High Step-up Converter with Diode Capacitor Technique for Renewable Energy Applications

This paper presents a high step-up boost converter with diode capacitor technique. In this topology an additional stage of voltage multiplier cells (diodes and capacitors) is incorporated into the conventional boost converter which will increase the voltage gain and efficiency of the converter. The peculiarity of this new method is that the switching losses, ripples and the stresses are low. Another important feature of this converter is the lower blocking voltage across the controlled switches compared to the other existing circuits. By using the metal oxide semiconductor field effect transistors (MOSFETs) with reduced on-resistance further minimizes the conduction losses. The simulation is done using PSIM and the simulation results prove that the converter can be applied to high performance, high voltage applications.