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基于改进互联型全阶观测器的直线感应电机在线参数辨识

丰富 胡海林 钟德鸣 杨杰

丰富, 胡海林, 钟德鸣, 杨杰. 基于改进互联型全阶观测器的直线感应电机在线参数辨识[J]. 西南交通大学学报. doi: 10.3969/j.issn.0258-2724.20230507
引用本文: 丰富, 胡海林, 钟德鸣, 杨杰. 基于改进互联型全阶观测器的直线感应电机在线参数辨识[J]. 西南交通大学学报. doi: 10.3969/j.issn.0258-2724.20230507
FENG Fu, HU Hailin, ZHONG Deming, YANG Jie. Online Parameter Identification of Linear Induction Motors Based on Improved Interconnected Full-Order Observer[J]. Journal of Southwest Jiaotong University. doi: 10.3969/j.issn.0258-2724.20230507
Citation: FENG Fu, HU Hailin, ZHONG Deming, YANG Jie. Online Parameter Identification of Linear Induction Motors Based on Improved Interconnected Full-Order Observer[J]. Journal of Southwest Jiaotong University. doi: 10.3969/j.issn.0258-2724.20230507

基于改进互联型全阶观测器的直线感应电机在线参数辨识

doi: 10.3969/j.issn.0258-2724.20230507
基金项目: 国家自然科学基金(52262050)
详细信息
    作者简介:

    丰富(1995—),男,博士研究生,研究方向为电机控制与参数辨识,E-mail:vtopiafeng@outlook.com

    通讯作者:

    胡海林(1984—),男,副教授,博士,研究方向为磁悬浮列车牵引系统与磁悬浮控制技术等,E-mail:huhailin@jxust.edu.cn

  • 中图分类号: TM359.4

Online Parameter Identification of Linear Induction Motors Based on Improved Interconnected Full-Order Observer

  • 摘要:

    由于直线感应电机特殊结构和动态边端效应等影响,其励磁电感和次级损耗电阻的变化机理和规律复杂,为提高观测器对励磁电感和次级损耗电阻的辨识精度和性能,提出一种基于改进互联型全阶观测器的直线感应电机双参数在线辨识方法. 首先,根据考虑动态边端效应的直线感应电机T型等效电路,建立双参数变化的电机状态空间方程,并分析参数变化及耦合特性对电机极点影响;其次,为减小参数耦合对辨识精度的影响,建立双参数互联的低耦合辨识模型,完成互联型全阶自适应观测器设计,采用Popov超稳定性理论推导励磁电感和次级电阻在线辨识的自适应律,实现双参数在线辨识;然后,为提高观测器的稳定性和收敛速度,结合新型极点配置法完成反馈增益矩阵的推导与设计;最后,搭建仿真模型和硬件在环辨识模型进行实验验证. 结果表明:新型全阶自适应观测器在启动加速阶段时励磁电感和损耗电阻辨识误差在0.01%左右;在负载动态时损耗电阻辨识误差在0.03%左右.

     

  • 图 1  LIM等效电路

    Figure 1.  Equivalent circuit of linear induction motor

    图 2  参数变化对LIM极点的影响

    Figure 2.  Impact of parameter variations on poles of linear induction motor

    图 3  互联型全阶自适应观测器

    Figure 3.  Interconnected full-order adaptive observer

    图 4  互联型全阶自适应观测器结构

    Figure 4.  Structure of interconnected full-order adaptive observer

    图 5  极点配置方法

    Figure 5.  Pole configuration method

    图 6  新型观测器极点$ {{\boldsymbol{P}}_{{\mathrm{obs3}}}} $

    Figure 6.  New observer $ {{\boldsymbol{P}}_{{\mathrm{obs3}}}} $ pole

    图 7  不同增益矩阵在线辨识双参数

    Figure 7.  Online identification of two parameters with different gain matrices

    图 8  HIL试验平台

    Figure 8.  Hardware-in-loop test platform

    图 9  互联型全阶观测器双参数在线辨识波形

    Figure 9.  Waveform of online dual-parameter identification of interconnected full-order observer

    表  1  直线感应电机参数

    Table  1.   Parameters of linear induction motor

    参数 取值 参数 取值
    额定功率/W 424 互感/H 0.517
    额定速度/(m·s−1 8 初级电感/H 0.637
    初级长度/m 1.014 初级电阻/Ω 11
    极距/mm 0.205 次级电感/H 0.757
    极对数 3 次级电阻/Ω 32.571
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出版历程
  • 收稿日期:  2023-09-30
  • 录用日期:  2024-04-15
  • 修回日期:  2024-04-05
  • 网络出版日期:  2024-05-11

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