Title :
Research on transient behaviors and detection methods of stator winding inter-turn short circuit fault in induction motors based on multi-loop mathematical model
Author :
Heming, Li ; Liling, Sun ; Boqiang, Xu
Author_Institution :
Sch. of Electr. Eng., North China Electr. Power Univ., Baoding
Abstract :
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
Keywords :
fault diagnosis; induction motors; mathematical analysis; short-circuit currents; stators; apparent impedance; detection methods; multiloop mathematical model; squirrel cage induction motor; stator negative sequence; stator winding interturn short circuit fault; transient behaviors; transient simulation; Analytical models; Circuit faults; Circuit simulation; Computer vision; Electrical fault detection; Fault detection; Impedance; Induction motors; Mathematical model; Stator windings; detection; induction motor; inter-turn short circuit; multi-loop model; simulation; stator winding;
Conference_Titel :
Electrical Machines and Systems, 2005. ICEMS 2005. Proceedings of the Eighth International Conference on
Conference_Location :
Nanjing
Print_ISBN :
7-5062-7407-8
DOI :
10.1109/ICEMS.2005.202901
