双自由度Smith预估器在啤酒发酵控制中的应用研究  

Application of two-degree-of-freedom Smith predictor in beer fermentation control

作　　者：高艳丽[1] 綦星光[1] 

机构地区：[1]山东轻工业学院电子信息与控制工程学院,山东济南250353

出　　处：《中国酿造》2009年第8期109-112,共4页China Brewing

摘　　要：针对啤酒发酵过程中所存在的大时滞、时变性等特点,运用了双自由度Smith预估器,在Matlab的Simulink环境中对系统进行了仿真。仿真结果表明:与Smith预估器比较,双自由度Smith预估器其输出更加稳定,能够获得良好的设定值跟踪特性,对模型参数的鲁棒性明显增强,提高了抗干扰能力。A model of the beer fermentation with large time - delay and time - varying was built and simulated in Simulink environment of Matlab with two - degree - of - freedom Smith predictor. The results showed that compared with Smith predictor, the application of two - degree - of - freedom Smith predictor could produce more stable output, give better performance in set-point tracking, enhance the robustness of the model parametres, and increase the capacity of resisting disturbance.

关 键 词：温度控制 SMITH预估器 双自由度Smith预估器 双控制器 

分 类 号：TS261.3[轻工技术与工程—发酵工程]