基于变论域模糊-Smith的白酒勾调控制  

Liquor blending control based on variable universe fuzzy-Smith modle

作　　者：周永帅 庹先国 韩强 刘鑫 ZHOU Yong-shuai;TUO Xian-guo;HAN Qiang;LIU Xin(School of Automation and Information Engineering,School of Automation and Information Engineering,Yibin,Sichuan 644000,China;Sichuan Provincial Key Laboratory of Artificial Intelligence,Yibin,Sichuan 644000,China)

机构地区：[1]四川轻化工大学自动化与信息工程学院,四川宜宾644000 [2]人工智能四川省重点实验室,四川宜宾644000

出　　处：《食品与机械》2022年第2期203-209,共7页Food and Machinery

基　　金：四川省科技计划项目(编号:2021YFS0339);特殊环境机器人技术四川省重点实验室(编号:17kftk05);四川省重大科技专项项目(编号:2018GZDZX0045)。

摘　　要：目的:满足白酒勾调控制系统响应无超调的要求,消除系统时滞性对其控制效果的影响。方法:提出了一种基于变论域模糊-Smith的白酒勾调控制算法。对系统的控制过程及特点进行分析并建立近似的数学模型;引用Smith预估器补偿系统存在的时滞性,利用模糊控制的特点解决系统数学模型建立不精确的问题,并且结合了变论域方法来消除常规模糊控制精度不高,存在稳态误差的弊端;通过Matlab实现了该算法的仿真。结果:与PID-Smith以及模糊-Smith控制算法相比,该算法在确保系统响应无超调的前提下,具备更快的调节速度以及鲁棒性。结论:变论域模糊-Smith算法能够实现白酒勾调控制系统对流量的精确控制。Objective: Meets the requirements of no overshoot in the response of the liquor blending control system, and eliminate the influence of system time lag on its control effect. Methods: An algorithm of liquor blending control based on variable universe fuzzy-Smith was proposed. Analyzed the control process and characteristics of the system and establish an approximate mathematical model. Quoting Smith predictor to compensate for the time lag in the system, utilizing the characteristics of fuzzy control to solve the problem of inaccurate system mathematics model, combined with the variable universe method to eliminate the shortcomings of conventional fuzzy control method with steady-state errors due to the poor accuracy. The algorithm was simulated by Matlab. Results: Compared with PID-Smith and fuzzy-Smith control algorithm, on the premise of ensuring that there was no overshoot in the system response, and the proposed algorithm had faster adjustment speed and better robustness. Conclusion: The variable universe fuzzy-Smith algorithm can realize the precise control of the flow of the liquor blending control system.

关 键 词：白酒 勾调 时滞 变论域 模糊-Smith 

分 类 号：TS262.3[轻工技术与工程—发酵工程] TP273[轻工技术与工程—食品科学与工程]