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Control device for large-scale equipment and control device for large-scale thermal power generation equipment

A technology of large-scale equipment and control devices, applied in the direction of adaptive control, general control system, control/regulation system, etc., can solve problems such as changing control logic, and achieve the effect of improving the accuracy of speculation

Active Publication Date: 2015-12-02
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when a large facility is operated under conditions not assumed in advance due to a change in the operating state of the large facility or a change in the environment, it may be necessary to change the control logic, etc.

Method used

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  • Control device for large-scale equipment and control device for large-scale thermal power generation equipment
  • Control device for large-scale equipment and control device for large-scale thermal power generation equipment
  • Control device for large-scale equipment and control device for large-scale thermal power generation equipment

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Experimental program
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Embodiment 1

[0052] refer to Figure 1 to Figure 13 , the control device for large-scale equipment according to the first embodiment of the present invention will be described.

[0053] figure 1 It is a system configuration diagram of the control device for large-scale equipment according to the first embodiment of the present invention. Such as figure 1 As shown, in the control device for large equipment in this embodiment, the large equipment 100 as the control object is controlled by the control device 200 .

[0054] The control device 200 for controlling the large equipment 100 is connected to a maintenance tool (maintenance tool) 910, so the operator of the large equipment 100 can control the control device via an external input device 900 and an image display device (such as a CRT display) 920 connected to the maintenance tool 910. 200.

[0055] The control device 200 includes a data preprocessing unit 300 , a numerical analysis unit 400 , a statistical model 500 , a model adjust...

no. 2 Embodiment

[0180] Next, use Figure 14 and Figure 15 , a second embodiment in which the control device for large-scale equipment according to the present invention is applied to large-scale thermal power generation equipment, that is, a control device for large-scale thermal power generation equipment, will be described.

[0181] The structure and function of the large-scale equipment control device 200 applied to the control device for large-scale thermal power generation equipment in this embodiment are the same as Figure 1 to Figure 13 The control device 200 is the same as the control device for large-scale equipment in the first embodiment shown, and therefore description of the control device 200 will be omitted here.

[0182] In addition, when the control device for large-scale equipment according to the present invention is used to control large-scale equipment other than thermal power generation large-scale equipment, it can of course also be applied Figure 1 to Figure 13 Th...

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Abstract

The purpose of the present invention is to provide a control device for a plant that can end an optimization calculation within a control period and that improves the estimation precision of a statistical model based on an RBF network, in the case that the statistical model is adjusted online by using measurement data of the plant. This control device for a plant comprises: a statistical model for estimating the value of a measurement signal obtained when a control signal is provided to the plant; a model construction database for saving data used in constructing the statistical model; a data preprocessor for statistically processing the measurement signal and generating model construction data; an operation method learning unit for learning a method for generating a model input so that the model output achieves a target value; and a model adjustment unit for adjusting the radius parameter of the statistical model included in the information saved in the model construction database. The statistical model is configured so as to generate the model output by using the result of adjusting the radius parameter by the model adjustment unit.

Description

technical field [0001] The present invention relates to a control device for a large plant, and particularly relates to a control device for a large thermal power plant that generates electricity using fossil fuels such as coal. Background technique [0002] A control device for a large facility processes a measurement signal of a state quantity of the large facility obtained from the large facility to be controlled, calculates a control signal (operation signal) to be supplied to the control target, and controls the operation of the control target. [0003] An algorithm for calculating the operation signal is installed in the control device of the large-scale equipment so that the measurement signal of the state quantity of the large-scale equipment satisfies its target value. [0004] As a control algorithm used in the control of large-scale equipment, there is a PI (Proportional / Integral) control algorithm. In PI control, the value obtained by multiplying the deviation b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B13/02G05B13/04
CPCG05B13/048
Inventor 江口彻楠见尚弘关合孝朗深井雅之清水悟
Owner HITACHI LTD
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