甘蔗渣发酵制取乙醇温度模糊控制研究  

Temperature Control of Cell Protein Fermentation Based on PLC Control

作　　者：王雨萌 苏拾[1] 冯进良[1] 马韵琪 WANG Yumeng;SU Shi;FENG Jiniang;MA Yunqi(School of Opto-Electronic Engineering,Changchun University of Science and Technology,Changchun 130022)

机构地区：[1]长春理工大学光电工程学院,长春130022

出　　处：《长春理工大学学报（自然科学版）》2023年第6期57-64,共8页Journal of Changchun University of Science and Technology(Natural Science Edition)

基　　金：吉林省科技发展计划基金(20190302064GX)。

摘　　要：甘蔗渣发酵制取乙醇过程中温度控制通常为数字PID控制,为了达到更高的控制要求,加入模糊控制规则,构成Fuzzy-PID控制器,通过Matlab仿真对这两种控制方法的性能指标进行对比,证明了Fuzzy-PID比普通PID控制系统的上升、调节时间短,稳态误差小,提高了发酵过程的动、静态性能指标。使用STEP 7-Micro/WIN软件进行PLC的温度控制程序编程,在同等条件下使用PID和Fuzzy-PID的实验对比,折线图直观对比出Fuzzy-PID的超调量比PID控制降低35%,调节时间缩短20%,有更良好的鲁棒性,之后经反复调试系统,可知在35 s左右系统可稳定设定温度,控制效果符合工艺设计要求。In order to achieve higher control requirements,fuzzy control rules are added to constitute Fuzzy-PID controller,and the performance indicators of these two control methods are compared through Matlab simulation,which proves that Fuzzy-PID is shorter than the rise and adjustment time of ordinary PID control system,and the steady-state error is small,which improves the dynamic and static performance indicators of the fermentation process.Using STEP 7-Micro/WIN software for PLC temperature control program programming,under the same conditions to use PID and Fuzzy-PID experi-mental comparison,the line chart intuitively compared Fuzzy-PID overshoot 35%lower than PID control,adjustment time shortened by 20%has better robustness,and then after repeated debugging of the system.In about 35 s,the system can stably set the temperature,and the control effect meets the process design requirements.

关 键 词：模糊控制 PID控制 温度控制 

分 类 号：O433.4[机械工程—光学工程]