Investigation of a three-phase flux-switching permanent magnet machine for downhole applications

Author

Chen, Anyuan ; Nilssen, Robert ; Nysveen, Arne

Author_Institution

Dept. of Electr. Eng., Norwegian Univ. of Sci. & Technol., Trondheim, Norway

fYear

2010

fDate

6-8 Sept. 2010

Firstpage

1

Lastpage

5

Abstract

This paper investigates a newly designed flux-switching permanent magnet machine with 12 stator poles and 14 rotor poles for downhole application where the ambient temperature is around 150°C. This machine having an outer diameter of 100 mm and an active axial length of 200 mm can provide ~2.7 kW with an output torque up to 25 Nm, an efficiency of ~88% and power factor of 0.87. The maximum temperature in the machine is around 200°C without external cooling. Additionally, the machine losses, inductance and magnet demagnetization field are also studied.

Keywords

demagnetisation; drilling machines; permanent magnet machines; rotors; stators; downhole application; machine losses; magnet demagnetization field; rotor poles; size 100 mm; size 200 mm; stator poles; three-phase flux-switching permanent magnet machine; Finite element methods; Iron; Magnetic flux; Rotors; Stator windings; Torque; Downhole application; finite element method; flux-switching; high torque; permanent magnet machine;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines (ICEM), 2010 XIX International Conference on

Conference_Location

Rome

Print_ISBN

978-1-4244-4174-7

Electronic_ISBN

978-1-4244-4175-4

Type

conf

DOI

10.1109/ICELMACH.2010.5608320

Filename

5608320