基于模型预测控制的480 t/h循环流化床锅炉先进过程控制技术的应用  

Application of Advanced Proless Control Technology for 480 t/h Circulating Fluidized Bed Boiler Based on Model Predictive Control

作　　者：张鹏军 郑宏锋 王开禹 訾旭华 解利军 段锋 ZHANG Pengjun;ZHENG Hongfeng;WANG Kaiyu;ZI Xuhua;XIE Lijun;DUAN Feng(Inner Mongolia Yitai Coal Co.,Ltd.,Ordos,Inner Mongolia 017000,China;Inner Mongolia Yitai Coal Based New Materials Research Institute Co.,Ltd.,Ordos,Inner Mongolia 017010,China;Beijing Branch of Shanghai Foxboro Co.,Ltd.,Beijing 100102,China;Inner Mongolia Yitai Chemical Co.,Ltd.,Ordos,Inner Mongolia 017400,China)

机构地区：[1]内蒙古伊泰煤炭股份有限公司,内蒙古鄂尔多斯017000 [2]内蒙古伊泰煤基新材料研究院有限公司,内蒙古鄂尔多斯017010 [3]上海福克斯波罗有限公司北京分公司,北京100102 [4]内蒙古伊泰化工有限责任公司,内蒙古鄂尔多斯017400

出　　处：《自动化应用》2024年第15期114-118,122,共6页Automation Application

基　　金：受鄂尔多斯高新区“科技兴蒙”行动重点专项资助(2020XM02)。

摘　　要：循环流化床(CFB)锅炉因其燃烧适应好、燃烧效率高、负荷调节范围广、燃烧污染物排放量低等优点而被广泛应用。但由于循环流化床锅炉非线性、强耦合和大滞后严重,常规PID控制很难实现高效稳定的控制。针对循环流化床锅炉控制的复杂性,引入模型预测先进控制技术,基于ARX模型与FIR模型,通过多变量控制矩阵模型实时对循环流化床锅炉状态进行动态预测和优化控制。经验证,该技术提高了装置的运行稳定性及锅炉的平均燃烧效率,使单位煤高压蒸汽产出率提升了0.6%,节约了能源消耗,减少了CO_(2)的排放。Circulating fluidized bed(CFB)boiler is widely used because of its advantages of good combustion adaptation,high combustion efficiency,wide range of load regulation and low emission of combustion pollutants.However,due to the nonlinear,strong coupling and large hysteresis of CFB boilers,it is difficult to achieve efficient and stable control with conventional PID control.In view of the complexity of CFB boiler control,the advanced control technology of model prediction is introduced.Based on ARX model and FIR model,the status of CFB boiler is dynamically predicted and optimized by multi-variable control matrix model.Through verification,this technology has improved the operational stability of the device and the average combustion efficiency of the boiler,resulting in a 0.6%increase in the production rate of high-pressure steam per unit of coal,saving energy consumption and reducing CO_(2) emissions.

关 键 词：循环流化床锅炉 APC先进控制 ARX模型 FIR模型 多变量模型预测控制 节能减排 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]