System for supporting operation during plant accidents and method for supporting operation during plant accidents

摘要

The purpose of the present invention is to provide a system (20) for supporting operation during plant accidents, capable of determining the health of sensors without being affected by device malfunction during plant accidents. The system (20) for supporting operation during plant accidents comprises: an event identification device (4) that identifies the state of a plant; a plant behavior analysis device (3) that predicts the progress of a process state after an event has occurred, using at least the event identification results as the initial conditions for plant behavior analysis; and a sensor health determination device (8) that compares sensor signals and the results from the prediction for the progress of the process state, being the output from the plant behavior analysis device, and determines sensor health.