METHOD AND APPARATUS FOR CALCULATION OF FAILURE EVENT PROBABILITIES FROM PARTIALLY CORRELATED COMBINATION PROBABILITIES FOR SEISMIC PROBABILISTIC SAFETY ASSESSMENT OF NUCLEAR POWER PLANTS

摘要

The method for calculating the probability of device failure events for the probabilistic safety evaluation of an earthquake event of a nuclear power plant according to an embodiment of the present invention is a predetermined method in the method of calculating the failure combination probability for the probabilistic stability evaluation of an earthquake event of a nuclear power plant. The step of calculating a plurality of failure combination probabilities corresponding to the logical combination of N (N is a natural number) in the nuclear power plant, and failure tree consisting of device failure events corresponding to each of the plurality of failure combination probabilities. The plurality of device failure events based on the step of calculating, calculating a minimum interruption set corresponding to the fault tree, and a plurality of minimum interruption sets corresponding to each of the plurality of failure combination probability and the plurality of failure combination probability And calculating each probability.