Modelling of windmill induction generators in dynamic simulation programs

Vladislav Akhmatov, Hans Knudsen

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    For AC networks with large amounts of induction generators-in case of e.g. windmills-the paper demonstrates a significant discrepancy in the simulated voltage recovery after faults in weak networks, when comparing result obtained with dynamic stability programs and transient programs, respectively with and without a model of the mechanical shaft. The reason for the discrepancies are explained, and it is shown that the phenomenon is due partly to the presence of DC offset currents in the induction machine stator, and partly to the mechanical shaft system of the wind turbine and the generator rotor. It is shown that it is possible to include a transient model in dynamic stability programs and thus obtain correct results also in dynamic stability programs. A mechanical model of the shaft system has also been included in the generator model
    Original languageEnglish
    Title of host publicationProceedings of International IEEE Power Tech Conference
    Number of pages108
    Publication date1999
    ISBN (Print)0-7803-5836-8
    Publication statusPublished - 1999
    EventInternational Conference on Electric Power Engineering -
    Duration: 1 Jan 1999 → …


    ConferenceInternational Conference on Electric Power Engineering
    Period01/01/1999 → …

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