一类综合型的渗碳模糊控制系统

渗碳过程是一种大滞后、强干扰、多变量、不确定的复杂生产过程，难于建立精确的数学模型，采用传统的控制方法加人工经验无法得到满意的控制效果。本文针对某厂的料盘推送式无罐连续渗碳生产线的特点，设计了一类综合性渗碳模糊控制系统，分别设计了模糊PI控制器和混合型PID模糊控制器。大理的仿真实验证实其控制效果明显优于常规PID控制器，鲁棒性很强。从而有助于提高渗碳处理的质量，获得稳定的渗碳结果。

A Kind of Synthetical Fuzzy Control System of Carburization

Carburization is a complex manufacturing process with serious disturbance and time delay,which is multi-variable and uncertain.It is difficult to set up an exact mathematic model.Moreover,by means of conventional control methods and experience,satisfying control result can't be obtained.In this paper,according to the characteristic of controlled-object,Fuzzy control method has been chosen to design a Fuzzy-PI controller and a mixed-PID Fuzzy controller.The result of simulation shows that the robust performance and control result of the new Fuzzy controllers is better than the conventional PID controller.The overshoot is smaller.It is helpful to improve the quality of carburizing workpieces.