A New Design of 5L Active Neutral Point Clamped Inverter Topology with Double Voltage Gain

A five-level inverter topology with ANPC structure with reduction in switch count, and inherent voltage boosting capability has been developed in this paper. The developed design has a single DC input source, ten power switches, along with five capacitors arranged to achieve a voltage gain of two, thereby eliminating the need for bulky magnetic components such as transformers or inductors. This voltage gain is achieved through strategic switching and capacitor charging/discharging sequences that allow the inverter to generate five distinct voltage levels at the output. Its structure is inherently symmetrical and scalable, making it exceptionally appropriate for incorporation into both single-phase and three-phase medium-voltage utilization. Comprehensive simulation studies were conducted in PLECS software for both single-phase and three-phase implementations under various operating conditions, utilizing different modulation techniques.