基于自适应模糊PID的注塑机温度控制及仿真  

Control and Simulation of Temperature for Injection Molding Machines Based on Self-adaptive Fuzzy PID Control Method

作　　者：张鹏飞[1] 党开放[1] 张亚军[1] 黄矫燕[1] 

机构地区：[1]北京化工大学机电工程学院,北京100029

出　　处：《中国塑料》2013年第4期85-89,共5页China Plastics

摘　　要：为了对注塑机温度精确控制,针对注塑机温度在传统比例积分微分(PID)控制系统中存在的控制偏差大、调节速度慢等诸多不足的现状,提出将模糊控制器和PID控制器相结合,构造成一个自适应模糊PID控制器,运用MATLAB软件建立传统PID和自适应模糊PID控制器模型,对机筒温度进行仿真对比。设定200℃为给定温度,最终仿真结果显示,与传统PID控制器相比,自适应模糊PID控制器实现了注塑机温度的实时控制,达到了超调量小,升温快速及稳态无误差等要求。表明了自适应模糊PID控制器比传统PID控制器对温度的控制效果更加良好。There were many shortages in the traditional PID control systems for injection molding machines, such as great control deviation, slow rate of regulation, etc. In order to control the temperature accurately, a self-adaptive fuzzy control method was proposed in this work, which combines fuzzy control and PID control method. The traditional PID control model and self- adaptive fuzzy PID control model were established by MATLAB software; the temperature of cylinders was simulated and compared. The temperature was set at 200 ~C. The result of simulation indicated that the self-adaption fuzzy PID controller had realized the real-time temperature control of injection molding machines and met the requirements of smaller overshoot, quick temperature rising and no steady-state error, which compared with traditional PID controller. Above-mentioned results illustrated that the temperature control effectiveness of the self-adaptation fuzzy PID controller was better than the traditional PID controller.

关 键 词：自适应模糊比例积分微分 温度控制 仿真 

分 类 号：TP273.4[自动化与计算机技术—检测技术与自动化装置] TQ320.5[自动化与计算机技术—控制科学与工程]