Title :
Performance Analysis of a Wedgy Airgap Disk Coreless Permanent Magnet Synchronous Motor
Author :
Wang, Xiaoyuan ; Du, Jingjuan
Author_Institution :
Sch. of Electr. Eng. & Autom., Tianjin Univ.
Abstract :
A wedgy airgap disk coreless PMSM (permanent magnet synchronous motor) is proposed, consisting of only stator (armature) winding and twin rotor system a double sided rotor with internal stator. No stator and rotor ferromagnetic cores have been used. And the axial air gap thickness of this PMSM in inner diameters equals to 8 mm, while the axial air gap thickness in outer diameters is 5.4 mm. The FEM analysis has been done to prove that the peak value of the magnetic flux density can be about 0.7T. There are high efficiency of 92% and high power factor of 0.99 in this low speed 250 W PMSM. There is about 30% higher efficiency in this motor than that of Y2-series three-phase asynchronous motor. The wedgy airgap disk coreless PMSM will be widely used in electric vehicle, hand-held electric tool, mechanical arm and so on
Keywords :
finite element analysis; permanent magnet motors; synchronous motors; 250 W; 5.4 mm; 8 mm; 92 percent; Y2-series three-phase asynchronous motor; finite element analysis; magnetic flux density; stator winding; wedgy airgap disk coreless permanent magnet synchronous motor; Magnetic analysis; Magnetic cores; Magnetic flux density; Performance analysis; Permanent magnet motors; Reactive power; Rotors; Stator cores; Stator windings; Synchronous motors; FEM; Halbach array; PMSM; disk coreless; wedgy airgap;
Conference_Titel :
Mechatronics and Automation, Proceedings of the 2006 IEEE International Conference on
Conference_Location :
Luoyang, Henan
Print_ISBN :
1-4244-0465-7
Electronic_ISBN :
1-4244-0466-5
DOI :
10.1109/ICMA.2006.257509
