Method and system for controlling a multiple input/output proces

Details Method and system for controlling a multiple input/output proces Method and system for controlling a multiple input/output proces

1996-09-13

1998-07-07

Ruggiero, Joseph

Boots, shoes, and leggings

36414808, 3641481, 364157, 36447103, G06F 1900, F05B 1304

Patent

active

057778728

ABSTRACT:
A control system regulates a controlled process. A first controller receives at least a first input variable and a second input variable and produces at least a first control variable and a second control variable. A delay unifier associated with the first controller introduces a first delay to one of the first and second control variables, the first delay being determined as a function of a second delay associated with another of the first and second control variables, and outputs first and second control variables with unified delay. A processor models effects of the controlled process. The processor receives the delayed first and second control variables output by the first controller and produces estimated process output variables. A second controller processes a difference between measured process output variables and the estimated process output variables to correct for disturbances. The processed difference is added to the delayed first and second control variables output by the first controller, and the sum is received by the processor and the process being controlled.

REFERENCES:
patent: 3610899 (1971-10-01), Dahlin
patent: 4346433 (1982-08-01), Rutledge
patent: 4368510 (1983-01-01), Anderson
patent: 4407013 (1983-09-01), Arcara et al.
patent: 4423594 (1984-01-01), Ellis
patent: 4578747 (1986-03-01), Hifeg et al.
patent: 4602326 (1986-07-01), Kraus
patent: 4646226 (1987-02-01), Moon
patent: 4707779 (1987-11-01), Hu
patent: 4805126 (1989-02-01), Rodems
patent: 4814968 (1989-03-01), Fukumoto
patent: 4893262 (1990-01-01), Kalata
patent: 4998051 (1991-03-01), Ito
patent: 5121332 (1992-06-01), Balakrishnan et al.
patent: 5144549 (1992-09-01), Youcef-Toumi
patent: 5446648 (1995-08-01), Abramovitch et al.
patent: 5519605 (1996-05-01), Cawlfield
patent: 5539634 (1996-07-01), He
"A Linear Programming Approach to Constrained Multivariable Process Control" by C. Brosilow et al., Control and Dynamic Systems, vol. 27, system Identification and Adaptive Control, 1988, Academic Press, Inc., pp. 141, 148 and 149.
"A Simple Adaptive Smith-Predictor for Controlling Time-Delay Systems" by A. Terry Bahill, Control Systems Magazine, May 1983, pp. 16-22.
"Theory and Problems of Feedback and Control Systems" by Joseph J. Distefano, III, Ph.D et al, 1967, McGraw-Hill, Inc., Chaapter 2, pp. 13 and 14.
"Multivariable Internal Model Control for a Full-Scale Industrial Distillation Column," by J.M. Wassick and R. Lal Tummala, IEEE Control Systems Magazine, 1989, pp. 91-96.
"Method for Automatic Adaptation of the Time Constant for a First Order Filter", from the Industrial and Engineering Chemistry Research, No. 29, 1991, pp. 275-277.

Affiliated with

Also associated with

Rating

Method and system for controlling a multiple input/output proces does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and system for controlling a multiple input/output proces, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for controlling a multiple input/output proces will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1213135