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Using multilevel inverters in fuel cell & solar cell & wind turbines is increasing. Harmonic reduction techniques in multilevel inverters are considered. Mathematical methods for reducing the harmonic are presented in some of the literatures Mathematical methods are not suitable for high level inverters. These methods analyze harmonics with constant output voltage of each inverter.
In this paper a new structure for asymmetric multilevel converters is presented. The new topology is consisting of N series-connected of two interconnected multilevel converters per phase. The presented circuit is an optimized multilevel converter with minimum DC voltage sources and switches. The investigated topology can generate a large number of levels (odd and even) without increasing the number...
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