摘要
由于薄膜分切机控制系统具有非线性、时变性等问题,若采用常规PID控制,在薄膜分切机系统动态特性发生变化时不能及时调整PID参数,难以达到理想的控制性能。对薄膜分切机放、收卷结构进行了分析,总结其张力非线性变化的原因。设计了一种模糊PID控制器,在线自动调整控制参数,对变化的张力进行补偿,从而达到薄膜分切机放卷和收卷恒张力控制,并通过Simulink仿真验证了控制结果的优化。
Since the control system of the film slitter has nonlinearity and time-varying problems,if the conventional PID control is adopted,the PID parameters cannot be adjusted in time when the dynamic characteristics of the film slitter system change,and it is difficult to achieve the ideal control performance.This paper analyzes the unwinding and winding structure of the film slitter and summarizes the reasons for the non-linear change of its tension.A fuzzy PID controller is designed to automatically adjust the control parameters online to compensate for the changing tension,so as to achieve the constant tension control of the film slitter unwinding and winding.Simulink simulation verifies the optimization of control results.
作者
刘立军
李翔龙
LIU Li-jun;LI Xiang-long(School of Mechanical Engineering,Sichuan University,Chengdu 610065,China)
出处
《机械工程与自动化》
2020年第6期13-15,18,共4页
Mechanical Engineering & Automation
基金
科技部创新方法工作专项(2017IM010700)。
