大范围工况热工过程系统的多模型预测控制  

Multiple model-based predictive control for the plant-wide thermal process systems

作　　者：乐艳[1] 李少远[1] 

机构地区：[1]上海交通大学自动化研究所,上海200030

出　　处：《工业仪表与自动化装置》2004年第5期31-33,36,共4页Industrial Instrumentation & Automation

基　　金：国家高新技术研究计划(863计划)资助项目(2002AA412130)

摘　　要：文中讨论了基于多模型的预测控制方法。对于在工作范围内发生参数突变的被控热工对象,在典型工况下通过实验数据获得典型工作点的系统模型,从而建立多个局部模型表示,基于每个局部模型分别设计子DMC控制器。通过跟踪工况变化来对子控制器加权以获得控制增量。实验结果表明该方法对参数突变适应快,可取得令人满意的控制效果。A predictive control method based on multiple models is presented.Regarding as the thermal process with sudden changes in the process parameters during large operating range,system models of typical operating points are formulated through the experimental data in the typical industrial instances and thus the multiple-model set established.Based on each local model of the set,a local DMC controller is designed.The appropriate control increment is obtained by weighting of the local controllers according to the real operating condition changed.The results show that this control method can rapidly adapt to the sudden changes in the process parameters and bring good control effects.

关 键 词：多模型 预测控制 动态矩阵控制 

分 类 号：TP273.2[自动化与计算机技术—检测技术与自动化装置]