Terminal voltage and power factor control of induction generator using compensating capacitor for wind power generation system

This paper presents an approach of controlling induction generator terminal voltage and power factor by adjusting reactive power using compensating capacitor. At first, the theoretical equations expressing induction generator terminal voltage and power factor are derived. Then, the compensating capacitor in terms of wind velocity is determined quantitatively. By using the proposed control method, it is confirmed that the terminal voltage and operating power factor of wind power generation system can be maintained to a target value reference value even in the case when there is abrupt variation of wind speed. The validity of the proposed method is confirmed with MATLAB/SIMULINK simulations