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

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

丰富^{1, 2,},
胡海林^{1, 3, ,},
钟德鸣^{1, 2},
杨杰^{1, 2}

1.
江西理工大学电气工程与自动化学院，江西赣州 341000
2.
江西理工大学江西省磁悬浮技术重点实验室，江西赣州 34100
3.
磁浮技术铁路行业重点实验室，上海 710072

基金项目: 国家重点研发计划（2023YFB4302100）；江西省重大科技研发专项（20232ACE01011）

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
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- 被引次数: 0
出版历程
- 收稿日期: 2023-09-30
- 修回日期: 2024-04-05
- 网络出版日期: 2024-05-11
- 刊出日期: 2024-04-17

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

FENG Fu^{1, 2
,},
HU Hailin^{1, 3
, ,},
ZHONG Deming^{1, 2},
YANG Jie^{1, 2}

1.
School of Electrical Engineering and Automation, Jiangxi University of Science and Technology, Ganzhou 341000, China
2.
Key Laboratory of Maglev Technology of Jiangxi Province, Jiangxi University of Science and Technology, Ganzhou 341000, China
3.
Key Laboratory of Railway Industry of Maglev Technology, Shanghai 710072, China

摘要

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.
- 直线感应电机 /
- 全阶观测器 /
- 参数辨识 /
- 极点配置
Abstract:
Due to the special structure and dynamic end effect of linear induction motors, the change mechanism and law of their excitation inductance and secondary loss resistance are complicated. In order to improve the identification accuracy and performance of the observer for excitation inductance and secondary loss resistance, an online dual-parameter identification method of linear induction motors based on an improved interconnected full-order observer was proposed. Firstly, based on the T-type equivalent circuit of the linear induction motor considering dynamic end effects, the state space equations with dual-parameter changes were established, and the influence of parameter changes and coupling characteristics on motor poles was analyzed. Secondly, to reduce the impact of parameter coupling on identification accuracy, a low-coupling identification model with dual-parameter interconnection was established, and an interconnected full-order adaptive observer was designed. The adaptive laws for online identification of excitation inductance and secondary resistance were derived using Popov hyperstability theory, realizing online dual-parameter identification. Then, to improve the stability and convergence speed of the observer, a feedback gain matrix was derived and designed by using a novel pole configuration method. Finally, a simulation model and hardware-in-the-loop identification model were built for experimental verification. The results show that the new full-order adaptive observer achieves excitation inductance and loss resistance identification errors of around 0.01% during the startup acceleration phase and around 0.03% during dynamic loading.
- linear induction motor /
- full-order observer /
- parameter identification /
- pole configuration

HTML全文

图 1 LIM等效电路

Figure 1. Equivalent circuit of linear induction motor

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图 2 参数变化对LIM极点的影响

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

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图 3 互联型全阶自适应观测器

Figure 3. Interconnected full-order adaptive observer

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图 4 互联型全阶自适应观测器结构

Figure 4. Structure of interconnected full-order adaptive observer

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图 5 极点配置方法

Figure 5. Pole configuration method

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

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

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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

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图 8 HIL试验平台

Figure 8. Hardware-in-loop test platform

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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

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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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