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Analysis of a three phase induction motor under eccentricity condition

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6 Author(s)
Don-Ha Hwang ; Korea Electrotechnol. Res. Inst., Changwon, South Korea ; Ki-Chang Lee ; Joo-Hoon Lee ; Dong-Sik Kang
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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.

Published in:

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

Date of Conference:

6-10 Nov. 2005