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Title: Fault Detection of Broken Rotor Bars Using Stator Current Spectrum for the Direct Torque Control Induction Motor
Authors: Ridha Kechida
Arezki Menacer
Abdelhamid Benakcha
Keywords: Rotor faults, diagnosis, induction motor, DTC, stator current spectrum.
Issue Date: 12-May-2014
Abstract: The numerous qualities of squirrel cage induction machines enhance their use in industry. However, various faults can occur, such as stator short-circuits and rotor failures. In this paper, we use a technique based on the spectral analysis of stator current in order to detect the fault in the machine: broken rotor bars. Thus, the number effect of the breaks has been highlighted. The effect is highlighted by considering the machine controlled by the Direct Torque Control (DTC). The key to fault detection is the development of a simplified dynamic model of a squirrel cage induction motor taking account the broken bars fault and the stator current spectrum analysis (FFT).
Appears in Collections:Publications Internationales

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