摘要
介绍了一种高精度温度控制的复合方法及其在制袋机上的成功应用。该方法集模糊逻辑和专家式智能 PID控制于一体 ,充分利用专家人工调节经验和 PID控制的定量调节特性 ,较好地满足了大滞后系统高精度控温与快速性要求。采用了简单新颖的 PID参数在线修正方法和变速积分方法 ,有效抑制超调 ,易于实现。运用于制袋机 ,控制精度优于0 .2 5℃。实践证明该方法在高精度控温中具有良好的控制效果。
A combined method of high precision temperature control and its application in a constant temperature bag-making machine were presented. Combining fuzzy logic with intelligent PID control of expert type, the method utilizes the expert's experience of manual manipulating and quantitative operating feature of PID control. Therefore, it could meet the precision and adjusting time requirements in high precision temperature control. Moreover, a novel and simple model to modify PID parameters and a change-speed integral method were introduced, which are easy to implement. When it is used in a bag-making machine, the control accuracy of combined method is even smaller than 0.25℃.
出处
《轻工机械》
CAS
北大核心
2004年第2期86-88,共3页
Light Industry Machinery
关键词
高精度控制
温度控制
制袋机
PID控制
模糊逻辑
塑料薄膜
temperature control
high precision control
intelligent control
fuzzy logic
PID control
change-speed integral
