Load Flow Analysis of Hybrid AC-DC Power Systems for the Application in Electrified Aircraft Propulsion

Kurzfassung

To reduce the emissions of aviation the electrification of aircraft propulsion is of particular research inter- est. Here, the power provided to the electric propulsors is distributed within the powertrain either in form of direct or alternating current. Therefore, an implementation of power flow simulation is presented, which can be used in aircraft powertrain sizing. The methodology enables bidirectional power flow and adds the possibility to change the voltage level between buses within the system. Furthermore, the proposed methodology accounts for functional dependencies of system parameters, like the converter efficiency on the power flow. The methodology is validated and exemplary applied on an electrified propulsion system topology.