A study on dynamic simulation and detection of air-gap eccentricity in induction machines

Author

Hwang, Don-Ha ; Lee, Ki-Chang ; Kim, Yong-Joo ; Choi, Kyeong-Ho ; Min-Huei Kim ; Lee, Jin-Hee

Author_Institution

Ind. Applications Res. Lab., Korea Electrotechnol. Res. Inst., Changwon, South Korea

Volume

2

fYear

2005

fDate

20-23 June 2005

Firstpage

867

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 results can be useful for on-line vibration monitoring of an induction motor.

Keywords

air gaps; finite element analysis; induction motors; rotors; 380 V; 5 hp; air-gap eccentricity detection; air-gap flux simulation; air-gap flux variation; commercial FE analysis tool; finite-element analysis; induction machines; induction motor; online vibration monitoring; rotor vibration; search coils; Air gaps; Analytical models; Coils; Finite element methods; Induction machines; Induction motors; Iron; Monitoring; Rotors; Vibration measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, 2005. ISIE 2005. Proceedings of the IEEE International Symposium on

Conference_Location

Dubrovnik, Croatia

Print_ISBN

0-7803-8738-4

Type

conf

DOI

10.1109/ISIE.2005.1529029

Filename

1529029