【作者】 李冬生； 方一鸣； 李建雄； 邓立广；

【Author】 LI Dong-Sheng,FANG Yi-Ming,LI Jian-Xiong,DENG Li-Guang Key Laboratory of Industrial Computer Control Engineering of Hebei Province,Yanshan University,Qinhuangdao,Hebei 066004,P.R.China

【机构】 燕山大学工业计算机控制工程河北省重点实验室；

【摘要】 水泥回转窑热工过程是一个多变量、强耦合、多时滞的不确定复杂温度系统.燃烧过程控制系统的控制性能将直接影响水泥熟料的质量,为了保证水泥熟料质量就要严格控制窑内各部分的温度.本文针对水泥回转窑温度多变量时滞耦合系统被控对象数学模型,提出了一种多变量解耦Fuzzy-Smith预估控制算法.该算法首先根据系统被控对象模型设计多变量时滞耦合系统的解耦控制器,然后利用解耦后得到的标称模型构造Smith预估控制结构,并设计了两通道Fuzzy-PI控制器.最后通过仿真实例表明,该算法具有较好的控制性能,能够实现输出间的显著解耦,且鲁棒性强.更多还原

【Abstract】 Cement rotary kiln thermal process can be viewed as an uncertain and complex temperature system with multivariable,strong coupling and time delays.The performance of combustion process control system will directly affect the quality of cement clinker,so it is necessary to control the temperature of every part in the kiln strictly in order to ensure the qualityof cement clinker.A multivariable decoupling Fuzzy-Smith predictive control algorithm is presented to the mathematical model of controlled plant of the cement rotarykiln temperature multivariable coupling system with time delays.According to the controlled plant model of system,a decoupling controller is firstly designed to the multivariable coupling system with time delays in this algorithm,then a Smith prediction control structure is formed according to the decoupled nominal model,and two-channel Fuzzy-PI controllers are developed.At last the simulation results show that this algorithm has a good control performance to achieve obvious decoupling between outputs and has a strong robustness.更多还原