Doubly fed wind power generator control structure under asymmetric sudden rise of power grid voltage

The present invention discloses an asymmetric swell the grid voltage DFIG control structure, a rotor excitation control DFIG, the negative sequence current in the inner rotor introducing active damping R1, and the rotor d , the product of the negative sequence current multiplied by the q-axis feedback is applied to the output rotor formed negative sequence current D, the q-axis adjuster, the rotor constituting the inner side of the negative sequence current active damping control structure, and the negative sequence current in the stator outer introducing active damping R2, the product of the feedback stator d, q-axis negative sequence current is applied to the output formed by multiplying the stator current negative sequence d, the q-axis adjuster, based on the synchronous rotor constituting the two active damping current transformer improved control strategy rotating coordinate system, the present invention is effective to inhibit the oscillation of the rotor negative sequence current and the electromagnetic torque; negative sequence current in the stator and the outer active damping is introduced to accelerate the stator asymmetry swell the grid voltage negative sequence current transient suppression capability of the system to improve the dynamic response.