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Research on transient behaviors and detection methods of stator winding inter-turn short circuit fault in induction motors based on multi-loop mathematical model

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3 Author(s)
Li Heming ; Sch. of Electr. Eng., North China Electr. Power Univ., Baoding, China ; Sun Liling ; Xu Boqiang

This paper aims to the detection of stator winding inter-turn short circuit fault (SWITSCF) in induction motors. Firstly, the multi-loop mathematical models of squirrel cage induction motor, YN, Y or D connected, under the conditions that the motor is healthy/faulty with stator winding inter-turn shorts, are developed. Secondly, the transient simulation of SWITSCF as well as the related experiment is completed. By thoroughly analyzing the simulation and experiment results, a series of interesting highlights to guarantee the sensitivity and reliability of the detection scheme for SWITSCF have been revealed explicitly. Furthermore, a novel detection method for SWITSCF, which takes the filtered value of stator negative sequence apparent impedance as the fault feature, is presented. Experiment results demonstrate that it is effective

Published in:

2005 International Conference on Electrical Machines and Systems  (Volume:3 )

Date of Conference:

29-29 Sept. 2005