One of the most important issues in a power system is load-frequency control. The penetration of distributed generation sources such as wind turbines into the power system complicates the issue of load-frequency control. When there is a disturbance in the power system due to load or distributed generation sources (wind turbine), it causes frequency deviation in the power system, and also these frequency deviations due to disturbance have a slow damping speed. The presence of large conventional generators in the power system provides sufficient inertia for the power system and reduces the frequency deviation, but the damping speed of the frequency deviations is slow. In this paper, for wind turbines in the power system, virtual damping (proposed method) is used, which causes the frequency deviation due to disturbance in the power system to have faster damping. The results of the proposed method are compared with the conventional method used in this field and the superiority of the proposed method is shown. Simulation is performed in MATLAB software.
