Wind Energy Conversion Systems Used in Grid Frequency Regulation Simulation
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    Abstract:

    As Wind Energy Conversion Systems, which don't join in grid frequency regulation, take a much more important part in power grid, frequency becomes a big problem. To solve this problem, we present a new method to improve Wind Energy Conversion Systems control strategy using in power grid frequency regulation. At first bases on inertial control it introduces frequency regulation to WECS. Then it improves inertial control with WECS's advantage, capable of changing its output active power arbitrarily within range in a short time, makes WECS contributes more in frequency transient's beginning. Finally it makes WECS cooperates with conventional generators, makes up disadvantage that WECS only can support frequency regulation in a short time, this will make power injection between frequency transient more reasonable, decrease the frequency fluctuation, optimize the WECS output active power curve and achieve rotor speed's recovery. At the end of the paper is simulations results and analysis.

    Reference
    1 Lalor G, Ritchie J, Rourke S, Flynn D, O'Malley M.J. Dynamic frequency control with increasing wind generation. USA: IEEE Power Eng. Soc. General Meeting, Jun. 6-10,2004,2:1715-1720.
    2 European Wind Energy Association (EWEA). Large Scale Integration of Wind Energy in the European Power Supply: Analysis, Issues and Recommendations. USA: EWEA, 2005.
    3 Almeida RG, Lopes JA. Participation of doubly fed induction wind generators in system frequency regulation. USA:IEEE Trans. Power Syst. 2007,22(3):944-950.
    4 Morren, S de Haan, Kling WL, Ferreira J. Wind turbines emulating inertia and supporting primary frequency control. IEEE Trans. Power Syst. 2006,21(1):433-437.
    5 Lalor G., Mullane A, O'Malley M. Frequency control and wind turbine technolog-ies. IEEE Trans. Power Syst. 2005,20(4):1905-1913.
    6 Bevrani H., Ghosh A., Ledwich G. Renewable energy sources and frequency regulation: survey and new perspectives. IET Renewable Power Generation, 2010,438-457.
    7 Almeida R, Castronuovo E, Lopes J. Optimum generation control in wind parks when carrying out system operator requests. IEEE Trans. Power Syst, 2006,21(2):718-725.
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赵国材,周前程.风能变换系统在电网频率调节中的应用仿真.计算机系统应用,2012,21(6):101-105

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History
  • Received:September 17,2011
  • Revised:October 19,2011
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