基于观测器的两电机卷绕系统张力控制

Tension Control Method Based on Observer for Two Motor-driven Winding System

在卷绕系统中,需要精确的控制张力,以两电机卷绕系统中收卷和放卷电机为研究对象,提出了一种基于张力观测器的闭环控制方法。首先,通过对张力控制系统各个组成部分的详细分析,找出了影响张力的关键参数;然后,根据卷绕电机的转矩平衡原理,设计了一种张力状态观测器对系统张力进行观测,构成了无传感器张力闭环控制。该方法减小了张力传感器带来的延迟,解决了一些特殊场合下张力传感器无法安装的问题,简单易行。最后,实验结果证明了所提出方案的可行性和有效性。

In winding system,it is very important to control the tension precisely.Based on the process of rewinding and unwinding,a tension closed-loop control method was proposed.First,through detailed analysis of the various components of tension control strategy,the key parameters that affect the tension were found out.Then,according to the principle of torque balance,a tension observer was designed to obtain the tension,which constituted a sensorless tension closed-loop control.The measurement delay caused by tension sensor was decreased,and the problem that the tension sensor can not be installed in some special occasions was solved.In addition,the proposed sensorless tension control method is simple,and easy to implement.At last,the feasibility and effectiveness of the proposed method are verified by the experimental results.