A New Eight Switch Seven Level Boost Active Neutral Point Clamped (8S-7L-BANPC) Inverter

Abstract

A new boost Active-Neutral-Clamped (ANPC) voltage boosting inverters are appealing for low dc-link voltage demand. Recent boost ANPC topology has demonstrated a 1.5 times voltage gain, but the number of switches has a higher number. This paper proposed an improved boost ANPC topology with 1.5 voltage gain using the least number of switches. Further, the number of conducting switches has been reduced remarkably which enhances the system efficiency. The seven-level (7L) output voltage levels are achieved using a floating capacitor with self-voltage balancing capability. The proposed topology has been analyzed and compared to the ANPC topologies proposed in recent years. For the validation of the theoretical aspect of the proposed topology, the experimental findings have been compiled in the paper.

Keywords

• Multilevel inverter (MLI)
• active neutral point clamping (ANPC) inverter
• seven-level (7L)
• boost inverter
• reduced switch count