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Theses

Contribution à l'étude et au diagnostic de la machine asynchrone

Abstract : Used in the majority of the electric drives, the asynchronous machine tends to supplant the machine with D.C. current as well as the synchronous machine because of its many qualities, and mainly of its low cost and its robustness. Thus, a general reflexion is committed in modeling and diagnostic of induction machine defects. More particularly, we propose to study the rotor defects (broken bars in the rotor). In the first time, we develop two models of the asynchronous machine for the simulation of broken bars. We present in the continuation three methods to detect this fault. The principle of detection is based on the spectral analysis of the stator current in order to follow the evolution of the frequencies which are related to the fault. Lastly, a study of the defect in the presence of a classical vector control is presented, opening a new way towards a diagnostic in the case of speed variation. An experimental part is carried out to validate the exactitude of the theoretical results and to show the effectiveness of the developed methods.
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Theses
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http://docnum.univ-lorraine.fr/prive/SCD_T_2002_0020_ABED.pdf
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https://hal.univ-lorraine.fr/tel-01746654
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Submitted on : Thursday, March 29, 2018 - 10:42:01 AM
Last modification on : Monday, October 5, 2020 - 3:37:29 PM

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  • HAL Id : tel-01746654, version 1

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Aïcha Abed. Contribution à l'étude et au diagnostic de la machine asynchrone. Autre. Université Henri Poincaré - Nancy 1, 2002. Français. ⟨NNT : 2002NAN10020⟩. ⟨tel-01746654⟩

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