Title :
Calculation and effects of end-ring impedance in cage induction motors
Author :
Dorrell, David G.
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. of Glasgow, UK
fDate :
3/1/2005 12:00:00 AM
Abstract :
This paper describes a method for calculating the end-ring impedance of a squirrel-cage induction motor using the method of images. The method is verified by using finite-element analysis. A second method is also discussed, although it was found to be too simple to be accurate. The second part of the paper addresses the effect of this impedance variation on the motor performance with particular attention to the starting torque.
Keywords :
electric impedance; finite element analysis; induction motors; rotors; torque; cage induction motors; end-ring impedance; finite-element analysis; impedance variation; motor performance; rotor impedance; starting torque; Aluminum; Copper; Equivalent circuits; Finite element methods; Frequency; Impedance; Induction motors; Rotors; Skin effect; Torque; End-ring; induction motor; rotor impedance;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2004.843337
