Fault frequency tracking during transient operation of wind turbine Generators

Sinisa Durovic, C. J. Crabtree, S. Djurović, P. J. Tavner, A. C. Smith

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


    As remote and offshore wind turbines increase their contribution to renewable energy generation, effective and reliable condition monitoring techniques will be required to reduce failure downtime. This paper examines the possibilities for analysing electrical signals from the stator of wound rotor induction generators, commonly used in wind turbines. Previous work derived analytical expressions for the frequency content of line current and total instantaneous power for healthy and faulty wound rotor induction generators under steady state conditions. This paper builds upon those results to examine fault detection under transient, variable speed conditions, such as encountered in a wind turbine. Through comparison between a time-stepped analytical model and a physical test rig it is concluded that the tracking of speed dependent fault frequencies is possible and could be an effective and reliable way to monitor the health of a wind turbine wound rotor induction generator. ©2010 IEEE.
    Original languageEnglish
    Title of host publication19th International Conference on Electrical Machines, ICEM 2010|Int. Conf. Electr. Mach., ICEM
    Publication statusPublished - 2010
    Event19th International Conference on Electrical Machines - Rome, Italy
    Duration: 6 Sept 20108 Sept 2010


    Conference19th International Conference on Electrical Machines
    Abbreviated titleICEM 2010
    Internet address


    • Condition monitoring
    • Current spectrum
    • Induction generator
    • Power spectrum
    • Wind turbine


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