Estudio de corriente circulante y de conmutación suave en el convertidor dual active bridge : diseñar y simular una estrategia para reducir la corriente circulante en un convertidor dual active bridge.

Abstract

The increasing number of electric vehicles requires chargers with high power demand for fast and efficient charging. To achieve this, the Dual Active Bridge converter is one of the reference topologies in this field of application, because it has a high efficiency, low conduction losses applying different types of modulation. During the development of this work, the converter is studied by applying three types of modulation: Single Phase Shift, Optimal Phase Shift and Triple Phase Shift. It is a study using PSIM simulation software, considering the effect of the mentioned modulation techniques on the circulating current and the effect of temperature on the converter. It starts from the specifications of a commercial electric vehicle charger, performing simulations for different power operating points for each of the chosen modulations to conclude which of these reduce the circulating current, obtains the lowest losses in a range of operation from minimum power to reach the maximum power.