Industrial plant evaluation device and industrial plant evaluation method

An industrial plant evaluation device comprising:

• a reception unit configured to receives, from information transmitted from an industrial plant, an actual machine manipulated variable in process control of the industrial plant and an actual machine process variable to be controlled by the process control;
• an estimation unit configured to estimate an estimated process variable using a process model defining a mathematical relationship between a manipulated variable and a process variable in the process control, the estimated process variable is obtained by substituting the actual machine manipulated variable for the manipulated variable in the process model;
• a comparison unit configured to compare the estimated process variable and the actual machine process variable;
• and
• a prediction unit configured to predict a future manipulated variable based on past data of the actual machine manipulated variable and to determine a future process variable by substituting the future manipulated variable for the manipulated variable in the process model, wherein
• a result of a comparison of the estimated process variable and the actual machine process variable by the comparison unit is used to generate an evaluation result of the industrial plant.