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- Title
基于非线性模糊逻辑 PID 的圆盘制曲机控温控湿 系统的研究.
- Authors
何辉; 吴卫良; 钟任强; 宋 健; 张智宏; 胡 锋; 高献礼
- Abstract
In view of the problem that it is difficult to establish an accurate mathematical model for the temperature control of the disc koji making machine, an intelligent PID algorithm and temperature and humidity control system of the disc koji making machine based on nonlinear fuzzy logic operation optimization was designed. Through the double closed-loop feedback PID control of material temperature and air temperature, the material temperature deviation dynamically corrected the target air temperature, realized the balance between material temperature and air temperature, and avoided the influence of ambient temperature and system time-varying uncertain factors. The test results show that the intelligent PID algorithm improved the control precision of the disc koji making machine. The sensory quality and enzyme activities of protease (10.74%-28.85%), α-amylase (12.83%-21.43%) and glucoamylase (9.79%-15.14%) of the produced Daqu were all significantly improved. The research is of great significance for improving the temperature control accuracy of the disc koji making machine.
- Subjects
HUMIDITY control; TEMPERATURE control; ATMOSPHERIC temperature; FUZZY logic; GLUCOAMYLASE; MAXIMUM power point trackers
- Publication
Packaging & Food Machinery, 2023, Vol 41, Issue 3, p82
- ISSN
1005-1295
- Publication type
Article
- DOI
10.3969/j.issn.1005-1295.2023.03.014