A power line conditioner using cascade multilevel inverters for distribution systems

Hysteresis Current Control Operation of Flying Capacitor Multilevel Inverter and Its Application in Shunt Compensation of Distribution Systems

“…The other method may be to use separate cascade inverter structure with separate dc-link capacitors for each phase without using a transformer. This arrangement however needs a very complex dc-link voltage regulation loop and its complexity will increase 0885-8977/$20.00 © 2006 IEEE with the increase in the number of H-bridge modules [5]. Further, connecting separate dc sources between two converters in a back-to-back arrangement (e.g., in UPFC, UPQC) is not possible because a short-circuit will be introduced when two back-to-back converters are not switching synchronously [8].…”

Simulation Model of Single-Phase Simplified Eleven-Level Inverter

“…Multilevel converters were used only in some high power applications which include high power motor drivers, Power distribution and power conditioning. [2]- [7]. The work reports a generalized, simplified multilevel configuration as shown in Fig.…”

A Review of Multilevel Inverter Based Active Power Filter

“…(a) cascade multilevel inverter is shown. It consists of three single phase full bridges connected in series in this configuration [27]- [30]. If S is equal to number of full bridge cells then the number of output levels is 2S+ 1. with S=3 there will be seven levels in phase voltage and peak magnitude is SVdc .. For active power filter application there is no need of active power output from the inverter.…”