Demagnetization Detection and Severity Assessment in PMSMs Using Search Coils Exploiting Machine's Symmetry

Magnet demagnetization in permanent magnet synchronous machines (PMSMs) can produce inadmissible performance degradation. Search coils (SCs) have been proven to be a viable option for its detection. Existing methods allow detection of demagnetization of one permanent magnet with three or less SCs. H...

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Veröffentlicht in:	IEEE transactions on industry applications 2023-07, Vol.59 (4), p.1-12
Hauptverfasser:	Orviz, Marcos, Laborda, Diego F., Reigosa, David, Lee, Hyeon-Jun, Rafaq, Muhammad Saad, Lee, Sang Bin, Briz, Fernando
Format:	Artikel
Sprache:	eng
Schlagworte:	Coils Demagnetization differential voltage Fault detection Harmonic analysis Induced voltage Performance degradation Performance enhancement permanent magnet Permanent magnets Rotors search coil Sensors Stators Synchronous machines Voltage zero-sequence voltage
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