Analysis of Bifurcations in a Wind Turbine System Based on DFIG

Saber Khosravi (Department of Electrical Engineering, Naein Branch, Islamic Azad University, Naein, Iran)
Mehran Zamanifar (Department of Electrical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran)
Pouya Derakhshan-Barjoei (Department of Electrical Engineering, Naein Branch, Islamic Azad University, Naein, Iran)

Emerging Science Journal
Vol 2, No 1 (2018): February

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.