Control device, control method and computer readable medium for controlling plant based on prediction model and constraint condition

A control method of a plant which controls operation amounts of a plurality of pieces of equipment constituting the plant, the control method comprising:

• a step of deriving a prediction model to which a measurement value measured at the plant is input, and from which a monitoring target value which is a value to be monitored is output;
• a step of calculating the operation amounts of a plurality of pieces of the equipment in a case where the monitoring target value which is to be output becomes a desired value, and calculating differences between the operation amounts of an existing control and the calculated operation amounts as first adjustment amounts;
• a step of setting a constraint condition of the operation amounts of a plurality of pieces of the equipment based on the measurement value and an operation condition of the plant when the measurement value is calculated;
• and
• a step of calculating second adjustment amounts obtained by correcting the first adjustment amounts by applying the set constraint condition, for each of a plurality of pieces of the equipment, and calculating a plurality of the adjusted operation amounts based on each of the calculated second adjustment amounts,
• wherein the step of calculating the operation amounts calculates a plurality of the adjusted operation amounts based on a plurality of the second adjustment amounts and operation amounts of the existing control and inputs a test signal to the operation amounts of the existing control.

A non-transitory computer-readable storage medium storing a control program of a plant which controls operation amounts of a plurality of pieces of equipment constituting the plant, the control program of the plant causing a computer to execute the method comprising:

• a step of deriving a prediction model to which a measurement value measured at the plant is input, and from which a monitoring target value which is a value to be monitored is output;
• a step of calculating the operation amounts of a plurality of pieces of the equipment in a case where the monitoring target value which is to be output becomes a desired value, and calculating differences between the operation amounts of an existing control and the calculated operation amounts as first adjustment amounts;
• a step of setting a constraint condition of the operation amounts of a plurality of pieces of the equipment based on the measurement value and an operation condition of the plant when the measurement value is measured;
• and
• a step of calculating second adjustment amounts obtained by correcting the first adjustment amounts by applying the set constraint condition, for each of a plurality of the equipment, and calculating a plurality of the adjusted operation amounts based on each of the calculated second adjustment amounts,
• wherein the step of calculating the operation amounts calculates a plurality of the adjusted operation amounts based on a plurality of the second adjustment amounts and operation amounts of the existing control and inputs a test signal to the operation amounts of the existing control.