Pattern recognition adaptive controller

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364153, 364157, G05B 1302

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active

053553055

ABSTRACT:
A pattern recognition adaptive controller configured to dynamically adjust proportional gain and integral time control parameters to minimize integrated absolute errors between a setpoint and a monitored controlled variable. The pattern recognition adaptive controller receives a sampled signal representative of the controlled variable, and determines a smoothed signal based on the sampled signal. The controller characterizes a disturbance in the smoothed signal by a damping factor and a closed loop response time. When a significant load disturbance or setpoint change occurs, the controller estimates an optimal gain based on the damping factor, and an optimal integral time based on the response time. The estimated optimal gain and estimated optimal integral time are used to determining a new gain and a new integral time values, to which the control parameters of the controller are then set.

REFERENCES:
patent: Re33267 (1990-07-01), Kraus
patent: 4999557 (1991-03-01), Inoue
"Certain Block Diagrams and Dynamic Characteristics for Digital Controller", Translated from Automatika i Telenekhanika, vol. 23, No. 11, pp. 1451-1464, Nov. 1962, S. N. Diligenskii.
"Digital Controllers", Aleksandridi et al., pp. 519/1-519/6, Date unknown.
R. W. Haines, "HVAC Systems Design Handbook", TAB Professional and Reference Books, Blue Ridge Summit, Pa. (1988) (No Month).
D. E. Seborg, T. F. Edgar, & D. A. Mellichamp, "Process Dynamics and Control", John Wiley & Sons, N.Y. (1989) (Month Unknown).
A. B. Corripio, "Tuning of Industrial Control Systems", Instrument Society of America, Research Triangle Park, N.C. (1990) (Month Unknown).
K. J. Astrom, T. Hagglund, "Automatic Tuning of PID Controllers", Instrument Society of America, Research Triangle Park, N.C. (1988) (Month Unknown).
C. J. Harris & S. A. Billings, "Self-Tuning and Adaptive Control: Theory and Applicaionts", Peter Peregrinus LTD (1981) (Month Unknown).
K. J. Astrom and B. Wittenmark, "Adaptive Control", Addison-Wesley Publishing Company (May 1989).
T. W. Kraus 7 T. J. Myron, "Self-Tuning PID Controller Uses Pattern Recognition Approach", Control Engineering, pp. 106-111, Jun. 1984.
E. H. Bristol & T. W. Kraus, "Life with Pattern Adaptation", Proceedings 1984 American Control Conference, pp. 888-892, San Diego, Calif. (1984) (Month Unknown).
C. Rohrer & Clay Nesler, "Self-Tuning Using a Pattern Recognition Approach", Johnson Controls, Inc., Research Brief 228 (Jun. 13, 1986).
Frances Scheid, "Shaum's Outline Series--Theory & Problems of Numerical Analysis", McGraw-Hill Book Co., N.Y. (1968) (Month Unknown).
S. M. Pandit & S. M. Wu, "Timer Series & System Analysis with Applications", John Wiley & Sons, Inc., N.Y. (1933) (Month Unknown).

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