Position Estimation Error Reduction Based on First-Order Complex-Coefficient Extended State Observer for IPMSM Sensorless Drives

IF 4.2 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Industry Applications Pub Date : 2025-01-20 DOI:10.1109/TIA.2025.3531829

Yonggang Li;Yashan Hu;Zhenghong Luo

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引用次数: 0

Abstract

The back electromotive force (BEMF) observer for interior permanent magnet synchronous machine (IPMSM) sensorless control has been widely investigated. However, the steady-state position error of the conventional observer is positively correlated with the motor running frequency. In addition, due to the non-ideal conditions, such as inverter nonlinearity and flux spatial harmonics, the conventional LESO cannot achieve high robustness to the high-order harmonics without additional filters, which leads to harmonic position estimation error. To reduce the rotor position estimation errors, a first-order complex-coefficient extended state observer (CCF-ESO) with frequency-adaptive bandpass characteristic is proposed. Compared with the conventional LESO, the proposed CCF-ESO can eliminate the steady-state position estimation error and has a smaller harmonic position estimation error due to its better high-order harmonics immunity. The effectiveness of the proposed first-order CCF-ESO is verified by comparative experiments on a 1.2 kW IPMSM drive platform.

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基于一阶复系数扩展状态观测器的IPMSM无传感器驱动器位置估计误差减小

用于室内永磁同步电机（IPMSM）无传感器控制的反向电动势（BEMF）观测器已得到广泛研究。然而，传统观测器的稳态位置误差与电机运行频率呈正相关。此外，由于逆变器非线性和磁通空间谐波等非理想条件的存在，传统的 LESO 在没有额外滤波器的情况下无法实现对高阶谐波的高鲁棒性，从而导致谐波位置估计误差。为减少转子位置估计误差，提出了一种具有频率自适应带通特性的一阶复系数扩展状态观测器（CCF-ESO）。与传统的 LESO 相比，所提出的 CCF-ESO 可以消除稳态位置估计误差，并且由于具有更好的高次谐波抗扰性，其谐波位置估计误差更小。通过在 1.2 kW IPMSM 驱动平台上进行对比实验，验证了所提出的一阶 CCF-ESO 的有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Transactions on Industry Applications 工程技术-工程：电子与电气

CiteScore

9.90

自引率

9.10%

发文量

747

审稿时长

3.3 months

期刊介绍： The scope of the IEEE Transactions on Industry Applications includes all scope items of the IEEE Industry Applications Society, that is, the advancement of the theory and practice of electrical and electronic engineering in the development, design, manufacture, and application of electrical systems, apparatus, devices, and controls to the processes and equipment of industry and commerce; the promotion of safe, reliable, and economic installations; industry leadership in energy conservation and environmental, health, and safety issues; the creation of voluntary engineering standards and recommended practices; and the professional development of its membership.