公开(公告)号：EP4113539A1

公开(公告)日：2023-01-04

申请号：EP20922024.3

申请日：2020-12-18

Applicant: Korea Hydro & Nuclear Power Co., Ltd ,  M&D Co., Ltd.

Inventor： KIM, Hyuck Jong ,  JUNG, Kyung Suk ,  CHOI, Hyun Woo ,  SIN, Jae Won ,  KIM, Dae Woong ,  KIM, Yun Goo ,  SEONG, No Kyu ,  MIN, Ji Ho

IPC: G21C17/00 ,  G21D3/04

Abstract: In order to provide a method and a system for monitoring a state of a nuclear power plant capable of reducing a state prediction error of a sensor during startup, full power, shut down operation of a nuclear power plant, and of providing an early warning, without an error alarm by remotely and automatically diagnosing the state of a sensor, device, system and power plant, the present invention comprises: a first layer that compares a sensor measurement value and a device measurement value with predicted values so as to detect anomalies of the sensor and the device; a second layer that classifies a type of the sensor and diagnoses the presence or absence of an anomaly of the sensor on the basis of an anomaly value of the sensor provided from the first layer; and a third layer that diagnoses a state of the nuclear power plant on the basis of detection and diagnosis results for the sensor provided from the first and second layers and an anomaly result for the device provided from the first layer.

公开(公告)号：EP4254430A1

公开(公告)日：2023-10-04

申请号：EP21898460.7

申请日：2021-11-15

Applicant: Korea Hydro & Nuclear Power Co., Ltd

Inventor： KIM, Yun Goo ,  SEONG, No Kyu ,  PARK, Dae Seung

IPC: G21D3/06 ,  G06N3/08 ,  G06N3/04 ,  G06Q50/06 ,  G21C17/00

Abstract: The present invention relates to a device for tracking the basis of an abnormal state determination by using a neural network model, comprising: an abnormality type classification unit for classifying an abnormal state into a plurality of failures in an abnormal operation scenario in which a plurality of scenarios related to the abnormal state are stored; an operation variable deriving unit for deriving operation variables affecting an abnormal state determination result for each of the plurality of classified failures; a power plant operation variable weighting unit for weighting the variable related to the abnormal state from among the operation variables; and an abnormal state determination basis generation unit for tracking the basis of an abnormal state determination from the abnormal state determination result generated through the weighted power plant operation variable.