Effect of Rotor Geometry on Peak and Average Torque of External-Rotor Synchronous Reluctance Motor in Comparison With Switched Reluctance Motor for Low-Speed Direct-Drive Domestic Application

This paper deals with the feasibility of developing an external-rotor synchronous reluctance motor for a low-speed direct-drive domestic application. Here, an attempt is made to identify the rotor geometry which provides high peak, average torque, and the saliency ratio in comparison with those of e...

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Bibliographic Details
Published inIEEE transactions on magnetics Vol. 53; no. 11; pp. 1 - 8
Main Authors Raj, M. Azhagar, Kavitha, A.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.11.2017
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Domestic
Equivalence
external rotor
Feasibility studies
Finite element method
finite-element analysis (FEA)
Geometry
Induction motors
low speed
Magnetism
Reluctance
Reluctance motors
Rotors
Saliency ratio
Shape
switched reluctance motor (SRM)
synchronous reluctance motor (SynRM)
Torque
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Summary:This paper deals with the feasibility of developing an external-rotor synchronous reluctance motor for a low-speed direct-drive domestic application. Here, an attempt is made to identify the rotor geometry which provides high peak, average torque, and the saliency ratio in comparison with those of equivalent external-rotor switched reluctance motor (Ex-R SRM) which has already been developed and tested for the same application. In this context, six different rotor geometries are considered for the feasibility study and their performance characteristics are predicted using finite-element analysis. These results are compared with the equivalent size of Ex-R SRM, and finally, a feasible rotor geometry is proposed for further investigation and for the prototype designing.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2017.2710191