Performance Improvement of an External-Rotor Split-Phase Induction Motor for Low-Cost Drive Applications Using External Rotor Can

Author

Holik, Piotr J. ; Dorrell, David G. ; Popescu, Mircea

Author_Institution

Dept. of Electron. & Electr. Eng., Glasgow Univ.

Volume

43

Issue

6

fYear

2007

fDate

6/1/2007 12:00:00 AM

Firstpage

2549

Lastpage

2551

Abstract

This paper describes the performance of an external-rotor split-phase induction motor for use in such applications as ceiling fans (although the pole number would be much higher than the 2-pole machine studied here). This machine has short axial length with respect to its diameter. The auxiliary winding is only used to start the machine and it is wound orthogonal to the main winding and connected in parallel to it using a centrifugal switch. The paper highlights how an external can, which connects the two end-rings, can be used to improve the motor performance. The paper describes a 2-D finite element analysis (FEA) of the machine to show the performance and also to describe the pulsating torque of the machine

Keywords

finite element analysis; induction motors; rotors; torque; 2D finite element analysis; FEM; auxiliary windings; ceiling fans; centrifugal switch; external-rotor split-phase induction motor; pulsating torque; Finite element methods; Impedance; Induction motors; Machine windings; Magnetic analysis; Performance analysis; Rotors; Stator windings; Switches; Torque; Finite elements; split-phase induction motors;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2007.893304

Filename

4202762