Motor design approach utilizing regularity of a two-dimensional magnetic field

Author

Kitamura, Masashi ; Kaneda, Junya ; Hino, Noriaki

Author_Institution

Res. Lab., Hitachi Ltd., Ibaraki, Japan

Volume

39

Issue

3

fYear

2003

fDate

5/1/2003 12:00:00 AM

Firstpage

1464

Lastpage

1467

Abstract

An approach for finding and optimizing two-dimensional (2-D) motor geometries, based on the regularity of 2-D magnetic fields, is reported. In particular, solving optimization problems such as cogging torque minimization and maximization of time-averaged motor torque, the effectiveness of our approach in cutting computational time is verified. The elapsed time to find the optimal solution is less than 1/10 of the time by a conventional approach whose objective function is calculated from the toque waveform.

Keywords

Maxwell equations; conformal mapping; electric motors; machine theory; magnetic fields; magnetic flux; optimisation; torque; 2D magnetic field regularity; 2D magnetostatic fields; 2D motor geometries; Laurent series; cogging torque minimization; computational time reduction; conformal mapping; motor design approach; motor torque maximization; optimization problems; shape optimization; time-averaged motor torque; Conformal mapping; Geometry; Magnetic analysis; Magnetic fields; Magnetic flux; Magnetic flux density; Magnetostatics; Maxwell equations; Torque; Two dimensional displays;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2003.810534

Filename

1198500