Pneumatic system operation control device and control method

A pneumatic system operation control device that variably controls a rotational speed of an electric motor for driving an air compressor so that a supply pressure to a terminal device becomes constant using a measurement value of a discharge pressure of the air compressor and a measurement value of the supply pressure to the terminal device, the pneumatic system operation control device comprising:

• a measurement value storage unit that stores the discharge pressure measurement value and the supply pressure measurement value;
• an air piping network model input unit that receives an air piping network model composed of data for calculating air flow in an air piping network, the air piping network being a path for supplying compressed air from the air compressor to the terminal device;
• an air piping network model storage unit that stores the air piping network model;
• a terminal device flow rate calculation unit that calculates an air flow rate supplied to the terminal device using the discharge pressure measurement value, the supply pressure measurement value, and the air piping network model;
• a terminal device flow rate storage unit that stores the air flow rate;
• a control set value calculation unit that calculates an updating value for a control set value using a control set value for variably controlling the rotational speed of the electric motor for driving the air compressor, the air flow rate and the air piping network model;
• a control set value storage unit that stores the updating value, and
• a control set value updating command value generation unit that generates a command value for updating a control set value for variably controlling the rotational speed of the electric motor for driving the air compressor using the updating value.