PREDICTION CONTROLLER - YASKAWA DENKI SEISAKUSHO KK

Title:

PREDICTION CONTROLLER

Document Type and Number:

WIPO Patent Application WO/1995/002854

Kind Code:

A1

Abstract:

A prediction controller such that the number of memories necessary and the number of operations in one sampling period are small and detection delay of the output of the controlled system is coped with. An increased target command value DELTAr(i+M) after M samplings, and an increased output value DELTAy(i-K) of the controlled system before K(K 0) samplings are inputted at the present time i in such a way that the output of the controlled system whose transfer function model is Gp(z) = (b1z-1 +...+ bNbz-Nb)/{(1-z-1) (1-a1z-1 -...- aNaz-Na)} agrees with the target command, and then, the control input v(i) is output to the controlled system. The prediction controller comprises means for storing the increased target command value, the constant for the prediction control, the increased values of the past outputs, and the control inputs of the past; means for determining a deviation e(i-K) from the increased target command value and the increased output value of the controlled system; and means for determining the control input v(i) at the current time.

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JP3227266	NUMERICAL CONTROLLER
JPH096405	METHOD FOR ADJUSTING COMPENSATOR
WO/1996/021891	SELF-OPTIMIZING DETERGENT CONTROLLER

Inventors:

NAKAMURA HIROSHI (JP)
TSURUTA KAZUHIRO (JP)

Application Number:

PCT/JP1994/001137

Publication Date:

January 26, 1995

Filing Date:

July 12, 1994

Export Citation:

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Assignee:

YASKAWA DENKI SEISAKUSHO KK (JP)
NAKAMURA HIROSHI (JP)
TSURUTA KAZUHIRO (JP)

International Classes:

G05B13/02; G05B13/04; G05B21/02; (IPC1-7): G05B11/36

Foreign References:

JPH05173602A	1993-07-13
JPH05165504A	1993-07-02
JPH0535309A	1993-02-12
JPS62118406A	1987-05-29

Other References: