水泥篦冷机混杂建模与仿真研究
发布时间：2018-12-16 01:17
【摘要】：水泥生产过程一般以连续动态系统为主,实际上,同样具有很大的离散特性,对于篦冷机系统的连续过程也极易出现造成系统稳定性差的突变工况,因此,为了使篦冷机能够达到最优运行状态,需要将具有离散性质的篦冷机突变工况与篦冷机的连续动态特性结合起来,组成具有混杂特性的动态系统。本文从国内篦冷机的建模研究现状出发,针对水泥企业的篦冷机冷却环节工况复杂多变,测控点少,本身还具有非线性、大滞后和时变等不利特性,结合混杂逻辑动态(Mixed Logical Dynamical)模型建模理论,将混杂系统的连续动态、离散动态以及他们之间的逻辑关系相结合,进行统一分析研究,建立了篦冷机的混杂结构模型,主要研究成果有:(1)根据篦冷机建模研究现状以及混杂建模方法发展现状,以实际水泥企业为载体,结合现场实际操作经验,获取现场实际数据,提取了篦冷机关键建模参数,建立了基于MLD建模理论的篦冷机混杂结构模型。(2)应用模糊聚类算法获取篦冷机混杂结构模型的状态工作点,并以此为依据建立混杂结构模型的离散模型和连续变量动态模型。(3)建立了篦冷机的六个单输入单输出连续变量动态模型和四个双输入单输出连续变量动态模型,并分别进行了模型校验,达到了较好的仿真效果。
[Abstract]:Cement production process is generally continuous dynamic system, in fact, it also has a large discrete characteristics, for the continuous process of grate cooler system, it is easy to cause sudden change of system stability, so, In order to make the grate cooler achieve the optimal operating state, it is necessary to combine the abrupt condition of the grate cooler with the continuous dynamic characteristics of the grate cooler with discrete properties to form a dynamic system with hybrid characteristics. Based on the present situation of the modeling of grate cooler in China, this paper aims at the disadvantages of complex and changeable working conditions, less measuring and control points, nonlinear, large lag and time-varying characteristics of grate cooler in cement enterprises. Based on the hybrid logic dynamic (Mixed Logical Dynamical) model modeling theory, the hybrid structure model of grate cooler is established by combining the continuous dynamic, discrete dynamics and the logic relations between them. The main research results are as follows: (1) according to the research status of grate cooler modeling and the development status of hybrid modeling method, taking the actual cement enterprise as the carrier, combined with the field practical operation experience, to obtain the field actual data, The key modeling parameters of grate cooler are extracted, and the hybrid structure model of grate cooler based on MLD modeling theory is established. (2) the working point of hybrid structure model of grate cooler is obtained by using fuzzy clustering algorithm. Based on this, the discrete model and continuous variable dynamic model of hybrid structure model are established. (3) six single input single output continuous variable dynamic models and four double input single output continuous variable dynamic models of grate cooler are established. The model verification is carried out, and the simulation results are good.
【学位授予单位】：济南大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TQ172.622.4
本文编号：2381612
[Abstract]:Cement production process is generally continuous dynamic system, in fact, it also has a large discrete characteristics, for the continuous process of grate cooler system, it is easy to cause sudden change of system stability, so, In order to make the grate cooler achieve the optimal operating state, it is necessary to combine the abrupt condition of the grate cooler with the continuous dynamic characteristics of the grate cooler with discrete properties to form a dynamic system with hybrid characteristics. Based on the present situation of the modeling of grate cooler in China, this paper aims at the disadvantages of complex and changeable working conditions, less measuring and control points, nonlinear, large lag and time-varying characteristics of grate cooler in cement enterprises. Based on the hybrid logic dynamic (Mixed Logical Dynamical) model modeling theory, the hybrid structure model of grate cooler is established by combining the continuous dynamic, discrete dynamics and the logic relations between them. The main research results are as follows: (1) according to the research status of grate cooler modeling and the development status of hybrid modeling method, taking the actual cement enterprise as the carrier, combined with the field practical operation experience, to obtain the field actual data, The key modeling parameters of grate cooler are extracted, and the hybrid structure model of grate cooler based on MLD modeling theory is established. (2) the working point of hybrid structure model of grate cooler is obtained by using fuzzy clustering algorithm. Based on this, the discrete model and continuous variable dynamic model of hybrid structure model are established. (3) six single input single output continuous variable dynamic models and four double input single output continuous variable dynamic models of grate cooler are established. The model verification is carried out, and the simulation results are good.
【学位授予单位】：济南大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TQ172.622.4
【参考文献】
相关硕士学位论文 前1条
1 张加良;新型干法水泥生产线烧成与冷却过程控制研究[D];济南大学;2011年
，本文编号：2381612
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