Control device, control model adjusting device and control model adjusting method

A technology of control model and control device, applied in the direction of control/regulation system, adaptive control, general control system, etc., can solve the problem of difficulty in setting, construction and adjustment of values, such as excessive labor, and achieve the effect of rapid correction

Active Publication Date: 2010-12-29
HITACHI LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it is difficult to set the difference between the coiling temperature of the steel plate predicted by the control model and the actual measured coiling temperature, depending on the steel type, thickness, rolling speed, target coiling temperature, There is a proble

Method used

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  • Control device, control model adjusting device and control model adjusting method
  • Control device, control model adjusting device and control model adjusting method
  • Control device, control model adjusting device and control model adjusting method

Examples

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Example

[0078]

[0079] figure 1 It is a block diagram showing a schematic configuration of a first embodiment example of the present invention (hereinafter referred to as "this example"). In addition, each function is described as a block, but the entire functional block described as "...mechanism" is composed of one or more computers and is realized by software. The control device 100 receives various signals from the control object 150 and outputs various control signals for controlling the control object to the control object 150.

[0080] First, the outline of the control target 150 will be described. In this example, the control target 150 represents an example of a coiling temperature control device for hot rolling. The control target 150 in this example is rolling in which the steel plate 151 of about 900°C rolled by the rolling mill 157 of the rolling mill 152 is cooled to a predetermined temperature in the coil cooling device 153 and is coiled in the downcoiler 154 Device. I...

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Abstract

The invention provides a control device, a control model adjusting device and control model adjusting method, which can not cause reduction of control precision due to divergence of characteristics of a control model and a control object, when the control model for simulating input output relation of the control object is used for control. The control device is provided with a model adjustment starting mechanism which measures a timing of stable actual control quantity, extracts actual data from the control object to generate an execution permission timing for model adjustment; a first control quantity calculating mechanism which uses a present control model to calculate a predictive control quantity at the timing started by the model adjustment starting mechanism; a second control quantity calculating mechanism which calculates a predictive control quantity in the same operation by using values predefined according to parameter changes of an adjusting object of the control model; a control model correction calculating mechanism which extracts the predictive control quantity calculated by the first control quantity calculating mechanism and the predictive control quantity calculated by the second control quantity calculating mechanism, and actual control quantity and the like, so as to obtain a correction of parameters of the adjusting object of the control model.

Description

technical field [0001] The present invention relates to a control model adjustment device, a control model adjustment method, and a control device including them, which improve the matching degree between a control model and an actual control object by changing parameters of the control model. [0002] In particular, the suitable control model is a complex model such as the plate temperature estimation model used in the hot rolling coil temperature control or the soot concentration estimation model in the tunnel ventilation control, and it cannot be calculated algebraically. A control model adjustment device and an adjustment method in the case of a change amount of a model parameter corresponding to a deviation between a control model and an actual control object. Background technique [0003] As a conventional method for adjusting the control model, for example, Patent Document 1 discloses a method that includes a learning mechanism that uses the actually measured output s...

Claims

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Application Information

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IPC IPC(8): G05B13/04
Inventor 鹿山昌宏林刚资
Owner HITACHI LTD
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