Application and challenges of power electronics for variable frequency electric power system of more electric aircraft

The use of electric power is increasing in more electric aircraft (MEA). On-board constant frequency (CF) AC electric power system (EPS) can not provide enough power for MEA increasing electric loads. As a result, EPS of MEA is moving from CF AC to variable frequency (VF) AC systems. Typical CF and VF EPS architectures are presented and compared. The application of power electronics in aircraft EPS is presented. New requirements and challenges for the design of power electronics equipments on VF EPS of MEA are also discussed.