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Control device for boiler equipment and gas concentration concluding apparatus

A boiler equipment and control device technology, applied in the direction of combustion control, adaptive control, general control system, etc., can solve the problem that the optimal solution is not disclosed or implied, and achieve the effect of improving the accuracy of inference

Inactive Publication Date: 2008-06-18
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
[0020] 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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  • Control device for boiler equipment and gas concentration concluding apparatus
  • Control device for boiler equipment and gas concentration concluding apparatus
  • Control device for boiler equipment and gas concentration concluding apparatus

Examples

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Embodiment

[0052] Fig. 1 is a control block diagram showing a control device of a boiler plant according to an embodiment of the present invention;

[0053] In FIG. 1, for example, the control device 200 of the equipment 100 that takes the boiler equipment of thermal power generation equipment as the control object receives measurement information 205 of various process values ​​from the equipment 100 of the control object, and uses these measurement information 205 to control Preprogrammed calculations are performed within 200 , and an operation command signal (control signal) 285 is sent to the device 100 .

[0054] 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 device. The state of the device 100 .

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Abstract

The invention is aimed at providing a controlling device of a boiler equipment, which can eliminate the dangerous of dropping in locally optimal solution as much as possible even if the error between the model of a simulation controlled object and the action of the real controlled object exists, so that the controlled object can be operated and controlled steadily and safely. The invention calculates the tendency of the operation value based on the operation data, and calculates the error between the processing value calculated based on an equipment model and the detected value of the boiler equipment, and models the relation between the processing value and the operation order value, and then calculates the operation order candidate value by using the error value.

Description

technical field [0001] 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 [0002] 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. [0003] In order to configure a control device using a learning function with teaching, it is necessary to prepare success stories as teaching data in advance, so a learning method without teaching has also been proposed. [0004] As an example of teaching-free learning, there is reinforcement learning, but this reinforcement learning is a framework for learning control, throu...

Claims

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Application Information

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Patent Type & Authority Applications(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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