Partitioned control system and method

Data processing: generic control systems or specific application – Generic control system – apparatus or process – Optimization or adaptive control

Reexamination Certificate

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C700S029000, C700S037000, C700S045000

Reexamination Certificate

active

06959218

ABSTRACT:
A method for controlling a controlled process in response to an input signal and a disturbance signal includes modeling the controlled process in a process model; controlling the process model by a first controller; isolating the first controller from the disturbance signal so that the first controller may be designed for an optimal response to the input signal; driving the first controller by a first drive signal proportional to the difference between the input signal and a process model output signal; isolating a second controller from the input signal so that the second controller may be designed for an optimal response to the disturbance signal; and driving the second controller by a second drive signal proportional to difference between a process output signal and the process model output signal.

REFERENCES:
patent: 4663703 (1987-05-01), Axelby et al.
patent: 4814968 (1989-03-01), Fukumoto
patent: 4842089 (1989-06-01), Kimbrough et al.
patent: 4860215 (1989-08-01), Seraji
patent: 5034312 (1991-07-01), Saito
patent: 5043863 (1991-08-01), Bristol et al.
patent: 5394322 (1995-02-01), Hansen
patent: 5455763 (1995-10-01), Feingold
patent: 5481453 (1996-01-01), Desantis
patent: 5561599 (1996-10-01), Lu
patent: 5791160 (1998-08-01), Mandler et al.
patent: 5892679 (1999-04-01), He
patent: 6162488 (2000-12-01), Gevelber et al.
patent: 6546295 (2003-04-01), Pyotsia et al.
Debelak, Kenneth A. et al. Partitioned Error Control.Ind. Eng. Chem. Res.38: 4113-4119 (1999).
Lundstrom, Petter et al. Two-Degree-of-Freedom Controller Design for an I11-Conditioned Distillation Process Using μ-Synthesis.IEEE Transactions on Control Systems Technology, 7: No. 1, 12-21 (1999).
Limebeer, D. J. N. et al. On the Design of Robust Two Degree of Freedom Controllers.Automatica29: No. 1, 157-168 (1993).
van Diggelen, F. et al. A Hadamard Weighted Loop Shaping Design Procedure.Proceedings of the 31stIEEE Conference on Decision and Control.2: 2193-2198 (1992).
Skogestad, Sigurd et al. Robust Control of I11-Conditioned Plants: High-Purity Distillation.IEEE Transactions on Automatic Control33 No. 12, 1092-1105 (1988).
Lopez, A.M., Tuning Controllers With Error-Integral Criteria.Instrumentation Technology57-62 (1967).
Rovira, Alberto A., Tuning Controllers for Setpoint Changes.Instruments&Control Systems42: 67-69 (1969).
Tyreus, Bjorn D., et al. Tuning PI Controllers for Integrator/Dead Time Processes.Ind. Eng. Chem. Res.31: 2625-2628 (1992).
Murrill, Paul W., The Controller; The Adjustment of Controllers; Controllers and Degrees of Freedom.Automatic Control of Processes. International Textbook Company, Scranton, Pennsylvania Ch. 16, 17, 18 319-385 (1967).
Skogestad, Sigurd et al. Classical Feedback Control.Multivariable Feedback Control Analysis and Design, John Wiley & Sons Ltd., West Sussex PO19 1US, England Ch. 2 15-62 (1996).
Astrom, Karl J. et al. Disturbance Models; Design: An Overview; Adaptive Control.Computer Controlled Systems Theory and Design, Prentice-Hall, Inc., Englewood Cliffs, NJ Ch. 6, 7, 14 121-173; 343-360 (1984).
Morari, Manfred et al. Fundamentals of SISO Feedback Control.Robust Process Control, Prentice Hall, Inc., Englewood Cliffs, NJ Ch 2 11-38 (1989).
Horowitz, Isaac M. Design of Feedback Control Systems for Independent Control of Transmission and Sensitivity Functions.Synthesis of Feedback Systems, Academic Press New York and London Ch. 6 246-298 (1963).

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