基于PLC的绕线系统控制方法研究

针对传统绕线机存在张力控制稳定性差问题,对收线主轴运用了矢量控制,并详细地分析了设定的速度值和给定变频器频率之间的关系.利用配重模块,将压力值转换为位移量,在稳定运行的基础上,结合实时反馈位移量,利用PID和bang-bang结合的方式设计了放线跟随控制系统,并对调试过程中PID的校准方法进行了分析.经实验验证,结果表明,随着系统运行中放线线轮和收线线轮直径比的不断变化,PID与bang-bang结合的控制方法的控制效果优于仅PID控制时的控制效果.

Research on Control Strategy of Winding System Based on PLC

Since it is difficult to control the tension on the traditional wire-winding machine,a new vector control method on taking-up main shaft is introduced to make the system stable.The relationship between the set speed and the given frequency of converter is analyzed detailed.A counterweight is used to displace the pressure.The paying-off motor tracking system is designed by PID and bang-bang methods,and the calibration method of PID in the debugging process is analyzed.The experimental results indicate that the control effect of PID combined with bang-bang is better than PID control with the wire wheel diameter ratio changing.