Magnetic Field Solution in Doubly Slotted Airgap of Conventional and Alternate Field-Excited Switched-Flux Topologies

Author

Gaussens, Benjamin ; de la Barriere, Olivier ; Hoang, E. ; Saint-Michel, Jacques ; Manfe, Philippe ; Lecrivain, M. ; Gabsi, Mohamed

Author_Institution

SATIE, ENS Cachan, Cachan, France

Volume

49

Issue

9

fYear

2013

fDate

Sept. 2013

Firstpage

5083

Lastpage

5096

Abstract

A general solution of the magnetic field in the airgap of conventional and alternate field-excited switched-flux (FE-SF) machines is proposed in this paper. The analytical model is based on the subdomain method. It involves the solution of governing field equations in a doubly slotted airgap using the variable separation method. The complete model is derived and described in a general manner so that it can be easily extended to unconventional FE-SF topologies. By means of example, analytical predictions of airgap field are extensively compared and validated using 2D FE results. FE simulations were performed on a 24-10 classical FE-SF structure and also on a novel 18-11 FE-SF machine with additional spacer teeth.

Keywords

electric machines; finite element analysis; 18-11 FE-SF machine; 24-10 classical FE-SF structure; 2D FE; FE simulation; FE-SF machines; airgap field; alternate field-excited switched-flux topology; conventional field-excited switched-flux topology; doubly-slotted airgap; governing field equation; magnetic field solution; spacer teeth; subdomain method; unconventional FE-SF topology; variable separation method; Exact analytical calculation; Poisson Laplace´s equation; flux-switching; slotting effect; switched-flux;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2013.2254122

Filename

6508898