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In this paper the three-phase 7-level Packed U-Cell (PUC) converter has been employed as a shunt active power filter (APF) to compensate the load harmonics in a power network. Using multilevel converter as APF results in generating low distortion waveforms as well as operating in low switching frequency. A PI controller has been used to compensate the load harmonics and to correct the source side...
In this paper a new single-phase five-level buck-boost active rectifier is introduced called capacitor tied switches (CTS). The proposed rectifier has two independent DC outputs that can be connected to two different loads. Different switching states and the average mode of the proposed topology are analyzed to design the associated controller aims at regulating the two output DC voltages, generating...
In this paper a novel model of the packed U-cell (PUC) inverter is derived considering the concept of single-phase multilevel converters. Based on the proposed model, a voltage balancing controller is designed to apply on the 7-level PUC inverter. The applied controller is in charge of fixing the capacitor voltage in PUC structure at a desired value to have the seven levels of the voltages at the...
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