作　　者： ; ;

机构地区： 华南理工大学自动化科学与工程学院自动化与网络工程系

出　　处： 《控制工程》 2011年第6期890-892,896,共4页

摘　　要： 由于传统方型卷绕机采用恒定角速度的控制策略,使得料带线速度呈正弦曲线变化,无法实现料带的恒张力控制,引起锂电池内部张力不一致,从而导致锂电池电芯变形,影响锂电池的使用寿命。以半自动方型卷绕机为实验载体,TMS320F2812为控制器;通过剖析卷绕张力系统的结构,得到张力系统的动力学方程,找出张力与卷绕速度之间的关系;通过方形卷针的角速度辨识模型,得到恒定卷绕线速度的数学表达式。在传统张力控制系统的基础上,提出了恒定线速度、变角速度的控制策略,实现对方型锂电池卷绕机的恒定张力控制。根据Matlab仿真以及半自动卷绕机的实际运行效果,显示张力的变化明显减小,锂电池的合格率也大大提高。 To the problem that the traditional square winding machine with constant angular velocity makes the tape speed changing in sine curve and can not achieve the constant tension control, the semi-automatic square winding machine is dealt with, taking TMS320F2812 as the controller. The dynamic equations of the tension system is obtained, and the relationship between tension and winding speed is analyzed. Based on the angular identification model of square roll needle, the mathematical expression of the constant velocity is given. Based on the traditional tension control system, a constant speed and variable velocity control strategy is proposed to achieve the constant tension control of lithium battery winding machine, The Matlab simulation and the actual running results show that the passing rate of lithium battery increases significantly.

关 键 词： 方型锂电池 卷绕机 张力控制 变角速度

领　　域： [自动化与计算机技术] [自动化与计算机技术]