Calculation of d- and q-axis inductances of PM brushless ac machines accounting for skew

Author

Chen, Y.S. ; Zhu, Z.Q. ; Howe, D.

Author_Institution

Coll. of Electr. Eng., Zhejiang Univ., Hangzhou, China

Volume

41

Issue

10

fYear

2005

Firstpage

3940

Lastpage

3942

Abstract

A hybrid two-dimensional (2-D) finite-element/analytical technique is described for predicting the d-axis and q-axis inductances of permanent magnet (PM) brushless ac machines, with due account for the influence of skew. Predicted inductances are compared with measured values for two machines having identical stators, which are skewed by one slot-pitch, but which have different rotor topologies, one having surface-mounted magnets and the other having interior magnets.

Keywords

AC motors; brushless machines; electromagnetic induction; finite element analysis; inductance measurement; magnetic devices; permanent magnet machines; rotors; stators; PM brushless ac machines; finite element technique; inductances; interior magnets; permanent magnet machines; rotor topologies; skew; stators; surface-mounted magnets; AC machines; Finite element methods; Inductance; Machine windings; Magnetic analysis; Magnetic flux; Permanent magnets; Saturation magnetization; Stators; Two dimensional displays; Brushless machine; permanent magnet (PM); permanent magnet (PM) machine; winding inductance;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2005.854976

Filename

1519495