| CPC G05B 19/41885 (2013.01) [C10G 7/12 (2013.01); C10G 11/187 (2013.01); C10G 45/72 (2013.01); G06Q 10/0637 (2013.01); G06Q 50/04 (2013.01); C10G 2400/02 (2013.01); G05B 2219/32385 (2013.01)] | 20 Claims |
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1. A control system for controlling a production site configured to produce one or more production site outputs selected from one or more of products, semi-finished products, and intermediates, the control system comprising:
at least a portion of the production site that includes at least one process unit; and
one or more computers executing one or more programs that cause the one or more computers to provide functioning sections comprising:
a planning section that generates a production plan for the production site and schedule information corresponding to the production plan, using a planning model;
an actual operation information acquiring section acquires actual operation information, obtained when the production site actually operates, via a network;
a simulating section that simulates operation of the at least a portion of the production site based on a simulation model of the at least a portion of the production site, the simulating section acquires site information relating to the production site and the schedule information corresponding to the production plan supplied by the planning section, the simulating section uses the site information to simulate the operation of the at least a portion of the production site occurring in a case where the operation of the at least a portion of the production site is performed according to the schedule information and generate a simulation result, and the simulating section outputs the simulation result for the at least a portion of the production site;
a monitoring section that monitors actual operation of the at least a portion of the production site using the actual operation information supplied by the actual operation information acquiring section;
a calibrating section that calibrates the simulation model, based on a difference between the simulated operation and the actual operation, to generate a simulation model that has been calibrated; and
a control section that controls the at least a portion of the production site based on the simulation result obtained from the simulating section,
wherein the simulation result outputted by the simulating section includes information such as targets for a production amount, stream properties, and optimal operating conditions for the at least a portion of the production site, wherein the one or more computers executing the one or more programs are configured to provide for the simulating section to supply the simulation result, which includes the targets for the production amount, the stream properties, and the optimal operating conditions for the at least a portion of the production site, to the monitoring section and the control section,
wherein the monitoring section is configured to compare the simulation result supplied from the simulating section and the actual operation information supplied from the actual operation information acquiring section, and if a difference between the simulation result and the actual operation information exceeds a predetermined threshold value, the monitoring section signals the calibrating section to calibrate the simulation model,
wherein the simulation model used by the simulating section to generate the simulation result is the simulation model that has been calibrated in a case where the calibrating section has generated the simulation model that has been calibrated, and
wherein the control section controls the at least a portion of the production site by using the simulation result to set one or more targets for the production amount, the stream properties and the optimal operating conditions for the at least a portion of the production site, which are used by the control section to automatically control the at least one process unit using one of feedback control and feedforward control.
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