ISSN 1000-1026
CN 32-1180/TP
  • ISSN 1000-1026
  • CN 32-1180/TP

Citation: ZHANG Xueguang,QIU Wangming,FANG Ran,ZHU Lin,XU Dianguo.Impedance Modeling and Sub-synchronous Resonance Mitigation Strategy of Doubly-fed Induction Generator Based Wind Turbine in Static Reference Frame[J].Automation of Electric Power Systems,2019,43(6):41-48. DOI: 10.7500/AEPS20180824002 copy

Impedance Modeling and Sub-synchronous Resonance Mitigation Strategy of Doubly-fed Induction Generator Based Wind Turbine in Static Reference Frame

  • Received Date: August 24, 2018
    Accepted Date: November 13, 2018
    Available Online: January 23, 2019

  • Abstract:

        To explain the mechanism of sub-synchronous resonance(SSR)in doubly-fed induction generator(DFIG)based wind turbine system under series compensation, a static reference frame impedance model of DFIG based wind turbine is established. Firstly, the dq impedance model of DFIG based wind turbine is transformed into complex vector form and its frequency-domain impedance model is derived by frequency transformation. Based on the physical interpretation represented by the impedance model, the influence of controller and network parameters on equivalent impedance and SSR frequency of grid-connected system is analyzed using equivalent RLC series circuit. Damping control and virtual inductance control are proposed to mitigate SSR, which can increase the damping of SSR region and reduce the SSR frequency of the system, respectively. Finally, the accuracy of the model and theoretical analysis is verified by simulation.


  • Keywords:

    doubly-fed induction generator(DFIG)based wind turbine; sub-synchronous resonance(SSR); impedance modeling; additional damping control; virtual inductance control


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