OPERATION ASSISTANCE APPARATUS AT TIME OF ACCIDENT IN PLANT

摘要

An operator of a nuclear plan is provided with a margin time up to the execution of the action at the time of an accident. The system includes: a sensor signal input device; an accident event estimation device; a procedure manual database; a procedure manual selection device; a procedure automatic check device that checks items in the procedure manual and determines a next action using the sensor signal; a plant state analysis device that analyzes a state of the plant in a case where the actions are executed at a plurality of action timings based on the accident event and the next action, and calculates predicted values of the sensor signals; an action threshold value database in which an action threshold values of the sensor signals corresponding to the action procedure at the time of the accident are stored; and an action margin time calculation device.

主权项

1. An operation assistance apparatus at the time of an accident in a plant comprising:
a sensor signal input device that inputs a sensor signal; an accident event estimation device that estimates an accident event in the plant from the sensor signal; a procedure manual database in which procedure manuals for the accident are stored; a procedure manual selection device that determines a procedure manual that will be referred to from the procedure manual database based on the accident event; a procedure automatic check device that checks items in the procedure manual and determines a next action using the sensor signal; a plant state analysis device that analyzes a state of the plant in a case where the actions are executed at a plurality of action timings based on the accident event and the next action, and calculates predicted values of the sensor signals; an action threshold value database in which an action threshold values of the sensor signals corresponding to the action procedure at the time of the accident are stored; and an action margin time calculation device that determines whether or not a predicted value of the sensor signal reaches the action threshold value and calculates the action margin time up to the execution of the action.