Single phase low THD optimised inverter for PV voltage regulation
by Antonio Valderrabano-Gonzalez; Francisco Beltran-Carbajal; Ruben Tapia-Olvera; Julio Cesar Rosas-Caro; Hossam A. Gabbar; Adel M. Sharaf
International Journal of Process Systems Engineering (IJPSE), Vol. 3, No. 1/2/3, 2015

Abstract: This paper illustrates a way to verify optimised angles for five and seven level single-phase inverters. The ability to follow strict angles for switching times is due to a simple synchronising scheme used along with the arctangent method. Power stage is focused to attain the lowest number of switches and DC sources, and can be used in a cascade multilevel strategy. Comparison of harmonic contents and total harmonic distortion is presented for several optimisation strategies carried out on the literature, and a compensation scheme for regulation with two degree of freedom that brings the inverter to have 11 or 15 level and be within the standard is proposed.

Online publication date: Thu, 27-Aug-2015

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