摘要
碳纤维作为一种基础性原材料被广泛应用于航空航天、新能源汽车等高尖端领域。为实现CANbus网络环境下碳纤维角联织机的经纱恒张力控制,提升碳纤维织物性能,提出了一种H_(∞)网络化经纱张力控制策略。首先,进行了织机分区域的动力学分析,深入研究了基于Kelvin模型的经纱张力动态模型建立;其次,在建立双向通道数据丢包和网络时延依赖的网络化模型基础上,给出了闭环系统均方指数稳定及H_(∞)稳定的充分条件,并用Lyapunov泛函、锥补线性化迭代(cone complementary linearisation, CCL)算法,给出了带有观测器的最优H_(∞)控制器的设计步骤;最终,仿真表明所提出的控制器可有效地提高经纱张力控制系统对网络因素及开口扰动的鲁棒性。
As a basic raw material,carbon fiber is widely used in aerospace,new energy vehicles and other high-end fields.To realize the constant tension control of carbon fiber diagonal loom under CANbus and improve the performance of carbon fiber fabric,an H_(∞)networked tension control strategy was proposed.Firstly,the variation law of tension in different regions of loom system was analyzed,and the dynamic mathematical model of warp tension based on Kelvin model was studied.The tension networked control model of bidirectional channel was established,which was dependent on packet dropouts and time-delay.Furthermore,by using Lyapunov function and linear matrix inequality(LMI)method,the H_(∞)performance was analyzed.Then,the design steps of optimal observer-based H_(∞)controller were given.The gain matrices of the controller and observer were solved by cone complementary linearisation(CCL)algorithm.Finally,the simulation results show that the proposed controller can effectively improve the robustness of warp tension control system to network factors and shedding disturbances.
作者
夏鹏飞
刘薇
XIA Peng-fei;LIU Wei(Mechanical and Engineering College,Tiangong University,Tianjin 300380,China;Advanced mechatronics Equipment Technology Tianjin Area Major Laboratory,Tiangong University,Tianjin 300380,China)
出处
《科学技术与工程》
北大核心
2022年第20期8771-8780,共10页
Science Technology and Engineering
基金
天津市自然科学基金(17JCYBJC19400)。
