DC-DC converter with isolation transformer for traction vehicles application — Simulation studies

Single phase voltage converter structure with isolation transformer for applications in traction vehicles is presented. This paper shows simulation model of this type of converter and transformer model with modern magnetic material in OrCAD-PSpice simulation program. Two PWM control techniques are compared in order to eliminate voltage and current oscillations in primary winding of the transformer, decrease large peaks of current, decrease large system loss and improve system efficiency. Author shows a comparison of the PSpice simulation results with the real results.