Controlling a non-linear process

a non-linear process and control technology, applied in the field of prediction modeling and control, can solve the problems of inability to arrive at analytical solutions in most real-world systems, inability to accurately estimate and inability to apply each of these two approaches to real-world complex systems. to achieve the effect of improving the estimate of the current state of the process
US20080208778A1Inactive Publication Date: 2008-08-28ROCKWELL AUTOMATION TECH
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
ROCKWELL AUTOMATION TECH
Publication Date
2008-08-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

System and method for modeling a nonlinear process. A combined model for predictive optimization or control of a nonlinear process includes a nonlinear approximator, coupled to a parameterized dynamic or static model, operable to model the nonlinear process. The nonlinear approximator receives process inputs, and generates parameters for the parameterized dynamic model. The parameterized dynamic model receives the parameters and process inputs, and generates predicted process outputs based on the parameters and process inputs, where the predicted process outputs are useable to analyze and / or control the nonlinear process. The combined model may be trained in an integrated manner, e.g., substantially concurrently, by identifying process inputs and outputs (I / O), collecting data for process I / O, determining constraints on model behavior from prior knowledge, formulating an optimization problem, executing an optimization algorithm to determine model parameters subject to the determined constraints, and verifying the compliance of the model with the constraints.
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Description

PRIORITY AND CONTINUATION DATA

[0001] This application is a divisional application of U.S. application Ser. No. 10 / 842,157, titled “Parametric Universal NonLinear Dynamics Approximator and Use”, filed May. 10, 2004, whose inventors were Bijan Sayyar-Rodsari, Edward Plumer, Eric Hartman, Kadir Liano, and Celso Axelrud, which claims benefit of priority to U.S. Provisional Application 60 / 545,766 titled “Parametric Universal Nonlinear Dynamics Approximator and Use”, filed Feb. 19, 2004, whose inventors were Bijan Sayyar-Rodsari, Edward Plumer, Eric Hartman, Kadir Liano, and Celso Axelrud, and which is a Continuation-In-Part of U.S. application Ser. No. 10 / 730,835, titled “System and Method of Adaptive Control of Processes with Varying Dynamics”, filed Dec. 9, 2003, whose inventors were Bijan Sayyar-Rodsari, Eric Hartman, Celso Axelrud, and Kadir Liano, which issued as U.S. Pat. No. 7,039,475, and which claims benefit of priority to U.S. Provisional Application 60 / 431,821 titled “Parametri...

Claims

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