A Novel Topology of a Three-Phase Five-Level Reduced Switch Reduced Component Multilevel Inverter

This paper introduces a novel three-phase Reduced Switch Reduced Component (RSRC) Multilevel Inverter (MLI) topology to reduce switching losses, cost-effectiveness, and overall performance within power electronic systems. The suggested topology addresses the challenges of complexity and high cost associated with traditional MLIs by significantly minimizing the number of necessary components. Our design process, in-depth analysis, and comprehensive evaluation center around two key performance indicators: voltage waveform quality and total harmonic distortion (THD). To illustrate the superiority of the new design, we draw comparative analyses between our proposed topology and prevailing MLI topologies, underlining the novel advantages our design offers. Particularly designed for compact applications, our topology is relevant to e-mobility loads. Simulation results show that applying an assortment of Pulse Width Modulation (PWM) techniques makes a notable reduction in THD achievable, thus solidifying the proposed topology as a feasible and economically-sound solution for future prototyping. Future work will explore applying optimization methods to regulate duty cycle signals and introducing advanced modulation techniques for achieving further THD reduction.