SET Proceedings 2978-4387 Caravel Press 10.65582/set.2018.238 2018.238 Design of an axial-flux electric machines with amorphous alloy for flywheel energy storage system WangXiaoguang xgwang84@qq.com HuXiong LiuLingyun Hubei Collaborative Innovation Center for High-efficiency Utilization of Solar Energy, Hubei University of Technology, Wuhan 430068, China Hubei Key Laboratory for High-efficiency Utilization of Solar Energy and Operation Control of Energy Storage System, Hubei University of Technology, Wuhan, 430068, P. R. China Hubei Power Grid Intelligent Control and Equipment Engineering Technology Research Center, Hubei University of Technology, Wuhan, 430068, P. R. China 28022019 17 4 978-0-85358-327-1 423 428 28 February 2019 © 2018 Copyright WSSET 2019

This paper presents an axial flux permanent-magnet (AFPM) machine used in flywheel energy storage system (FESS). Amorphous alloy is used in the stator, which can reduce coreloss remarkablely when the FESS is working in high-frequency. A new multi air-gap AFPM machine with multi-rotor and multi-stator is proposed, and the different numbers of motors can make up different power of the FESS. A 3-D finite element method was used to analyses the design and performances of AFPM, the result shows that the AFPM machine with amorphous alloy have lower iron loss than that with silicon lamination, with can improve the efficiency of FESS effectively.

 Axial flux permanent-magnet (AFPM) machine flywheel energy storage system (FESS) 3-D finite element method Amorphous alloy 21 to 23 August 2018 17th International Conference on Sustainable Energy Technologies SET2018 17 Wuhan, China