W. J. Choy, G. Buticchi, A. Marquez, M. Galea, J. I. Leon
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Optimized Phase-Shift Control for dc-link Current Minimization in Automotive Multi Converter Applications
The increasing complexity of the embedded power electronics system for automotive applications has pushed engineers towards multiport converters to be able to integrate multiple energy sources into a single converter structure. This paper deals with the optimization of the dc link current for a specific multiport converter realized by an inverter and two dc-dc converters. A simplified model based on an interleaved boost converter and a voltage source inverter is used for the simulations. The selection of the optimal phase-shift between the PWM carriers of each converter allows for a marked decrease of the dc-link current, with obvious benefits in terms of capacitor current stress.
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