Analysis of the impact of manufacturing dissymmetry on current distribution for magnetically coupled interleaved inverters

The impact of realistic cases of manufacturing dissymmetry on the distribution of the leg currents is presented for magnetically coupled interleaved inverters. The study of the parametric variations of the passive elements constituting the equivalent electrical circuit is carried out with an open loop control strategy. This parametric variation is made in two stages. The first deals with simple cases of dissymmetry that only affect one ICT. The second is based on the worst-case statistics, formed by multiple cases of dissymmetry on several ICTs. This study allows the understanding of the evolution of the currents in the cases of dissymmetry to ensure their control and their balancing. Then, these dissymmetries are simulated with a closed loop control strategy in order to test their impacts on the duty cycles.

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