循环流化床锅炉是一个多参数、非线性、时变及多变量紧密耦合的复杂系统,使得其自动控制比一般锅炉更加复杂和困难,因此建立循环流化床锅炉动态模型,分析和研究锅炉动态特性,弄清楚众多变量间的相互关系、耦合程度以及对燃烧过程的影响方式,对循环流化床锅炉设计改进、锅炉参数优化、生产优化以及自动控制系统的设计、调试和控制系统的可靠运行至关重要。基于以上原因,本文建立了一个循环流化床锅炉整体动态简化数学模型,该模型包括燃烧系统动态数学模型和汽水系统动态数学模型。在燃烧系统的建模过程中,本文采用了小室法,将循环流化床锅炉沿着炉膛方向分为密相区和稀相区,分别对两个部分进行氧气浓度、总床料量、残碳量以及总能量和颗粒...CFB boiler is a complex system for its multivariable, time-varying and nonlinear characteristics, thereof the close loop control and online optimization of its combustion process are considered as an extremely challenging problem that till now previous work in the area has had limited success. In this work, a dynamic model is put forward thereby to study the operating characteristics of CFB boiler...学位:工学硕士院系专业:化学化工学院化学工程系_化学工程学号:20023300