Shaplet disconnecting switch fault diagnosis based on automatic optimization mechanism

The invention discloses Shaplet disconnecting switch fault diagnosis based on an automatic optimization mechanism, and designs an early warning method which aims at improving the fault diagnosis precision and speed, is based on driving motor current side frequency and fundamental wave characteristic time sequence analysis and is suitable for disconnecting switch fault diagnosis at the present stage. According to the method, motor current side frequency time sequence characteristics and fundamental wave time sequence characteristics are considered, a relation model of operation torque and motor current is obtained by analyzing the relation between an isolation switch operation rod and the motor current, and meanwhile, a sub-time sequence of a fault characteristic time sequence is obtained through analysis of the side frequency time sequence characteristics and the fundamental wave time sequence characteristics under the condition of an impassable fault; under a fault diagnosis model of a self-optimization mech