Off-Line Detection of Static Eccentricity in Salient-Pole Synchronous Machines

Konstantinos N. Gyftakis, Carlos A. Platero, S. Bernal

    Research output: Chapter in Book/Report/Conference proceedingConference proceedingpeer-review

    5 Citations (Scopus)
    186 Downloads (Pure)


    Since synchronous generators are the main electric power producing devices, it is crucial to guarantee their safe and reliable operation. However, faults may appear and inflict great losses. So, condition monitoring of such machines is
    critical to avoid unscheduled stops and unplanned maintenance. This paper works towards that direction. The authors are proposing a new off-line method to reliably detect the static eccentricity fault in synchronous salient pole electrical machines. The method is based on the monitoring of all three phase currents of the machine during locked rotor at three different rotor positions. A pseudo zero-sequence current is then calculated, the frequency spectrum of which can reveal reliable indicators to detect this fault. The proposed method has been tested experimentally with success, while the results indicate that it is
    possible to estimate the fault level severity.
    Original languageEnglish
    Title of host publication2018 XIII International Conference on Electrical Machines (ICEM)
    Number of pages6
    ISBN (Electronic)978-1-5386-2477-7
    ISBN (Print)978-1-5386-2478-4
    Publication statusPublished - 25 Oct 2018
    EventXIII International Conference on Electrical Machines - Alexandroupoli, Greece
    Duration: 3 Sept 20186 Sept 2018


    ConferenceXIII International Conference on Electrical Machines
    Abbreviated titleICEM 2018
    Internet address

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