A Fuel Cell based Hybrid Boost Three-Level DC–DC Converter With High Voltage Gain

The demands of FC technology with high performance is very interesting alternative on supplement the electric system generation, due to the persistent cost reduction of the overall system a lot of works have been done during the design and implementation of high efficiency DC-DC converters applicable in FC . This paper proposes for improving the power-conversion efficiency and to obtain high voltage gain by reducing voltage stresses at a switch node of boost converter by using snubber cell which consists of inductors, capacitor, as well as diodes. In the proposed converter, two inductors with same level of inductance are charged in parallel during the switch –on period and are discharged in series during the switch-off period. Finally the improved boost converter topology results have shown in matlab