Fault diagnosis method by real time alarm processing of power plant

摘要

The present invention relates to a failure diagnosis method by real-time alarm processing of a power plant that the operator quickly and appropriately handles faults occurring during operation of a power plant. In order to solve the problem that the rapid action could not be achieved in the present invention, the present invention stores the alarm generated at the power plant, the alarm occurrence time, the sensor data in the knowledge base for alarm processing, the alarm generated when the alarm-related data stored multiple alarms Select one alarm as priority, treat the selected alarm as the cause alarm according to the existence of the preceding alarm occurred before the selected alarm, and display the result of the alarm processing on the connection screen of the operator. Knowledge bay for troubleshooting by selecting one by one according to the priority of alarms Read the sensor data related to the cause alarm, the failure type, and the qualitative model related to the failure, and qualitatively analyze the trend of the sensor data from all the cause alarm data, and match the qualitative model when it matches the qualitative model. In addition, after calculating the degree of confidence in the type and action of the fault, the result of the fault diagnosis can be displayed on the operator connection screen.