本文針對(duì)啤酒發(fā)酵過程具有時(shí)變、大慣性、時(shí)滯和非線性的特點(diǎn)，提出了啤酒發(fā)酵溫度
的自動(dòng)控制模型。模型采用了基于操作經(jīng)驗(yàn)、基于過程模糊模型和基于學(xué)習(xí)的自整定模糊PID 控制算法，并帶有模糊模型辨識(shí)和史密斯預(yù)估補(bǔ)償算法。該控制算法在基于Profibus-DP的分布式計(jì)算機(jī)控制系統(tǒng)上實(shí)現(xiàn)并在遼寧撫順天湖啤酒有限公司投入使用，取得非常理想的控制效果和經(jīng)濟(jì)效益。
關(guān)鍵詞：啤酒發(fā)酵 專家知識(shí) 模糊控制 可編程序邏輯控制器
Abstract: An auto-control model is presented to the process of beer fermentation, which has the characteristics such as time-varying, inertia, time-delay and nonlinear. In the model, the control adopts self-tuning fuzzy PID control arithmetic which is based on operation experience, process fuzzy model and study, and appends with fuzzy model identification and Smith pre-estimated compensation arithmetic. The control model proposed in this paper is implemented on the control system which is combined with programmable logic controller and based on Profibus-DP distributed I/O station ET200M, and is applied in Tianhu beer Limited company in Fushun, Liaoning, and also obtains perfect control effect and economic benefits.
Key words: Beer Fermentation, Expert Knowledge, Fuzzy Control, PLC