Investigation of the torque calculation of a DC PM motor

Author

Hamler, Anton ; Kreca, Bogdan ; Hribernik, Boiidar

Author_Institution

Fac. of Tech. Sci. Maribor, Slovenia

Volume

28

Issue

5

fYear

1992

fDate

9/1/1992 12:00:00 AM

Firstpage

2271

Lastpage

2273

Abstract

The determination of the reluctance torque calculation error for different rotor positions using the finite-element method is presented. For this purpose, a special model of the motor with a full rotor is used. The reluctance torque value of this model is known for all rotor positions. Each deviation of the calculated torque from this value represents the error of the calculation. The torques are calculated according to the Maxwell stress method (MSM), the virtual work method, and the magnetizing current method. A comparison of measurement and calculation results is included. It has been established that the best results are obtained by the MSM method with the smallest number of elements. When this method is used, it is necessary to choose the proper integration path and to confine the discretization refinement to it

Keywords

DC motors; finite element analysis; machine theory; permanent magnet motors; rotors; torque; DC PM motor; Maxwell stress method; discretization refinement; finite-element method; integration path; magnetizing current method; reluctance torque; rotor positions; virtual work method; DC motors; Finite element methods; Magnetic field measurement; Magnetic fields; Magnetic flux; Reluctance motors; Rotors; Shape; Stress; Torque;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.179466

Filename

179466