Five-level F-type inverter with buck-boost converter-based equalization channels

Multilevel inverters have been widely used in various applications, as they provide output voltage with better quality, lower dv/dt, and Total Harmonic Distortion (THD). inverter such Neutral Point Clamped (NPC) uses a large number of semiconductor devices (IGBTs diodes) which negatively affects the cost efficiency. Recently, three-level (3L) F-type has proposed switch stresses, cost, losses compared to 3L T-type NPC inverters. This paper proposes five-level (5L) an extension for inverter. Like 5L inverter, voltages involved dc-link capacitors should be kept at certain level. To achieve that, buck-boost converter-based Equalization Channels (ECs) are employed. show pros cons comparison between other existing multilevel held. The numerical assessment also shows that architecture kVA rating than conventional Finally, different Simulation experimental results presented. presented viability converter.