Inter-Turn Short-Circuit Faults Diagnosis in Synchronous Reluctance Machines, Using the Luenberger State Observer and Current's Second-Order Harmonic

Interturn short-circuit faults are one of the most (if not the most) harmful electrical machine failures, that if not detected and mitigated at a very incipient stage of development may involve serious consequences, both in terms of repair costs and safety. This article proposes a novel interturn fa...

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Bibliographic Details
Published in:IEEE transactions on industrial electronics (1982) 2022-08, Vol.69 (8), p.8420-8429
Main Authors: Mahmoudi, Abdelkader, Jlassi, Imed, Cardoso, Antonio J. Marques, Yahia, Khaled, Sahraoui, Mohamed
Format: Article
Language:English
Subjects:
Circuit faults
Circuits
Current residual
Fault detection
Fault diagnosis
fault indicator
Faults
Harmonic analysis
Hidden Markov models
inter turn short circuit fault
Luenberger observer
Mathematical model
Observers
Reluctance machinery
second harmonic
Short circuits
State observers
Stator windings
synchronous reluctance machine (SynRM)
Thermal sensors
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Summary:Interturn short-circuit faults are one of the most (if not the most) harmful electrical machine failures, that if not detected and mitigated at a very incipient stage of development may involve serious consequences, both in terms of repair costs and safety. This article proposes a novel interturn fault diagnostic technique for synchronous reluctance machines based on the Luenberger state observer and current's second-order harmonic. The superiority of the proposed approach over the conventional model-based techniques is the ability to evaluate the severity of the fault as well as the efficiency in detecting faults in early stages and under various operating conditions. The effectiveness of the proposed method is demonstrated and validated through several experimental tests.
ISSN:0278-0046
1557-9948
DOI:10.1109/TIE.2021.3109514