Development of a Bidirectional DC–DC Converter with Rapid Energy Bidirectional Transition Technology

Bidirectional DC–DC converters are key devices in the DC distribution system and energy storage (ESS). It is important to consider safety of elements converter for rapid conversion power direction. Damages may occur power-related components circuit if direction inductor current or capacitor voltage changes instantaneously. To make flow change smoothly quickly, this research proposed a bidirectional with transition technology implemented architecture. The added resonance path based on LC resonant circuit, allowing through path. Therefore, element could be quickly converted without causing surges. Analyses operating step-up mode, step-down operation mode presented. architecture had high voltage-conversion ratio simple A prototype full load 500 W, low side 24 V, 200 V was developed prove concept. feasibility verified by simulation results experimental using converter. maximum efficiencies were 95.3% 93.8% respectively. Under full-load conditions, transient time from 17.7 ?s, 19.3 ?s.