一种改进的S型曲线花式纺纱机调速方法  

Study on speed control regulation of S-shaped curved fancy spinning frame

作　　者：朱耀麟[1,2] 孙博文 任学勤 武桐[1] 李文雅 ZHU Yaolin;SUN Bowen;REN Xueqin;WU Tong;LI Wenya(School of Electronics and Information,Xi′an Polytecnic University,Xi′an,Shaanxi 710600,China;School of Electronics and Information,Northwestern Polytechnical University,Xi′an,Shaanxi,710129,China;School of Textile Science and Engineering,Xi′an Polytechnic University,Xi′an,Shaanxi,710048,China)

机构地区：[1]西安工程大学电子信息学院,陕西西安710600 [2]西北工业大学电子信息学院,陕西西安710129 [3]西安工程大学纺织科学与工程学院,陕西西安710048

出　　处：《毛纺科技》2020年第6期72-76,共5页Wool Textile Journal

基　　金：陕西省教育厅服务地方科学研究计划(18JC012);陕西省科技厅重点研发计划一般项目(2019GY-098);榆林市科技局科创新城项目(2018-2-24);绍兴市柯桥区西纺纺织产业创新研究院项目(19KQYB10)。

摘　　要：针对传统纺纱机因使用直流电动机和皮带轮作为传动组合而使转子速度调节误差较大,从而导致纱线断裂、颜色不均等问题,设计了一种新型的纺纱机罗拉调速方案,以6个步进电动机代替传统纺纱机的机械结构。采用基于Sigmoid算法的S型曲线速度算法实时控制纺纱机速度,使用光电编码器测量电动机的速度,再传输给现场可编程逻辑门阵列。经仿真和板级验证,采用改进算法的各电动机在1000 ms内能够将150~400 Hz之间的任意一个频率调节至另一频率且不失步,并且控制误差范围在±3 Hz内。结果表明,该系统能够替代现有的纺纱机调速系统,有效解决现有的使用皮带轮传动纺纱机存在的断纱、颜色不均等问题,具有较好的经济价值。In order to solve the problems of yarn breakage and color inequality caused by the large adjustment error of rotor speed caused by the use of DC motor and pulley as the driving combination of traditional spinning frame,a new spinning frame production scheme was proposed.Six stepping motors were used to replace the mechanical structure of traditional spinning frame,and the s-shaped curve speed algorithm based on sigmoid algorithm was used to control their speed in real time.The speed of the motor is measured by photoelectric encoder and then transmitted to FPGA.Through simulation and board level verification,each motor using the improved algorithm can adjust to another frequency within 1000 ms at any frequency between 150-400 Hz without losing step and the control error range is within±3 Hz.The results show that the system can replace the existing speed control system of spinning frame,and can effectively solve the problems of yarn breakage and color inequality in the latter,which has better economic value.

关 键 词：现场可编程逻辑门阵列 步进电动机 速度调节 光电码盘 

分 类 号：TP273.3[自动化与计算机技术—检测技术与自动化装置] TS103.279[自动化与计算机技术—控制科学与工程]