基于模糊策略的模拟移动床控制方法研究  

Research on Multi-Objective Control Method for Simulated Moving Bed Based on Fuzzy Strategy

作　　者：李凌 鲁洁 LI Ling;LU Jie(School of Information Engineering,Shenyang University of Chemical Technology,Shenyang 110142)

机构地区：[1]沈阳化工大学信息工程学院,辽宁沈阳110142

出　　处：《制造业自动化》2025年第3期25-32,共8页Manufacturing Automation

基　　金：国家自然科学基金(60874057)。

摘　　要：模拟移动床色谱分离过程具有强耦合、非线性、周期性等特性,该分离过程的控制一直是复杂且具有挑战性的问题。采用I型模糊控制策略和II型模糊控制策略方法,对模拟移动床分离过程中A、B组分的纯度和回收率进行控制,并与常规模糊控制进行对比。研究结果表明,Ⅰ型模糊控制策略和Ⅱ型模糊控制策略均能达到多目标的预期控制效果,相比之下,Ⅱ型模糊控制策略在回收率控制方面表现出更高的精度。通过仿真实验还研究了当切换时间和孔隙率等参数改变时,两种控制器的鲁棒性,以及施加扰动的情况下,两种控制器的抗干扰能力。实验结果表明,Ⅱ型模糊控制策略具有良好控制效果,可以进一步提高SMB系统在不稳定环境下的可靠性。The simulated moving bed chromatography separation process exhibits characteristics such as strong coupling,nonlinearity and periodicity.The control of this separation process has always been a complex and challenging issue.In this study,Type I fuzzy control strategy and Type II fuzzy control strategy methods are employed to control the purity and recovery rates of components A and B in the simulated moving bed separation process,and comparisons are made with conventional fuzzy control.The research results indicate that both Type I fuzzy control strategy and Type II fuzzy control strategy can achieve the expected control effects for multiple objectives.In comparison,Type II fuzzy control strategy demonstrates higher precision in recovery rate control.Through simulation experiments,the robustness of the two controllers is studied when parameters such as switching time and porosity change,as well as the disturbance resistance of the two controllers under the application of disturbances.Experimental results show that Type II fuzzy control strategy has good control performance,further improving the reliability of the SMB system in unstable environments.

关 键 词：模拟移动床 多目标 Ⅰ型模糊控制策略 Ⅱ型模糊控制策略 

分 类 号：TQ028[化学工程] TP273.4[自动化与计算机技术—检测技术与自动化装置]