有学者研究了基于负荷预测，利用控制风机的输出功率使得系统频率偏差变小。

Some scholars have studied the use of controlling the output power of the fan to make the system frequency deviation smaller based on load forecasting. The load power is predicted by a disturbance observer, and the output power of the wind farm can be determined by the predicted load. For each wind turbine, the output power can be adjusted through the control of the pitch angle, and the load frequency can be controlled. Some scholars use the speed and pitch angle of the rotor as control variables. Under normal working conditions, the output power of the wind turbine is less than the maximum power, which provides an active power reserve. The principle is shown in Figure 1-2. This situation is a frequency modulation of the wind turbine participating in the system. This method is mostly used when the wind power generator is rated power output.

Some scholars have studied the frequency deviation of the system by using the output power of the control fan based on load prediction. Load power is predicted by the Perturbation Observer, and wind farm output power can be determined by the predicted load. For each wind turbine, the output power can be adjusted by controlling the pitch angle, so that the load frequency control can be achieved. Some scholars take the speed of the rotor and the pitch angle as control variables, and under normal working conditions, the output power of the wind turbine is less than the maximum power, which provides a functional reserve. The principle is shown in Figure 1-2, which is one FM in which the wind turbine participates in the system. Most of these methods are used in cases when wind turbines are rated for power output.

Some scholars have studied how to reduce the frequency deviation of the system by controlling the output power of the fan based on load forecasting. The load power is predicted by disturbance observer, and the output power of wind farm can be determined by the predicted load. For each wind turbine, the output power can be adjusted by controlling the pitch angle, and then the load frequency can be controlled. Some scholars take the rotor speed and pitch angle as control variables. Under normal working conditions, the output power of the wind turbine is less than the maximum power, which supplies the active power reserve. The principle is shown in Figure 1-2. This condition is that the wind turbine participates in the primary frequency regulation of the system. This method is mostly used when the wind turbine is rated power output.