Doubly-fed fan system outgoing line protection method and device, storage medium and computer equipment

The invention discloses a doubly-fed fan system outgoing line protection method and device, a storage medium and computer equipment. The method comprises the following steps: determining positive sequence equivalent impedance and negative sequence equivalent impedance of the doubly-fed fan system according to voltage data and current data at a distance relay corresponding to the doubly-fed fan system in response to a fault state of the doubly-fed fan system; determining system equivalent impedance of the doubly-fed fan system according to the positive sequence equivalent impedance and the negative sequence equivalent impedance; determining compensation impedance according to the positive sequence equivalent impedance and the system equivalent impedance; and performing compensation processing on the setting impedance of the distance relay according to the compensation impedance so as to update the action characteristic equation of the distance relay. The setting impedance is corrected through the compensation