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电火花加工用磁力驱动器的微定位控制

徐程程 徐方超 孙凤 张晓友 金俊杰 栾博然

徐程程, 徐方超, 孙凤, 张晓友, 金俊杰, 栾博然. 电火花加工用磁力驱动器的微定位控制[J]. 西南交通大学学报, 2022, 57(3): 610-617. doi: 10.3969/j.issn.0258-2724.20210987
引用本文: 徐程程, 徐方超, 孙凤, 张晓友, 金俊杰, 栾博然. 电火花加工用磁力驱动器的微定位控制[J]. 西南交通大学学报, 2022, 57(3): 610-617. doi: 10.3969/j.issn.0258-2724.20210987
XU Chengcheng, XU Fangchao, SUN Feng, ZHANG Xiaoyou, JIN Junjie, LUAN Boran. Micro-positioning Control of Magnetic Actuator for Electrical Discharge Machining[J]. Journal of Southwest Jiaotong University, 2022, 57(3): 610-617. doi: 10.3969/j.issn.0258-2724.20210987
Citation: XU Chengcheng, XU Fangchao, SUN Feng, ZHANG Xiaoyou, JIN Junjie, LUAN Boran. Micro-positioning Control of Magnetic Actuator for Electrical Discharge Machining[J]. Journal of Southwest Jiaotong University, 2022, 57(3): 610-617. doi: 10.3969/j.issn.0258-2724.20210987

电火花加工用磁力驱动器的微定位控制

doi: 10.3969/j.issn.0258-2724.20210987
基金项目: 国家自然科学基金(52005345,52005344);国家重点研发计划(2020YFC2006701);辽宁省教育厅科学技术研究项目(LFGD2020002);辽宁省“兴辽英才”计划(XLYC1905003);中央引导地方科技发展专项资金(2020JH6/10500048)
详细信息
    作者简介:

    徐程程(1993—),男,博士研究生,研究方向为磁悬浮肾脏泵,E-mail:xuchengcheng@smail.sut.edu.cn

    通讯作者:

    徐方超(1979—),男,讲师,研究方向为精密加工技术与装备,E-mail:xufangchao@sut.edu.cn

  • 中图分类号: TG661

Micro-positioning Control of Magnetic Actuator for Electrical Discharge Machining

  • 摘要:

    针对传统电火花加工中极间间隙的及时控制问题,提出一种具有高精度、响应快、宽频带、长行程的单自由度磁力驱动器,采用磁力驱动器作为电火花加工的局部执行机构,并设计了一种模糊PID控制方法在线实时修正PID控制参数,优化磁力驱动器控制系统. 首先, 分析了磁力驱动器装置的动力学模型,获得通入线圈电流与磁力驱动器动子位移之间的变换关系;其次, 根据磁力驱动器装置特点设计了常规PID控制器,并引入模糊控制对微定位控制性能进行优化;最后, 通过对磁力驱动器的微定位仿真和实验验证了控制器的控制效果. 仿真和实验结果表明:该磁力驱动器具有微米级的定位分辨率、大于50 Hz的宽频带和2 mm的定位行程,完全满足电火花加工微调要求.

     

  • 图 1  磁力驱动器结构

    Figure 1.  Structure of magnetic actuator

    图 2  磁力驱动器动子运动原理

    Figure 2.  Movement principle of mover in magnetic actuator

    图 3  磁力驱动器动子受力模型

    Figure 3.  Force model of mover in magnetic actuator

    图 4  磁力驱动器模糊PID控制原理

    Figure 4.  Fuzzy PID control principle for magnetic actuator

    图 5  输入、输出变量的隶属函数

    Figure 5.  Membership functions of input and output variables

    图 6  位移控制仿真曲线

    Figure 6.  Simulation curves of displacement control

    图 7  磁力驱动器位移控制实验平台

    Figure 7.  Experimental platform for displacement control of magnetic actuator

    图 8  磁力驱动器的阶跃响应

    Figure 8.  Step response of magnetic actuator

    图 9  磁力驱动器的定位分辨率

    Figure 9.  Positioning resolution of magnetic actuator

    图 10  磁力驱动器的正弦跟随曲线

    Figure 10.  Sinusoidal following curves of magnetic actuator

    图 11  磁力驱动器的频率响应曲线

    Figure 11.  Frequency response curves of magnetic actuator

    表  1  受力模型实验参数

    Table  1.   Test parameters of force model

    M/kgc/(N•s•m−1k/(×103 N•m−1Ki(/N•A−1Ff/N
    0.2705.4255.660
    下载: 导出CSV

    表  2  ΔKP的模糊控制规则

    Table  2.   Fuzzy-control rules of ΔKP

    输入语言值E
    NBNMNSZOPSPMPB
    CENBPBPBPMZOZOZONS
    NMPBPMPMZOZONSNS
    NSPMPMPSNSNSNSPM
    ZOPMPSPSNSNSNMNM
    PSPMPSPSNSNMNMNB
    PMPSPSZONMNMNBNB
    PBZOZOZONMNBNBNB
    下载: 导出CSV

    表  3  ΔKI的模糊控制规则

    Table  3.   Fuzzy-control rules of ΔKI

    输入语言值E
    NBNMNSZOPSPMPB
    CENBNBNBNMNMNSZOZO
    NMNBNMNMNSNSZOZO
    NSNMNMNSNSZOPSPS
    ZONMNSNSZOPSPSPM
    PSNMNSZOPSPMPMPB
    PMZOZOPSPMPMPBPB
    PBZOZOPSPMPBPBPB
    下载: 导出CSV

    表  4  ΔKD的模糊控制规则表

    Table  4.   Fuzzy-control rules of ΔKD

    输入语言值E
    NBNMNSZOPSPMPB
    CENBPSNSNMNBNBNBPM
    NMZONSNMNBNMNSZO
    NSZONSNMNMNMNSZO
    ZOZONSNSNMNSNSZO
    PSZOZOZOZOZOZOZO
    PMPBPMPMPSPSPMPB
    PBPBPBPMPSPSPMPB
    下载: 导出CSV
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出版历程
  • 收稿日期:  2021-11-30
  • 修回日期:  2022-03-22
  • 刊出日期:  2022-03-31

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