The invention discloses a DFIG
active power control method based on distributed
model prediction control, and the method comprises the steps: obtaining the historical data of a DFIG, obtaining a
wind speed sequence in a prediction
time domain, constructing a control model of a variable
pitch controller based on
random model prediction, predicting to obtain a control input variable sequence in the prediction
time domain, and carrying out the prediction of a
wind speed sequence in the prediction
time domain; the current wind wheel rotating speed serves as the optimal wind wheel rotating speed, then an optimal active power reference value is obtained through calculation, and a rotor current reference value is obtained through a
stator outer ring control ring in a rotor side variable flow controller according to the optimal active power reference value; and a rotor inner ring control ring in the rotor side variable current controller obtains a rotor
voltage reference value according to the rotor current reference value, and generates a
control signal of the motor according to the rotor
voltage reference value so as to control the rotor current value, thereby realizing
active power control. According to the invention, a control architecture based on
distributed model predictive control is adopted, so that the
control effect is improved.