An Optimized Feedforward Decoupling PD Register Control Method of Roll-to-Roll Web Printing Systems
An Optimized Feedforward Decoupling PD Register Control Method of Roll-to-Roll Web Printing Systems
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DOI：
10.1109/tase.2015.2489687
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发表时间：
2016
影响因子：
5.6
通讯作者：
Zhihua Chen;Juan-juan He;Ying Zheng;Tao Song;Zhonghua Deng
中科院分区：
文献类型：
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作者：
Zhihua Chen;Juan-juan He;Ying Zheng;Tao Song;Zhonghua Deng
卷对卷（R2 R）印刷提供连续印刷工艺以将图案印刷到柔性条材料上。将材料上的连续印刷图案对准以形成重叠图案的过程称为印刷配准，并且配准误差是两个相邻重叠图案之间的位置未对准。在以往的研究中，很多工作主要集中在动态模型分析和套色精度方面，而很少考虑控制信号的波动性对驱动电机的影响。在这项工作中，一个优化的前馈解耦PD套准控制方法，以产生优化的控制信号，而不会损失的印刷配准的准确性，其中一个新的膜算法的启发，通过提供生化对象的通信细胞的生物功能被开发来搜索最佳的补偿控制信号，而不是精确的补偿控制信号。仿真结果和在7轴凹版印刷机上的工业实践表明，该方法可以在保证印刷套准精度的前提下，显著降低控制信号的1-范数和2-范数。该方法为R2 R网络系统中平滑控制信号、减小对驱动电机的冲击提供了一种可行的方法。
Roll-to-roll (R2R) printing provides a continuous printing process to print the multicolor patterns onto the flexible strip materials. The process of aligning successive print patterns on the material to form a multicolor pattern is called print registration and the registration error is the position misalignment between the two adjacent overlapped patterns. In previous studies, many works focused mainly on the dynamic model analysis and the accuracy of print registration, but few of them took the volatility of control signal into consideration, which may cause the great impact to drive motors. In this work, an optimized feedforward decoupling PD register control method is derived to generate optimized control signal without the loss of accuracy of print registration, where a novel membrane algorithm inspired by the biological functioning of cells communicating by means of delivering biochemical objects is developed to search the optimal compensation control signal instead of the exact compensation control signal. Results obtained from the simulations and industrial practice on a 7-axis rotogravure printing press show that our method can significantly decrease the 1-norm and 2-norm of control signal without losing the accuracy of print registration. The proposed method may provide a feasible way to smooth the control signal and decrease the impact to drive motors in R2R web systems.