循环流化床(CFB)锅炉燃烧系统是一个具有非线性、大滞后、多耦合的复杂过程,其自动控制比一般锅炉更加复杂和困难;加上一些对燃烧系统有重要影响的输入变量,如给煤煤质等,不能在线实测,导致重要的优化指标——锅炉热效率的实时计算难以实现。优化指标无法实时测算,闭环实时优化就无法实现。要研发CFB锅炉的闭环自动调优系统,首先必须解决不可(难)测输入变量的在线观测问题。基于以上原因,本文以440t/h循环流化床锅炉工业装置为研究对象,建立了基于机理模型的循环流化床锅炉的不可测输入的在线观测系统;对包括给煤含碳量及给煤挥发分含量的CFB锅炉燃煤品质进行在线观测研究。首先,在佘文武所建的220t/h循环流化...CFB boiler combustion system is a complex process for its nonlinear, large time delay and multi-variable coupling characteristics, thereof the close loop control and online optimization of its combustion process are considered as an extremely challenging problem. And the on-line computing of thermal efficiency is difficulty because of the unmeasurable inputs variables, such as coal quality; ther...学位:工学硕士院系专业:化学化工学院化学工程与生物工程系_化学工程学号:20033301