A new configurable switched-capacitor based boost inverter with reduced component count for renewable energy applications

Abstract

The most recent advancement in switched-capacitor boost inverters for high-frequency ac systems and solar PV utilization is their reduced component count. SC-based multilevel inverters (MLIs) are the ideal solution for PV applications since they have a larger voltage gain and a sensorless mechanism for self-voltage balancing. This article presents a boost inverter scheme for higher-level output that involves input voltage boosting. The proposed topology can be reconfigured to produce 9 and 13 levels of output voltage with alternative topologies and a voltage gain of four or three, respectively. Twelve semiconductor devices, three capacitors, and a single input source are used to achieve the voltage gain/higher levels. The proposed boost topology has been contrasted with a number of related topologies and empirically validated using a number of experimental findings.

Keywords

• Boost inverter
• Multilevel Inverter (MLI)
• Pulse Width Modulation (PWM)
• Reduced component
• Self-Balancing
• Voltage gain