Title :
3-D Analytical Modeling of No-Load Magnetic Field of Ironless Axial Flux Permanent Magnet Machine
Author :
Huang, Yunkai ; Ge, Baoyun ; Dong, Jianning ; Lin, Heyun ; Zhu, Jianguo ; Guo, Youguang
Author_Institution :
Sch. of Electr. Eng., Southeast Univ., Nanjing, China
Abstract :
A three-dimensional analytical modeling of the magnetic field of the stator-ironless axial flux permanent magnet (AFPM) machine under open-circuit condition is presented in this paper. It involves the analytical solution of the governing field equations in the region between back-irons in the cylindrical coordinate, in which the magnets are assumed to be axially magnetized and have constant relative recoil permeability. The proposed modeling method is applied to a specific AFPM machine, and the analytical results are in good agreement with those of three-dimensional finite element analysis (FEA).
Keywords :
finite element analysis; magnetic permeability; permanent magnet machines; 3D analytical modeling; constant relative recoil permeability; cylindrical coordinate; field equations; ironless axial flux permanent magnet machine; no-load magnetic field; open-circuit condition; specific AFPM machine; stator-ironless AFPM machine; stator-ironless axial flux permanent magnet machine; three-dimensional FEA; three-dimensional finite element analysis; Analytical models; Boundary conditions; Equations; Magnetic flux; Magnetic resonance imaging; Magnetic separation; Mathematical model; Analytical modeling; Bessel function; axial flux; magnetic field;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2012.2194699
