Next generation design framework for the aircraft electric power system

Kurzfassung

Comprehensive understanding and analysis of the more electric aircraft network architecture (MEA) usually require a powerful simulation framework, which allows modelling, simulation and post-processing of aircraft electric power systems. Since the electric power network in the MEA typically covers several physical domains such as electrical systems, magnetic systems, mechanical systems and control, a modelling language to be selected for the design framework has to be capable of modelling multi-domain systems. In this regard, Modelica - an object oriented, equation based modelling language has been chosen as a candidate for modelling the extended electric network in JTI SGO project. By hand of some study cases at supplier level and airframer level, the capability of the Modelica technique based design framework was tested, demonstrated and improved. The selected applications are system specification, component design and virtual testing, which are associated to different phases of the design process for the aircraft electric power system. Essential components which were modelled are the generator, power converters and electromechanical actuators. Modelica and the simulation suite Dymola were demonstrated to fulfil all stated demands.