Patent ID: 6535795
Filing Date: 2003-03-18
Classification: G05B

Abstract:
A method for adaptively controlling the rate of addition of a chemical to a process comprising:conducting a process which is controlled by a distributed control system; utilizing an adaptive process control optimization system in a host relationship to the distributed control system wherein the process control optimization system provides (i) a plurality of goal seeking intelligent software objects further comprising sensor software objects providing current data, historical data, and statistical data; (ii) expert system software objects providing at least one associated rules knowledge base; (iii) adaptive models software objects providing at least one modeling methodology; (iv) predictor software objects providing at least one predictor selection criteria; (v) optimizer software objects providing at least one goal and providing at least one process constraint; and (vi) communications translator software objects providing one or more data communications protocols for a given sampling delta, comprising the concurrent steps of: determining, within the optimizer software objects, output data values which achieve the goals without violating the process constraints; examining, within the expert system software objects, the predictive models that achieve the goals without violating the process constraints, wherein the adaptive process control optimization system changes its models to adapt to current process conditions; determining, within the expert system software objects, at least one adaptive intervention; providing the at least one adaptive intervention as an input to a distributed control system; and utilizing the at least one adaptive intervention input to the distributed control system for controlling the process.