Comparative Study of Enhancing Stability of Wind Farm attached to the Grid by PID Controller based STATCOM and Capacitor Bank

Comparative study of enhancing stability of a wind farm that is grid connected has exposed moderating voltage variability and achieving reactive power recompense by means of STATCOM (static synchronous compensator). A PID controller and voltage control loop altogether used for controlling STATCOM. For maintaining control of STATCOM, PWM technique is introduced. By using different approach, relative study has been performed concerning stabilization of wind farm (i.e. by means of bank capacitor only/STATCOM/STATCOM together with PID controller during wind speed change). STATCOM together with PID controller deals improved performance along with enhanced stability.