Analysis of pulsating torque in squirrel cage induction machines by investigating stator slot and rotor bar dimensions for traction applications

Author

Yingjie Li ; Silong Li ; Sarlioglu, Bulent

Author_Institution

Wisconsin Electr. Machines & Power Electron. Consortium (WEMPEC), Univ. of Wisconsin-Madison, Madison, WI, USA

fYear

2013

fDate

15-19 Sept. 2013

Firstpage

246

Lastpage

253

Abstract

The purpose of this paper is to analyze the pulsating torque in squirrel cage induction machines by studying the stator slot and rotor bar dimensions. To mitigate the pulsating torque produced by the non-sinusoidal spatial distribution of magnetomotive force (MMF) and permeance in the air-gap, design options are evaluated at various stator and rotor slot dimensions and operating conditions. Analytical and finite element analyses are conducted to evaluate the influences of changing slot dimensions to the output average and ripple torque. Design trade-offs are also discussed in the end.

Keywords

air gaps; finite element analysis; rotors; squirrel cage motors; stators; traction motors; MMF; air-gap; finite element analysis; magnetomotive force; nonsinusoidal spatial distribution; pulsating torque analysis; ripple torque; rotor bar dimensions; squirrel cage induction machines; stator slot; traction applications; Harmonic analysis; Inductance; Induction machines; Rotors; Stator windings; Torque;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy Conversion Congress and Exposition (ECCE), 2013 IEEE

Conference_Location

Denver, CO

Type

conf

DOI

10.1109/ECCE.2013.6646707

Filename

6646707