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Domain optimization-based decomposition furnace outlet temperature prediction control method in cement sintering system

A technology of model predictive control and cement industry, which is applied in the direction of adaptive control, general control system, control/regulation system, etc. It can solve problems such as untimely update and unreasonable manual setting, so as to reduce energy consumption and minimize energy consumption. Invest in and ensure the effect of stability

Active Publication Date: 2021-11-02
YANSHAN UNIV
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a predictive control method for the temperature model of the calciner in the cement industry based on neighborhood optimization, which can adjust the optimal setting value in real time according to the outlet temperature of the calciner itself in the future and the influence of the neighborhood, and avoid manual setting. The shortcomings of unreasonable fixed value and inability to update in time

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  • Domain optimization-based decomposition furnace outlet temperature prediction control method in cement sintering system
  • Domain optimization-based decomposition furnace outlet temperature prediction control method in cement sintering system
  • Domain optimization-based decomposition furnace outlet temperature prediction control method in cement sintering system

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Embodiment Construction

[0056] The present invention is aimed at the time-lag and randomness of the cement industry process itself, and it is difficult to control it with traditional control methods. At present, the existing research methods in this technical field are difficult to solve the variable coupling under the complex working conditions of the cement firing system. A predictive control method based on domain optimization for the outlet temperature of the calciner in the cement firing system was developed based on problems such as time-varying delay and time-varying time delay.

[0057] Below in conjunction with embodiment the present invention is described in further detail:

[0058] figure 1 It is a framework flow chart of the present invention, which includes: building a calciner outlet temperature prediction model based on a long-short-time neural network; building a real-time neighborhood information intervention model based on a long-short-time neural network; using domain information t...

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Abstract

The invention discloses a domain optimization-based decomposition furnace outlet temperature prediction control method in a cement sintering system. The method comprises the following steps: constructing a decomposition furnace outlet temperature prediction model based on a long-short time network; constructing a neighborhood intervention model based on a long and short time network; and using a local optimization objective function solving method of neighborhood information. The invention discloses a decomposition furnace outlet temperature control method based on a predictive control framework. According to the invention, neighborhood information can be utilized to continuously optimize a real-time controlled objective function, and the prediction control method ensures stable operation of working conditions.

Description

technical field [0001] The invention relates to a method for predicting and controlling the temperature model of a calciner in the cement industry based on neighborhood optimization, and belongs to the technical field of control in the cement firing process. Background technique [0002] In cement production, the temperature of the cement calciner is an important factor affecting the quality of cement. To ensure that the temperature of the cement calciner is reasonable and stable is the key to ensure the good operation of the cement precalciner system. However, in the cement manufacturing process, each process restricts each other, and the working conditions change dynamically, which often results in the inability to adjust the operating index of the calciner temperature in time manually. Material fluctuations, changes in working conditions and the consideration of energy saving also bring certain difficulties to the temperature control of the calciner. Moreover, the cement...

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Application Information

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IPC IPC(8): G05B13/04
CPCG05B13/042Y02P90/02
Inventor 孙超刘鹏飞郭浩然张园赵海超郝晓辰
Owner YANSHAN UNIV
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