An efficient and high gain switched-capacitor based multi-level inverter

Abstract

A new switching-capacitor-based boosting multilevel inverter is described in this paper. A nine-level voltage waveform is produced using 10 switches, one-diode, and two-capacitors. Each fundamental cycle contains numerous occurrences of capacitor voltages being linked in parallel with the source voltage, resulting in self-balancing capacitor voltages. Proposed topology has built in polarity changing ability so no H-bridge is required. This paper describes a simple pulse-width modulation system based on logic gates that maintains power balance among the capacitors. For obtaining the higher voltage gain extended topology of proposed topology is also presented. The prototype’s experimental results are provided for verifying the working and boosting capability by four times of source voltage. A thorough comparison with contemporary topologies demonstrates the cost-effectiveness of the suggested topology, as well as the fact that it is a simpler construction that requires less space and consumption of resources.

A 3-layered feedforward back-propagation ANN-based SVPWM control for neutral point clamped converter for PV grid integration

“…In view of simple voltage distribution among power switches and better harmonics nature of input current, multilevel converters are used popularly in medium and high power requirements in recent years. Multilevel converters have replaced the traditional converters working at a similar switching frequency [1,2]. The shift towards the use of better energy generation sources like Solar PV, wind, other renewable energy sources has also demanded the betterment in the converters used along with these sources.…”