Method for hybrid system modeling and coordinated optimization control of blast-furnace hot blast stove

A hybrid system, coordinated optimization technology, applied in the direction of adaptive control, general control system, control/regulation system, etc., can solve problems affecting the working efficiency of the hot blast stove, improving, ignoring the integrity of the hot blast stove system, etc.

Inactive Publication Date: 2013-09-11
ZHEJIANG UNIV
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Problems solved by technology

[0007] However, the current technology and research methods separate the combustion period of the blast furnace hot blast stove from the blast period, and tend to study the characteristics of a single hot blast stove, ignoring the connection betw

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  • Method for hybrid system modeling and coordinated optimization control of blast-furnace hot blast stove
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  • Method for hybrid system modeling and coordinated optimization control of blast-furnace hot blast stove

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings.

[0029] see figure 1 , the method sequence of the present invention includes the following steps: (1) data acquisition and preprocessing; (2) identifying and obtaining the state space model of the blast furnace hot blast stove; (3) establishing a hybrid system model of the blast furnace hot blast stove; (4) coordinating the blast furnace hot blast stove optimized control.

[0030] Each step is described in detail as follows:

[0031] 1. Data collection and preprocessing:

[0032] Although the structure of the blast furnace hot blast stove is different, their working principle is basically the same. A cycle of a hot stove can be divided into two working stages: the combustion period and the air supply period.

[0033] Combustion period: Blast furnace gas and air are mixed and burned in the combustion chamber to produce high-temperature flue gas. The high-temperature ...

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Abstract

The invention discloses a method for hybrid system modeling and coordinated optimization control of a blast-furnace hot blast stove. The method includes the steps of using subspace identification for respectively obtaining a combustion period model and an air supply period model of the blast-furnace hot blast stove so that process conditions can be effectively reflected, integrating the combustion model and the air supply model, establishing a hybrid system model based on a mixed logical dynamical method and finally realizing the coordinated optimization control of the blast-furnace hot blast stove by the use of a predictive control for the hybrid system. The method has the significant advantages of more closely reflecting the working cycle of the hot blast stove, more reasonably controlling the air supply quality of the hot blast stove and having strong adaptability. Furthermore, the method has the good effects on guaranteeing stable production and safe operation of the blast furnace, improving the smelting quality of the blast furnace, saving gas resource consumption, and the like. And thus, the method has better economic and social benefits.

Description

technical field [0001] The invention relates to energy and power engineering technology, in particular to a modeling and coordination optimization control method for a hybrid system of a blast furnace hot blast stove. Background technique [0002] The iron and steel industry is one of the most important basic industries in the national economy. It involves a wide range of industries, has a high degree of industrial correlation, and is strongly driven by consumption. It plays an important role in economic construction, social development, national defense construction, fiscal taxation, and stable employment. Steel has always been known as industrial food. It has been the main structural material used by humans since the Industrial Revolution. Its development is closely related to the progress of human civilization. Therefore, the production capacity and consumption level of steel are important indicators to measure a country's economic level and comprehensive national strengt...

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Application Information

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IPC IPC(8): G05B13/04
Inventor 杨春节滕宇吴平林舒陈毅夫周哲
Owner ZHEJIANG UNIV
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