Process controlling method and system involving separate determi

Details Process controlling method and system involving separate determi Process controlling method and system involving separate determi

1983-03-21

1986-01-07

Smith, Jerry

Boots, shoes, and leggings

364160, 318632, G06F 1546

Patent

active

045637350

ABSTRACT:
A method and system of process control comprising in combination a feed-back control in which a deviation of a controlled variable with reference to a target value is applied to a velocity type controller and a manipulated variable is determined in accordance with the output of the controller and a feed-forward control in which a disturbance is detected and a disturbance compensation is determined and added in determining the manipulated variable to counteract the effect of the disturbance. A static compensation component and a dynamic compensation component of the disturbance compensation are separately determined in accordance with the detected disturbance, and the static compensation component is converted to a velocity type signal, and added to the output of the controller to obtain a first sum. The first sum is converted to a position type signal, and added to the dynamic compensation component to obtain a second sum, in accordance with which the manipulated variable is determined.

REFERENCES:
patent: 3758762 (1973-09-01), Littman et al.
patent: 3767900 (1973-10-01), Chao et al.
patent: 3798430 (1974-03-01), Simon et al.
patent: 3939328 (1976-02-01), Davis
patent: 4313165 (1982-01-01), Clelford et al.
patent: 4319320 (1982-03-01), Sato et al.
"Process-Control Systems," F. G. Shinskey, pp. 235-237, 1967, McGraw-Hill, Inc.
Hippe et al, "Ein Einfaches Verhafren Stoergeoessenkompensation", 8129 Regelungstechnik, vol. 29, No. 3, Mar. 1981.

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