Surface PM Machine Parameter Selection for Wide Field-Weakening Applications

Author

Soong, W.L. ; Reddy, P.B. ; El-Refaie, A.M. ; Jahns, T.M. ; Ertugrul, N.

Author_Institution

Univ. of Adelaide, Adelaide

fYear

2007

Firstpage

882

Lastpage

889

Abstract

Recent work on fractional-slot pitch, concentrated winding (FSCW) surface PM machines has shown that these machines can achieve a wide constant-power speed range. This paper shows that defining the allowable machine design parameter plane using the characteristic current and the peak back-emf provides useful insights into how application requirements restrict the machine parameters. The parameter plane also shows the influence of changing the parameters on the machine´s current rating and magnet losses. As an example of a practical application, the parameter plane is used to study the FreedomCAR traction motor drive requirements and the characteristics of five FSCW surface PM machine designs.

Keywords

permanent magnet machines; traction motor drives; FSCW; FreedomCAR traction motor drive; constant-power speed range; machine parameters; peak back-emf; surface PM machine parameter selection; wide field-weakening applications; Arm; Inductance; Machine windings; Power capacitors; Power generation; Stator windings; Surface treatment; Torque; Traction motors; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2007. 42nd IAS Annual Meeting. Conference Record of the 2007 IEEE

Conference_Location

New Orleans, LA

ISSN

0197-2618

Print_ISBN

978-1-4244-1259-4

Electronic_ISBN

0197-2618

Type

conf

DOI

10.1109/07IAS.2007.138

Filename

4347887