基于双模糊PID的枕式包装机材料供送速度控制方法

目的 为提升材料供送速度控制的精准性和稳定性、缩短速度调整时间,研究基于双模糊PID的枕式包装机材料供送速度控制方法.方法 首先利用模糊化处理控制器内的速度输入信号,形成模糊语言集;然后利用加权平均判决法反模糊化处理模糊语言集,形成可识别数值;在此基础上,采用模糊控制自适应调整PID控制参数,结合模糊控制过程的适应性和PID控制的精准性,形成双模糊PID控制方法对可识别数值进行控制,从而提升材料供送速度控制过程的精准性和稳定性.结果 实验发现,该方法的平均速度控制偏差为1.17 mm,可有效实现对速度的精准控制,且环境噪声干扰对速度控制精度的影响较小.结论 在包装速度不同的情况下,控制调整时间较短且稳定性强.实验结果证明该方法具有较强的有效性.

Control Method of Material Supply Speed of Pillow Packing Machine Based on Double Fuzzy PID

In order to improve the accuracy and stability of the material feeding speed control and shorten the adjustment time of the speed, this paper studies the material feeding speed control method of pillow packing machine based on the double fuzzy PID. Firstly, the speed input signal in the controller is used to form the fuzzy language set. Then the weighted average decision method is used to reverse the fuzzy processing of fuzzy language sets to form identifiable values. On this basis, the fuzzy control adaptive adjustment of PID control parameters, combined with the adaptability of the fuzzy control process and the accuracy of PID control, the formation of a double fuzzy PID control method to control the identifiable numerical values, so as to improve the accuracy and stability of the material feeding speed control process. The experimental results show that the average speed control deviation of this method is 1.17 mm, which can effectively realize the accurate control of speed, and the influence of environmental noise on the accuracy of speed control is small. In the case of different packing speed, the control adjustment time is shorter and the stability is stronger. Experimental results show that this method is effective.