Title :
Sources and characteristics of unbalanced magnetic pull in 3-phase cage induction motors with axial-varying rotor eccentricity
Author :
Dorrell, David G.
Author_Institution :
Univ. of Technol. Sydney, Sydney, NSW, Australia
Abstract :
This paper puts forward a model for assessing UMP due to rotor eccentricity in cage induction motors that takes into account axial variation in the eccentricity. It is tested using 10-pole and 4-pole machines with some experimental results validate the model. The paper assesses the effect of bar number and variable-frequency operation on the UMP and highlights key points for generation of UMP in cage induction motors. Both dynamic and static eccentricities are studied.
Keywords :
induction motors; rotors; 3-phase cage induction motors; axial-varying rotor eccentricity; unbalanced magnetic pull; Unbalanced magnetic pull; induction motor; rotor eccentricity;
Conference_Titel :
Energy Conversion Congress and Exposition, 2009. ECCE 2009. IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4244-2893-9
Electronic_ISBN :
978-1-4244-2893-9
DOI :
10.1109/ECCE.2009.5316545
