织针磁悬浮控制系统中的加速反馈算法研究  

Research on Knitting Needle Acceleration Feedback Algorithm in the Magnetic Suspension Control System

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3期13-16,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重点项目(2014CFA099);湖北省自然科学基金(2011CDB216)

摘　　要：结合针织提花工艺,开展悬浮式驱动织针理论及织针运动特性研究,实现电脑提花针织装备电磁选针控制。研究在狭小空间内电磁-永磁磁场对织针运动特性的影响,设计了一种基于加速度性能改进选针装置的控制算法,将织针轨迹的输出直接引入反馈控制,使悬浮控制系统在不同加速曲线段上有精确的表达式;利用离散微分器,从间隙信号中提取微分算子,使实际控制算法得以实现。为针织提花装备提供理论基础及质量稳定可靠的通用选针器。Combined with jacquard knitting equipment technology, the paper studies suspension driving dynamic characteristics and theory, and realizes realizing computer jacquard knitting equipment electric magnetic needle con-trol. It also studies the dynamic characteristics of a knitting needle in the narrow-spaced electromagnetic and per-manent magnet field, designs a control algorithm based on acceleration performance improved needle selection de-vice, introduces the knitting needle tracks to the output of the direct feedback control, and makes the suspension control system under different acceleration curve segment have accurate expression; Using discrete differentiator, signal extracted from the clearance differential operator, the practical control algorithm is implemented. The result will provide the theoretical foundation for the knitting jacquard equipment, and quality of general needle selection is stable and reliable.

关 键 词：磁悬浮驱动 选针装置 加速反馈算法 控制系统 

分 类 号：TS181.8[轻工技术与工程—纺织材料与纺织品设计]