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Theses

Modélisation et diagnostic de la machine asynchrone en présence de défaillances

Abstract : In this study, we move on to the broken rotor bar diagnosis of squirrel-cage induction machines. The first part is devoted to the development of a model which is based on the magnetically coupled electric circuits. We present three methods allowing detection of a rotor defect of an induction machine. The first method is based on the evaluation of several indexes calculated starting from the amplitude of the components present in the spectra of the instantaneous power and the line current. The second method of detection suggested uses the stator current spectrum phase calculated starting from a Fourier Transform. To improve the detection, we use the Hilbert transform phase calculated starting from the stator current spectrum module. These approaches have the characteristic to be based on any threshold of reference to establish the presence of a broken rotor bar.
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Theses
File URL :
http://docnum.univ-lorraine.fr/prive/SCD_T_2004_0163_DIDIER.pdf
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https://hal.univ-lorraine.fr/tel-01746764
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Submitted on : Thursday, March 29, 2018 - 10:44:25 AM
Last modification on : Monday, August 31, 2020 - 4:01:14 PM

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  • HAL Id : tel-01746764, version 1

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Gaëtan Didier. Modélisation et diagnostic de la machine asynchrone en présence de défaillances. Autre. Université Henri Poincaré - Nancy 1, 2004. Français. ⟨NNT : 2004NAN10163⟩. ⟨tel-01746764⟩

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