CFBB床温LMPC-PID控制  

Application of LMPC-PID Algorithm in Bed Temperature Control of CFBB

作　　者：郭伟 乔东东[2] 李涛[1,2] 李明家 GUO Wei;QIAO Dong-dong;LI Tao;LI Ming-jia(Jiangsu Collaborative Innovation Center on Atmospheric Environment and Equipment Technology,Nanjing 210044,China;School of Automation,Nanjing University of Information Science and Technology,Nanjing 210044,China)

机构地区：[1]江苏省大气环境与装备技术协同创新中心,江苏南京210044 [2]南京信息工程大学自动化学院,江苏南京210044

出　　处：《控制工程》2019年第9期1648-1654,共7页Control Engineering of China

基　　金：国家自然科学基金(61573189);江苏省高等学校大学生创新创业训练计划(重点项目)(201610300026)

摘　　要：针对循环流化床锅炉(Circulating Fluidized Bed Boilers,CFBB)床温被控对象的大惯性、时变性、干扰因素多等特点,提出一种基于Laguerre函数模型的PID预测控制算法(LMPC-PID)。该算法在基于Laguerre函数模型的预测控制算法的基础上,将滚动优化的指标改成PID型结构,结合PID控制与预测控制的优点,提高了控制系统的快速性、稳定性和鲁棒性。通过对循环流化床锅炉床温的被控对象进行仿真研究,结果表明该算法具有良好的控制品质。To deal with the features of bed temperature control of circulating fluidized bed boilers,such as large inertia,time-variant,multi-interference factors,a PID predictive control algorithm based on Laguerre function model is proposed.In this algorithm it changes the rolling optimization index of the predictive control algorithm based on Laguerre function model into a PID type structure.Combining the advantages of PID control and predictive control,this algorithm improves the speed,stability and robustness of the control system.The algorithm is applied to bed temperature control of circulating fluidized bed boilers,the simulation results show that it has good control quality.

关 键 词：床温控制 预测控制 Laguerre模型 PID控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TK229.66[自动化与计算机技术—控制科学与工程]