A method and device for analyzing nuclear power plant operating events

Abstract

A method and device for analyzing nuclear power plant operating events, relating to the field of nuclear power plant safety technology, wherein the method includes step 1, investigating the operating event, forming an operating event report and uploading it to the experience feedback system of the National Nuclear Safety Administration; step 2 1. The analysis module conducts qualitative analysis on the operation event and identifies the root cause of the operation event; step three, imports the root cause quantitative data obtained in step two into the quantitative calculation module built based on the Bayesian network model, quantitative calculation and Update the occurrence frequency of such operational events in real time; step 4, determine the experience of preventing and reducing the occurrence of such operational events based on the calculation results obtained in step 3, and feed back the obtained experience to the operating organizations of nuclear power plants. The invention comprehensively uses a qualitative analysis program and a quantitative calculation tool to analyze the operation event of the nuclear power plant, improves the analysis efficiency and accuracy of the operation event of the nuclear power plant, and is beneficial to reduce the occurrence probability of the operation event.

Description

technical field [0001] The invention relates to the technical field of nuclear power plant operation safety, in particular to a method and device for analyzing nuclear power plant operation events. Background technique [0002] A nuclear power plant operation event refers to a safety-related event caused by human error or component failure. It can be an event that does not have a significant impact on the safe operation of a nuclear power plant, or it can cause a transient occurrence of a nuclear power plant or even a reactor shutdown. event. Operational events of nuclear power plants can affect the normal functions of nuclear power plants to varying degrees and lead to unplanned consequences, for example, unplanned emergency shutdown (Unplanned Reactor Trip, URT). Therefore, within the scope of nuclear power plant safety assessment, how to effectively analyze operational events to identify the root cause of the event, clarify the consequences of the event, and formulate co...

AI Technical Summary

Problems solved by technology

Although the statistical analysis of root causes can intuitively reflect the problems existing in the operation of nuclear power plants and provide corresponding suggestions for reasonable prevention and reduction of operational incidents, these quantitative analysis results still lack depth and cannot be updated online

In addition, as far as the existing research is concerned, the above-mentioned two main research work (root cause identification and root cause quantification) on nuclear power plant operating events are separated, lacking a unified analysis framework to integrate These two parts work to improve the efficiency and accuracy of analysis of nuclear power plant operating events

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