Title :
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
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;
Conference_Titel :
Electromagnetic Field Computation, 2006 12th Biennial IEEE Conference on
Conference_Location :
Miami, FL
Print_ISBN :
1-4244-0320-0
DOI :
10.1109/CEFC-06.2006.1632861
