多模型调度Smith预估算法的湿化器管路温控方法  

Temperature Control Method of Humidifier Pipeline Based on Multi Model Scheduling Smith Prediction Algorithm

作　　者：王庆辉 康辉 WANG Qinghui;KANG Hui(School of Information Engineering,Shenyang University of Chemical Technology,Shenyang Liaoning 110021,China)

机构地区：[1]沈阳化工大学信息工程学院,辽宁沈阳110021

出　　处：《电子器件》2024年第3期705-710,共6页Chinese Journal of Electron Devices

基　　金：沈阳市重点科技研发计划项目支持(17-132-0-00)。

摘　　要：医用湿化器的管路温度控制是一个具有滞后性、大惯性且模型参数随流量变化的非线性变结构系统,难以采用单一结构的控制算法来实现高品质的动态性能控制。针对这一难题,提出基于多模型结构调度的Smith预估控制方法,该方法在流量平衡点处采用模型调度的方法进行控制器设计。实验测试证明多模型调度的史密斯预估算法适用于不同设定温度在不同流量模式下的管路温度控制,提升了控制系统的动态性能和鲁棒性。The pipeline temperature control of medical humidifier is a nonlinear variable structure system with hysteresis,large inertia and model parameters changing with flow,and it is difficult to use a single structure control algorithm to achieve high-quality dynamic control performance.Aiming at this problem,a Smith estimation control method based on multi-model structure scheduling is proposed,which adopts the model scheduling method at the flow balance point for controller design.Experimental tests prove that the Smith preestimation method of multi-model scheduling is suitable for pipeline temperature control with different set temperatures in different flow modes,which improves the dynamic performance and robustness of the control system.

关 键 词：温度控制 医用湿化器 Smith预估算法 多模型 模型调度 

分 类 号：TH772[机械工程—仪器科学与技术] TP273[机械工程—精密仪器及机械]