Analysis of Bifurcations in a Wind Turbine System Based on DFIG

Wind Turbine System Bifurcation Theory Saddle-Node Bifurcation Hopf Bifurcation.

Authors

  • Saber Khosravi
    saberkhosravi51@gmail.com
    Department of Electrical Engineering, Naein Branch, Islamic Azad University, Naein, Iran, Iran, Islamic Republic of
  • Mehran Zamanifar Department of Electrical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran, Iran, Islamic Republic of
  • Pouya Derakhshan-Barjoei Department of Electrical Engineering, Naein Branch, Islamic Azad University, Naein, Iran, Iran, Islamic Republic of

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This main aim of this study is investigation of the dynamic stability in a grid-connected wing turbine system based on Double Feed Induction Generator (DFIG) using the bifurcation theory. Regarding the overview of stability by Cardenas et. al. [1]. In our research, the proposed system model is simulated based on bifurcation theory in MATLAB software. In each step, one of the controlling or non-controlling parameters is selected. Eigenvalues of system are traced permanently during simulation. According to the change of the eigenvalues of system, due to the change of bifurcation parameter, stability of the equilibrium point and special bifurcations including saddle-node and Hopf bifurcations in the system are determined.