Medium and Large Vector-Based SVPWM Technique for Five-Phase Two-Level Inverter

In recent years, interest in the use of multi-phase (more than three-phase) dc/ac inverters applications such as electric vehicles, traction, more aircraft, ship propulsion, aerospace applications, etc. has been increasing day by day. The paper presents Discontinuous Space Vector Pulse Width Modulation (DSVPWM) technique for control a five-phase two-level inverter. DSVPWM algorithm uses zero, medium and large vectors combination. When calculating dwell times, calculations are made directing Vref to Sector-1 regardless which sector it falls into. Thus, complex reduced. controlled inverter that feeds an RL load is simulated using MATLAB/Simulink-Simscape blocks. To demonstrate effectiveness used algorithm, inverter's output voltages, current waveforms their FFT analysis given different modulation indexes switching frequencies.