INTELLIGENT CONDITION MONITORING METHOD AND SYSTEM FOR NUCLEAR POWER PLANTS

摘要

The present invention provides a method for monitoring the state of a nuclear power plant that can reduce the state prediction error of a sensor during startup, full output and stop operation of a nuclear power plant, and remotely and automatically diagnose the state of a sensor, device, system, and power plant to provide early warning without an error alarm, and In order to provide a system, a first layer that detects abnormal symptoms of the sensor and the device by comparing the sensor measurement value and the device measurement value with the predicted value, and the type of the sensor, and the sensor provided from the first layer The second layer for diagnosing the presence or absence of abnormality of the sensor based on the abnormality value, and the detection and diagnosis result of the sensor provided from the first and second layers, and the abnormal symptom result of the device provided from the first layer It includes a third layer for diagnosing the status of nuclear power plants based on the