A new boundary element method for calculating the magnetic field of permanent magnetic machine

Author

Ruimin, Tao ; Wang Erzhi

Author_Institution

Shenyang Univ. of Technol., China

Volume

2

fYear

2001

fDate

37104

Firstpage

1181

Abstract

Compared with the finite element method (FEM), one dimension can be reduced in magnetic field calculation using the boundary element method (BEM). It has been proved by this paper that the convergence of integrand of integrated equation is equal to zero in magnetic field calculation and so that again one more dimension can be reduced in the investigated problems. For the 3D magnetic problem, the quadratic form function has been chosen as the correspondent magnetic potential and the singular integral has been avoided. Using these results, a new boundary element method has been developed. As an example, a 3D static magnetic field of 160 kVA rare earth permanent magnet machine with 16 poles is calculated by this new method. The calculation result shows that this new method possesses high precision

Keywords

boundary-elements methods; machine theory; magnetic fields; permanent magnet machines; 16 pole machine; 160 kVA; 3D static magnetic field; boundary element method; integrated equation integrand convergence; magnetic field calculation; magnetic potential; permanent magnet machine; quadratic function; rare earth permanent magnet machine; Boundary conditions; Boundary element methods; Convergence; Earth; Finite element methods; Integral equations; Laplace equations; Magnetic analysis; Magnetic domains; Magnetic fields;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2001. ICEMS 2001. Proceedings of the Fifth International Conference on

Conference_Location

Shenyang

Print_ISBN

7-5062-5115-9

Type

conf

DOI

10.1109/ICEMS.2001.971891

Filename

971891