Grayscale image based nuclear reactor main pump failure auxiliary diagnosis system and method

Abstract

The invention relates to a grayscale image based nuclear reactor main pump failure auxiliary diagnosis system and method. The method comprises the following main steps: a data front end processing unit collects real-time related data of reactor operation, generates a dynamic matrix related to reactor real-time operation through analysis and integration of the processing unit, then conducts further conversion to enable the dynamic matrix to be normalized, and then generates a grayscale image; a programmable logic gate array conducts relevant operation and contrastive analysis on the grayscale image transmitted from the data front end processing unit and the standard grayscale image, stored in database, of a reactor main pump under normal working condition and accident working condition, and finds out the failure image with the maximal relevance and the highest matching degree; the system automatically judges the type and process, and feeds the diagnosis result back to an operator station; at the moment, an operator strictly monitors the related important parameter change of the grayscale image under the failure working condition according the pre-judgment result provided by the system, and finally determines the type and process of the main pump failure.

Description

technical field [0001] The invention relates to the fault diagnosis of the main pump of the reactor, and more specifically, to a system and method for assisting the fault diagnosis of the main pump of the nuclear reactor based on grayscale images. Background technique [0002] The nuclear reactor is a very complex system, which has special requirements for safety and reliability, so the operator must be well aware of the various operating states of each system of the reactor, and he must be very familiar with various possible failures and their causes, so that Only in this way can timely and accurate judgments be made on possible reactor operation events or accidents. With the application and development of fault diagnosis technology, the state detection and fault diagnosis system with detection, identification, prediction and intervention as the core has been widely and deeply used in the nuclear field, and corresponding computer-aided systems have been gradually establishe...

AI Technical Summary

Problems solved by technology

The nuclear reactor is a huge and complex system, which contains a large amount of nonlinear and highly coupled data during real-time operation. It is often difficult to grasp the comprehensive operating status of the reactor by systematically analyzing all the data with traditional methods. Therefore, a method that can intuitively understand complex issues The reactor fault diagnosis system that is simplified, visualized, and simplified is on the agenda. The present invention proposes an auxiliary diagnostic system based on grayscale images for the main pump fault of nuclear reactors, which can solve this problem well.

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