A Method for Dynamic Simulation and Detection of Air-gap Eccentricity in Induction Motors by Measuring Flux Density

Author

Hwang, Don-Ha ; Chang, Jung-Hwan ; Kang, Dong-Sik ; Lee, Jin-Hee ; Choi, Kyeong-Ho

Author_Institution

Korea Electrotechnol. Res. Inst., Changwon

fYear

0

fDate

0-0 0

Firstpage

69

Lastpage

69

Abstract

This paper presents results of the finite-element (FE) analysis and experiment of air-gap flux variation in induction motor when rotor eccentricity conditions occur. An accurate modeling and analysis of rotor vibration in the motor are made using air-gap flux simulation, and search coils are used for measuring the actual magnetic flux. The simulated vibration system with 380 [V], 5 [HP], 1,742 [rpm] induction motor is built, and search coils are designed and inserted under the stator wedge of the motor. FE analysis results are compared with experiment test results

Keywords

air gaps; coils; finite element analysis; induction motors; magnetic field measurement; magnetic flux; rotors; stators; 380 V; 5 hp; air-gap eccentricity detection; air-gap flux simulation; air-gap flux variation; finite-element analysis; flux density measurement; induction motors; rotor eccentricity; rotor vibration; search coils; stator wedge; vibration system; Air gaps; Analytical models; Coils; Density measurement; Finite element methods; Induction motors; Iron; Magnetic analysis; Rotors; Vibration measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Field Computation, 2006 12th Biennial IEEE Conference on

Conference_Location

Miami, FL

Print_ISBN

1-4244-0320-0

Type

conf

DOI

10.1109/CEFC-06.2006.1632861

Filename

1632861