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Gas concentration concluding method of boiler equipment and gas concentration concluding apparatus

A technology of gas concentration and coal-fired boilers, which is applied in the control of combustion, instruments, adaptive control, etc., can solve the problem of the optimal solution not being disclosed and implied, and achieve the effect of improving the accuracy of inference

Active Publication Date: 2013-03-20
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, there is a danger of becoming a local optimal solution in which the learning result depends on the model characteristics
[0021] In addition, the techniques described in Japanese Patent Application Laid-Open No. 2000-35956 and the like do not disclose or hint at the safe and stable operation and control of the control object, and at the same time obtain the optimal solution.

Method used

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  • Gas concentration concluding method of boiler equipment and gas concentration concluding apparatus
  • Gas concentration concluding method of boiler equipment and gas concentration concluding apparatus
  • Gas concentration concluding method of boiler equipment and gas concentration concluding apparatus

Examples

Experimental program
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Embodiment

[0053] figure 1 It is a control block diagram showing a control device of a boiler plant according to an embodiment of the present invention;

[0054] exist figure 1 Among them, for example, the control device 200 of the equipment 100 that takes the boiler equipment of the thermal power generation equipment as the control object receives the measurement information 205 of various process values ​​from the equipment 100 of the control object, and uses the measurement information 205 to perform the process in the control device 200. Pre-programmed calculations send an operation instruction signal (control signal) 285 to the device 100 .

[0055] The device 100 is controlled by operating an operating device included in the device 100 according to an operation command signal 285 received from the control device 200, for example, an actuator such as the opening degree of a valve or the opening degree of a shock absorber that adjusts the flow rate of a fluid flowing through the dev...

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PUM

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Abstract

This invention provides a gas concentration concluding method of a boiler equipment, making use of a neural network to conclude the concentration of the gas component exhausted from the boiler equipment, and making use of the neural network used by a plurality of neural networks prepared for each coal category and the neural network for judging the coal category proportion to conclude. The invention further provides a gas concentration concluding apparatus of the boiler equipment, making use of the neural network to conclude the concentration of the gas component exhausted from the boiler equipment, a, comprising a summate which makes use of the neural network used by a plurality of neural networks prepared for each coal category, the neural network for judging the coal category proportion and the mixed proportion concluded by the neural network for judging the coal category proportion to do weighted average to the concluded value of the gas concentration exported a plurality of neural networks prepared for each coal category.

Description

[0001] This application is a divisional application of the application with the application number 2007101964803, the application date is December 5, 2007, and the invention title is "control device for boiler equipment and gas concentration estimation device". technical field [0002] The present invention relates to a control device for a boiler plant. In addition, the present invention relates to estimating the concentration of gas components of a coal-fired boiler, particularly CO concentration, NO X Concentration methods and apparatus. Background technique [0003] In the field of equipment control, the control logic based on PID control has always been the mainstream. In addition, many technologies have been proposed that can flexibly respond to the characteristics of equipment through a learning function with teaching represented by a neural network. [0004] In order to configure a control device using a learning function with teaching, it is necessary to prepare s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B13/04F23N5/00
Inventor 山田昭彦关合孝朗林喜治江口彻深井雅之清水悟楠见尚弘
Owner HITACHI LTD
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