Feedback control system

Details Feedback control system Feedback control system

G - Physics

05

B

341/110

G05B 13/02 (2006.01) G05B 11/42 (2006.01)

Patent

CA 2025338

A control computation unit includes a delay element in addition to an integrating element and a proportional element. The delay time of this delay element is selected, following the time necessary for due settling (namely, the time required for rendering a controlled variable to follow changes in a control variable command), or the time necessary to restore the controlled variable to the control variable command when a controlled object involved has incurred a certain external disturbance. In case there exist a computation delay time, a dead time, and/or a detection delay time, respectively in the control computation unit, controlled system, and/or a control variable detector, then the delay time is selected equal to one of the computation delay time, dead time, and the detection delay time, or the sum of these times. Additional provision of the delay element with a delay time equal to the time desired for due settling to the control computation unit results in settling within the time equal to the time desired for due settling the response.

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