Brushless dc generator without permanent magnet

Author

Moradi, H. ; Yazdi, M. Seyed ; Afjei, E.

Author_Institution

Dept. of Electr. & Comput. Eng., Shahid Beheshti Univ. G.C., Tehran, Iran

fYear

2010

fDate

14-16 June 2010

Firstpage

278

Lastpage

281

Abstract

This paper presents characteristic analysis of a without permanent magnet Brushless dc (WPMBLDC) generator. Proposed configuration is a 9/6 BLDC generator in which permanent magnet is replaced with assisted field coil in the rotor. Due to dc current in the assistant field winding, the magnetic field flows axially through the rotor shaft and closes through the stator teeth and the motor housing. Finite Element (FE) analysis has been carried out to confirm the accuracy of the predicted flux-linkage characteristics, which play a key role in the design process. A prototype WPMBLDC machine has been also built and tested; additionally the accuracy of FE analysis is verified by comparing the calculated results with the experimental measured values.

Keywords

brushless DC motors; finite element analysis; permanent magnet generators; BLDC generator; assistant field winding; finite element analysis; flux-linkage characteristics; magnetic field; motor housing; permanent magnet brushless dc generator; rotor shaft; stator teeth; Character generation; Coils; DC generators; Magnetic analysis; Magnetic fields; Permanent magnets; Rotors; Shafts; Stator windings; Teeth; Assisted Field; Brushless DC generator; FEM;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Electrical Drives Automation and Motion (SPEEDAM), 2010 International Symposium on

Conference_Location

Pisa

Print_ISBN

978-1-4244-4986-6

Electronic_ISBN

978-1-4244-7919-1

Type

conf

DOI

10.1109/SPEEDAM.2010.5545121

Filename

5545121