The present invention relates to a main steam safety valve modeling method that selectively applies a safety margin for an open set pressure based on the operating characteristics of the main steam safety valve, and implements modeling such that the main steam safety valve opens linearly. In the main steam safety valve modeling method according to the present invention, the main steam safety valve modeling system determines the evaluation model of the main steam safety valve (S10), and when the evaluation model is in terms of fuel health or dose evaluation, the main steam The safety valve modeling system may include inputting the lowest open design setting value of the main steam safety valve (S20) and inputting a lower operation margin value to the main steam safety valve modeling system (S30). In addition, the main steam safety valve modeling system calculates the lower operating margin value to the lowest open design set point to extract the lower opening time of the main steam safety valve opening pressure (S40), and to the main steam safety valve modeling system. The step of inputting the lower pressure value (S50) and the main steam safety valve modeling system may include the step of extracting the lower completion point of the main steam safety valve opening pressure by applying the lower pressure to the lower opening point (S60). have.
展开▼
