Thermal Analysis of DAB Converter Core used in Hybrid Aircraft Propulsion System

Abstract

The interest in the hybrid electric aircraft propulsion is increasing. Different goals must be guaranteed for a correct performance of an electric propulsion system for aircraft: reliability, low weights, performance in critical conditions. The paper is focused on the thermal analysis of the medium/high frequency core transformers used for the coupling between the battery storage system and the electric motor in electric aircrafts. A multi-physics simulation is carried out to solve the transient thermal problem for the transformer during electrical assisted phase of the aircraft.