grid interface of renewable energy sources and DC power supplies. This paper presents a novel high gain bidirectional switched Z-source converter. proposed converter utilizes switched-capacitor concept with inductors for voltage gain. wide operating range operation both boost buck mode operation. has common ground between input output, uses only 5 active switches 4 passive elements reduce switch stress. current drawn from low side source is continuous reduced ripple. principle, circuit analysis, design, mathematical model closed loop presented. verified through computer simulation laboratory experiments. experimental results