Prediction of cogging torque using the flux-MMF diagram technique

An improved approach to predicting cogging torque in permanent magnet motors using the flux-MMF diagram technique is presented and validated. A brief review of cogging torque calculation and minimization techniques is included. It is shown that the flux-MMF diagram can be constructed for any one pol...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on industry applications 1996-05, Vol.32 (3), p.569-576
Main Authors: Deodhar, R.P., Staton, D.A., Jahns, T.M., Miller, T.J.E.
Format: Article
Language:English
Subjects:
AC motors
Forging
Industry Applications Society
Magnetic analysis
Magnetic flux
Minimization methods
Permanent magnet motors
Permeability
Rotors
Torque
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:An improved approach to predicting cogging torque in permanent magnet motors using the flux-MMF diagram technique is presented and validated. A brief review of cogging torque calculation and minimization techniques is included. It is shown that the flux-MMF diagram can be constructed for any one pole of a permanent magnet machine using the demagnetization characteristic of the permanent magnet; then by applying the principle of virtual work, cogging torque can be predicted. It is also shown that the flux-MMF diagram technique is a truly universal technique of cogging torque prediction and gives greater insight into many of the methods used for cogging torque minimization.
ISSN:0093-9994
1939-9367
DOI:10.1109/28.502168