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    Oscillation analysis of a DFIG-based wind farm interfaced with LCC-HVDC

    Date
    2014-12
    Author
    Yang, Lin
    Xiao, XiangNing
    Pang, Chengzong
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    Citation
    Yang, Lin; Xiao, XiangNing; Pang, ChengZong. 2014. Oscillation analysis of a DFIG-based wind farm interfaced with LCC-HVDC. Science China Technological Sciences, vol. 57:no. 12:pp 2453-2465
    Abstract
    With the increasing capacity of wind farm, HVDC technology has become a promising transmission scheme for long distance transportation of large-scale wind power. However oscillation caused by this system will have a great influence on the security and stability of power system operation. In this paper, the oscillation of a doubly-fed induction generator (DFIG)-based wind farm interfaced with line commutated converter (LCC) based HVDC is discussed. Low-frequency oscillation and subsynchronous oscillation (SSO) are studied since these two oscillations are the particularly concerned oscillations in the stability study of power system in recent years. The model of a DFIG-based wind farm interconnected with LCC-HVDC is developed. The impact of drive train model's structure and parameters on the oscillation characteristics is analyzed. Eigenvalue and participation factor analysis are used to identify the three main modes, which include controller mode, electromechanical mode, and shaft mode. The effects of DFIG controller's parameters, wind speed and operating conditions of HVDC on those modes are studied. Electromagnetic transient simulations are performed to verify the results of the eigenvalue analysis.
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    URI
    http://dx.doi.org/10.1007/s11431-014-5681-3
    http://hdl.handle.net/10057/11056
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