Fault Diagnosis Algorithm of AC Transmission Controller Based on PLC Technology

The diagnosis of AC transmission controller fault can increase the working life of AC transmission controller and improve the quality of transmission. The current method realizes the location mining by setting breakpoint running programs, so as to complete the fault diagnosis, but the stability is poor. Therefore, this paper proposes a fault diagnosis method of AC transmission controller based on PLC technology. This method establishes the location and mining model of data of AC transmission controller fault and complete fault diagnosis of transmission controller based on the time series of alarm hypothesis of AC transmission controller. Experimental result shows that this method can improve the detection accuracy.