Author : Nikhil Pikalmunde 1
Date of Publication :28th March 2018
Abstract: In today’s world, where power demand has enhanced significantly, the reliance on flexible energy options has also increased. Our design is an attempt to take a DC input and convert it into a three-phase AC output by a novel 150ᵒ conduction topology. This paper presents a new conduction topology for most common, simple and well known three-phase voltage source inverter. In this modification, each switch conducts 150ᵒ instead of the usual 180ᵒ or 120ᵒ conduction modes. For a star connected load, the output phase voltage becomes seven levels and twelve steps waveform- which are closer to the sinusoidal waveform. This results in a 50% reduction of the total harmonic distortion. A comprehensive study of the three modes of conduction is proposed. To confirm the validity and feasibility of this modification, the simulation is carried out with a three-phase balanced load. The results obtained shows that in comparison with 180ᵒ and 120ᵒ conduction mode, 150ᵒ Conduction mode is better and feasible
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