Genetic Algorithm Based Active Front End Rectifier Controlling Scheme for Multi-Cell Converters

Multi-cell converters permit the utilization of AC motor drives for medium and high voltage level applications utilizing low voltage semiconductors. This sort of converter has a multi-pulse transformer which performs the cancelation of the low frequency harmonics created by the three-phase diode rectifiers. However this point of preference, the multi-pulse transformer is bulky, costly, and depends upon power cells, making the transformer topology complex. This work proposes a genetic algorithm based switching approach to decrease the transformer related problems in multi-cell converters. The evolutionary nature of proposed algorithm makes it flexible and can automatically evolve according to requirements provided by objective function.