Analysis of Flux Switching Machine for Flywheel Energy Storage Systems in Electrical Vehicles

摘要

High energy density, efficiency, and life cycle and rapid charge/discharge are merits of flywheel energy storage systems (FESSs) which make them noteworthy in various fields. This paper proposed a double-stator Flux Switching Permanent Magnet Machine (FSPM) for FESSs. Since there are no windings and Permanent magnets (PMs) on the rotor structure, high speed and low rotor loss operation are feasible, which are appropriate for FESSs in electrical vehicles. Also, the double air gap structure facilitates rotor thermal ventilation at vacuum. The PM and core material are chosen somewhat that the core losses and demagnetization will be minimized. Finally, two structures of FSPM are simulated and analyzed by Finite Element Analysis (FEA).