基于前馈模糊PID的收放线装置速度同步控制方法

A Feedforward Fuzzy PID-Based Speed Synchronization Control Method for Winding and Unwinding Devices

  • 摘要: 针对线缆绕包设备收放线装置中卷径、牵引速度变化及伺服执行滞后引起的速度不同步问题,提出储线轮位移反馈与牵引速度、卷径前馈相结合的速度同步控制方法。建立收放线速度同步模型,在传统PID基础上引入模糊PID,根据位移偏差及变化率在线调整参数,并利用牵引速度和卷径加入前馈控制。在MATLAB/Simulink中对三种控制方法进行收、放线对比仿真。结果表明,前馈模糊PID在收线启动阶段最大超调降低46.3%,放线牵引速度突变阶段最大下冲降低85.2%,可改善工况变化时的动态响应与恢复过程,提高收放线装置速度同步性能。

     

    Abstract: To address the speed synchronization problem caused by variations in winding radius and traction speed as well as servo actuator lag in the winding and unwinding system of cable wrapping equipment, a speed synchronization control method combining dancer-roller displacement feedback with traction-speed and winding-radius feedforward is proposed. A winding and unwinding speed synchronization model is established. Based on conventional PID control, fuzzy PID is introduced to adjust the control parameters online according to the displacement error and its rate of change, while traction speed and winding radius are incorporated into the feedforward control. Comparative simulations of three control methods under winding and unwinding conditions are carried out in MATLAB/Simulink. The results show that the feedforward fuzzy PID controller reduces the maximum overshoot by 46.3% during the winding start-up stage and the maximum undershoot by 85.2% during the traction-speed step change in the unwinding stage. The proposed method can improve the dynamic response and recovery process under varying operating conditions and enhance the speed synchronization performance of the winding and unwinding system.

     

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