Analysis of a three phase induction motor under eccentricity condition

Author

Hwang, Don-Ha ; Lee, Ki-Chang ; Lee, Joo-Hoon ; Kang, Dong-Sik ; Lee, Jin-Hee ; Choi, Kyeong-Ho

Author_Institution

Korea Electrotechnol. Res. Inst., Changwon, South Korea

fYear

2005

fDate

6-10 Nov. 2005

Abstract

This paper presents results of the finite-element (FE) analysis of air-gap flux variation in an induction motor when the rotor vibrates due to its eccentricity. An accurate modeling and analysis of rotor vibration in the machine are made using air-gap flux simulation, and search coils are used for measuring the actual air-gap flux. The simulation was done for the induction motor with 380 [V], 5 [HP], 4P, 1,742 [rpm] ratings using the commercial FE analysis tool. The simulation and experiment results can be useful for on-line vibration monitoring of an induction motor.

Keywords

coils; finite element analysis; induction motors; magnetic flux; magnetic variables measurement; monitoring; rotors; vibrations; air-gap flux variation; eccentricity condition; finite-element analysis; flux measurment; on-line vibration monitoring; rotor; search coils; three phase induction motor; Air gaps; Analytical models; Breakdown voltage; Finite element methods; Induction motors; Iron; Magnetic analysis; Rotors; Stators; Vibration measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics Society, 2005. IECON 2005. 31st Annual Conference of IEEE

Print_ISBN

0-7803-9252-3

Type

conf

DOI

10.1109/IECON.2005.1569318

Filename

1569318