纺织学报 ›› 2013, Vol. 34 ›› Issue (3): 121-126.

• 机械与器材 • 上一篇    下一篇

动态变结构控制策略在经编机高速电子横移中的应用

张琦 蒋高明 夏风林 刘苏 汤鲲鹏   

  1. 江南大学经编技术教育部工程研究中心
  • 收稿日期:2012-02-13 修回日期:2012-08-15 出版日期:2013-03-15 发布日期:2013-03-07
  • 通讯作者: 蒋高明 E-mail:jiang@526.cn
  • 基金资助:

    中国纺织工业协会科技指导性项目;江南大学自主科研计划资助

Research on dynamic variable structure control strategy for high-speed electronic shogging motion on warp knitting machine

  • Received:2012-02-13 Revised:2012-08-15 Online:2013-03-15 Published:2013-03-07

摘要: 基于位置控制的伺服系统定位精度高但动作响应慢,基于速度控制的伺服系统响应性能好但易产生位置超调定位精度差。针对采用单一控制结构难以满足经编机高速电子横移高精度和高响应双重控制要求的问题,本文提出一种变结构控制策略,即根据当前的主轴转速和垫纱数码,利用速度控制的高频响应特性启动梳栉,利用位置控制的高精度定位特性停止梳栉,将速度控制和位置控制实时组合到一次横移运动中予以动态切换,用远离槽针处电机速度的快速调整获取后续较短的定位整定时间,用动态的变结构控制来保证系统对快速响应和精确定位的同步要求。通过在DSP系统上编写算法进行测试验证,该动态变结构控制策略能很好地改善经编机高速电子横移的控制效果。

关键词: 经编机, 电子横移, 位置控制, 速度控制, 变结构控制

Abstract: Based on the position control servo system of higher precision but action response is slow, based on the speed control servo system response performance is good but easy to produce position overshoot positioning accuracy is poor. According to the single control structure is difficult to meet the requirements of high speed and high precision electronic shogging control on warp knitting machine, this paper proposes a kind of variable structure control strategy, that is, according to the produce speed and shogging number, making use of high frequency speed control response characteristics to start comb, and position control of high precision positioning properties to stop comb, combining and switching the speed control and position control real-time in one shogging movement, and, exchanging the quick adjustment of motor speed Far from slot needle for subsequent short position setting time, the dynamic real-time variable structure control can ensure a system for the rapid response and precise positioning synchronous. Through written validation test algorithm in DSP system, the dynamic variable structure control strategy can well improve the control performance of high-speed electronic shogging on warp knitting machine.

Key words: warp knitting machine, electrical shogging, position control, speed control, variable structure control

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