脲醛树脂胶黏剂生产过程智能控制系统的研制

Development of Intelligent Control System for Production Process of Urea-formaldehyde Resin Adhesive

脲醛树脂胶黏剂的制备过程具有时变性、非线性、滞后性等特点,并且它的数学模型和参数难以确定。针对传统的PID控制很难满足生产工艺对温度、时间等指标的控制要求,造成系统不稳定,控制效果不佳,产品质量很难保证等问题。采用先进的模糊控制与常规的PID控制相结合的控制方法,研制出脲醛树脂胶黏剂生产过程智能控制系统。经模拟仿真实验及生产实践应用结果表明:该系统具有稳态精度高、响应速度快、超调量小等优点。

The Process of preparing urea-formaldehyde resin adhesive has the characteristics of time-varying,non-linearity and hyster-esis,whose mathematical models and parameters are difficult to determine.The traditional PID control is difficult to meet the require-ments of temperature ,time and other indicators for production process ,which result in a series of problems of system instability ,inef-fective control,product quality difficult to guarantee and so on.In this paper,an intelligent control system for production process of u-rea-formaldehyde resin adhesive was developed by using a composite control method which combines fuzzy control with conventional PID control.By the simulation experiment and application in productive practice ,the results show that the system has the advantages of high steady-state accuracy ,fast response ,small overshoot and so on.