Robust thermal model for the estimation of rotor cage and stator winding temperatures of induction machines

2012 ◽  
Author(s):  
Christian Kral ◽  
Anton Haumer ◽  
Sang Bin Lee
Keyword(s):  
Thermal Model ◽  
Induction Machines ◽  
Stator Winding ◽  
Rotor Cage

scholarly journals Induction Motor Fault Diagnosis Based on Zero-Sequence Current Analysis

Energies ◽  
2020 ◽  
Vol 13 (24) ◽  
pp. 6528
Author(s):  
Arkadiusz Duda ◽  
Piotr Drozdowski
Keyword(s):  
Fault Diagnosis ◽  
Induction Motor ◽  
Induction Machines ◽  
Magnetic Core ◽  
Stator Winding ◽  
Current Component ◽  
Current Analysis ◽  
Zero Sequence ◽  
Rotor Cage ◽  
Motor Model

This paper presents some considerations regarding the application of the stator zero-sequence current component (ZSC) in the fault detection of cage induction machines, including the effects of magnetic core saturation. Faults such as rotor cage asymmetry and static, dynamic, and mixed eccentricity were considered. The research started by developing a harmonic motor model, which allowed us to obtain a voltage equation for the zero-sequence current component. The equation allowed us to extract formulas of typical frequencies for particular fault types. Next, in order to verify the effectiveness of ZSC in induction motor fault diagnosis, finite element calculations and laboratory tests were carried out for the previously mentioned faults for delta and wye connections with neutral wire stator winding configurations.

Investigation Method of Transient Modes in Induction Machines with Rotor Cage Asymmetry

2016 ◽  
pp. 433-451
Author(s):  
Iliya Boguslawsky ◽  
Nikolay Korovkin ◽  
Masashi Hayakawa
Keyword(s):  
Induction Machines ◽  
Investigation Method ◽  
Rotor Cage

scholarly journals Reduced-Order Model of Rotor Cage in Multiphase Induction Machines: Application on the Prediction of Torque Pulsations

2020 ◽  
Vol 25 (1) ◽  
pp. 11 ◽  
Author(s):  
Abdelhak Mekahlia ◽  
Eric Semail ◽  
Franck Scuiller ◽  
Hussein Zahr
Keyword(s):  
Induction Machine ◽  
Induction Machines ◽  
Reduced Order Model ◽  
Order Model ◽  
Two Phase ◽  
Reduced Order ◽  
Three Phase ◽  
Torque Pulsations ◽  
Sinusoidal Current ◽  
Rotor Cage

For three-phase induction machines supplied by sinusoidal current, it is usual to model the n-bar squirrel-cage by an equivalent two-phase circuit. For a multiphase induction machine which can be supplied with different harmonics of current, the reduced-order model of the rotor must be more carefully chosen in order to predict the pulsations of torque. The proposed analysis allows to avoid a wrong design with non-sinusoidal magnetomotive forces. An analytical approach is proposed and confirmed by Finite-Element modelling at first for a three-phase induction machine and secondly for a five-phase induction machine.

Sign in / Sign up

Export Citation Format

Share Document