高速磁悬浮驱动方式下新型织针PID控制设计  

PID Control and Design of New Knitting Needle Driven by High Speed Magnetic Levitation

作　　者：朱里[1] 吴晓光[1] 

机构地区：[1]武汉纺织大学机械工程与自动化学院,湖北武汉430073

出　　处：《针织工业》2015年第5期18-21,共4页Knitting Industries

基　　金：国家自然科学基金(51175384);湖北省自然科学基金(2011CDB216);湖北省自然科学基金重点项目(2014CFA099)

摘　　要：基于磁悬浮机理,根据以往提出的新型驱动提花圆机织针的磁悬浮理论及模型,探讨针织提花机的磁悬浮PID控制模型机理,建立高速运动下编织织针的运动模型。针对高速模型下的不稳定成圈和集圈动作,实现离散自适应反馈补偿并建立移植模型,整个系统利用Matlab分析织针控制和驱动方式,获得提花圆机织针运动仿真效果。仿真试验结果表明,利用离散PID控制方案,系统具有较好的动态性能,可满足高速运动模型下磁悬浮式提花机织针驱动方式的要求,实现织针稳定成圈和集圈编织功能。Based on the magnetic levitation theory, the paper discusses the control model mechanism of mag-netic PID of jacquard knitting machine, according to theory and model of new knitting needle of jacquard circular machine driven by magnetic levitation proposed by our group previously, and establishes the motion model of knit-ting needle at high speed. In terms of the problem of unstable loop forming and tuck knitting process in high speed model, the model can realize adaptive feedback compensation. The whole system uses Matlab software to analyze the knitting needle control and driving method, and also obtains the simulation effect of jacquard circular knitting machine motion. The results show that the system with discrete PID control scheme has good dynamic performance, and can meet the demand of magnetic suspension driving jacquard needle for high speed motion model, which can realize the stable loop forming and tuck knitting.

关 键 词：提花圆机 磁悬浮 织针 PID控制 MATLAB仿真 离散控制 

分 类 号：TS183.7[轻工技术与工程—纺织材料与纺织品设计]