Control of variable speed wind turbine with doubly-fed induction generator

A.D. Hansen*, Poul Ejnar Sørensen, F. Iov, F. Blaabjerg

*Corresponding author for this work

    Research output: Contribution to journalJournal articleResearchpeer-review


    The paper presents an overall control method for variable speed pitch controlled wind turbines with doubly-fed induction generators (DFIG). Emphasis is on control strategies and algorithms applied at each hierarchical control level of the wind turbine. The objectives of the control system are: 1) to control the power drawn from the wind turbine in order to track the wind turbine maximum power operation point, 2) to limit the power in case of large wind speeds, and 3) to control the reactive power interchanged between the wind turbine generator and the grid. The present control method is designed for normal continuous operations. The strongest feature of the implemented control method is that it allows the turbine to operate with the optimum power efficiency over a wider range of wind speeds. The model of the variable speed, variable pitch wind turbine with doubly-fed induction generator is implemented in the dynamic power system simulation tool DIgSILENT PowerFactory which allows investigation of the dynamic performance of grid-connected
    wind turbines within realistic electrical grid models. Simulation results are presented and analysed in different normal operating conditions.
    Original languageEnglish
    JournalWind Engineering
    Issue number4
    Pages (from-to)411-432
    Number of pages22
    Publication statusPublished - 2004


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