Fuzzy predictive control system for combustion process of lime kiln as well as control method of system

A technology of fuzzy prediction and combustion process, applied in general control systems, control/regulation systems, adaptive control, etc.

Inactive Publication Date: 2015-09-30
ANHUI UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

[0005] Aiming at the problems of inaccurate control of the existing predictive control model, poor practical applicability in the field of engineering, and large influence by on-site random disturbances, the present invention provides a fuzzy predictive control system and control method for the combustion process of a lime kiln, using predictive control and The control method combined with fuzzy decision-making, the predictive function of comprehensive predictive control and the optimal control effect of fuzzy control in a large deviation range solve the temperature control problem of large time-delay nonlinear systems

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  • Fuzzy predictive control system for combustion process of lime kiln as well as control method of system
  • Fuzzy predictive control system for combustion process of lime kiln as well as control method of system
  • Fuzzy predictive control system for combustion process of lime kiln as well as control method of system

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Embodiment 1

[0204] The fuzzy predictive control system of this embodiment includes a reference information input module, fuzzy controller, fuel valve, lime kiln control device, prediction module, feedback module and correction module; reference information input module, fuzzy controller, fuel valve and lime kiln control The device is connected in series in sequence; the fuel valve is connected in series with the prediction module, the feedback module and the fuzzy controller in sequence; the fuel valve is also connected with the correction module; the correction module is connected with the prediction module; the lime kiln control device is simultaneously connected with the correction module, the feedback module and the reference information Input module connection.

[0205] When the fuzzy predictive control system of this embodiment is applied to the lime kiln of Meishan Iron and Steel Works, the specific process is as follows:

[0206] An approximate simplified mathematical model is est...

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Abstract

The invention discloses a fuzzy predictive control system for a combustion process of a lime kiln as well as a control method of the system and belongs to the field of control on the combustion process. The fuzzy predictive control system comprises a reference information input module, a fuzzy controller, a fuel valve, a lime kiln control device, a prediction module, a feedback module and a correction module. A combustion temperature control system of the lime kiln has the characteristics of nonlinearity, time variability, model structure uncertainty and the like, a predictive control and fuzzy decision combined control method is adopted, an advanced prediction function of predictive control and the optimal control effect of fuzzy control in a large deviation range are integrated, and the temperature control problem of a large-time-delay nonlinear system is solved; the system can be put into actual production operation, the dynamic quality in the lime calcining temperature adjustment process is effectively improved, and the good actual application effect is realized.

Description

technical field [0001] The invention belongs to the field of combustion process control, and in particular relates to a fuzzy prediction control system and a control method for the combustion process of a lime kiln. Background technique [0002] As an important raw material for iron and steel metallurgy, active lime is mainly calcined in a metallurgical lime kiln, and the main measure of its quality is activity. It is related to many factors, including the composition and particle size of the limestone, the operation and feeding of the stone, the method of ash removal, the calorific value of the heating fuel, the control of the combustion temperature and process, and the control of the combustion temperature is the most important factor affecting the activity. . It must be controlled within an appropriate range. Because the lime calcination process is a complex physical and chemical reaction process, which has obvious characteristics of nonlinearity, large lag and uncertai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04
Inventor 章家岩冯旭刚钱家俊
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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