SYSTEM FOR EVALUATING NUCLEAR POWER PLANT SHUTDOWN URGENCY USING TRIP SIGNATURE DATABASE AND METHOD THEREOF

摘要

Disclosed is a system and method for stopping the urgency evaluation of a nuclear power plant using a stop pattern database for quickly comparing operation pattern data collected for a few minutes immediately before a nuclear power plant is stopped and stop pattern data stored in a stop pattern database. do. In one embodiment, the system and method for stopping a nuclear power plant stoppage can be achieved by securing data through various accident scenarios that can be generated from a simulator used in a nuclear power plant, and performing signal preprocessing using a technique of reducing the dimension of data Then finally save. Reducing the dimensionality of the data is necessary to quickly compare hundreds of plant variables. The method of comparing the data continuously collected at the power plant with the data of the static pattern database can be performed using various kinds of similarity measures, and since each similarity measure has different advantages depending on the situation, To be calculated by the weighted average of. Finally, if pattern matching with the behavior of the current plant is found in the static pattern database through pattern matching using the similarity measure, it is checked whether the end of the detected pattern reaches the stoppage, Provide the operator with information about how much time remains.