Transient stability emergency control method and device considering direct current successive locking time difference, and storage medium

The invention discloses a transient stability emergency control method considering a direct current successive locking time difference. The method comprises the following steps: acquiring the successive locking time difference between a front locking moment and a rear locking moment in a direct current successive locking fault; whether the successive locking time difference is within a predetermined independent event time difference range or not is judged, if yes, a front locking event and a rear locking event in the direct-current successive locking fault serve as independent events, and a predetermined single direct-current locking control strategy is adopted for fault response control; otherwise, adding the predetermined load control quantity while performing fault response control by adopting a single direct-current locking control strategy corresponding to the front and rear locking events respectively. According to the method, the influence rule of the time difference of successive occurrence of multipl