Title :
Design of variable air gap axial flux permanent magnet machine for extending the speed region
Author :
Qiping Shen ; Qiwei Xu
Author_Institution :
State Key Lab. of Power Transm. Equip. & Syst. Security & New Technol., Chongqing Univ., Chongqing, China
Abstract :
For extending the speed region of axial flux permanent-magnet (AFPM) machine, this paper presents a novel AFPM, which air gap length can be variable dynamically in operation. The variable mechanism, electromagnetic design method, flux-weakening performance and so on are all analyzed, and then a 5kW 77.5Nm variable air-gap AFPM is designed to compare with a fixed air-gap AFPM.
Keywords :
air gaps; permanent magnet machines; AFPM machine; electromagnetic design method; flux-weakening performance; power 5 kW; speed region extension; variable air gap axial flux permanent magnet machine design; variable mechanism; Air gaps; Atmospheric modeling; Core loss; Harmonic analysis; Rotors; Stators; Torque;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2014 17th International Conference on
Conference_Location :
Hangzhou
DOI :
10.1109/ICEMS.2014.7013637
