基于高频阻抗检测的隐极式永磁同步电机三步无位置传感器起动技术

微特电机 ›› 2022, Vol. 50 ›› Issue (7): 1-8.

• 理论研究 • 下一篇

基于高频阻抗检测的隐极式永磁同步电机三步无位置传感器起动技术

李跃¹, 刘侃¹, 张冰鑫¹, 周世超¹, 胡伟¹, 屈阳华², 耿扬策²

1.湖南大学机械与运载工程学院,长沙 410082;
2.火装驻长沙地区军代室,长沙 410205

收稿日期:2022-02-28 出版日期:2022-07-28 发布日期:2022-08-15
作者简介:李跃(1996—),男,硕士研究生,研究方向为永磁同步电机无位置传感器控制技术。刘侃(1982—),男,博士,教授,研究方向为轨道交通/新能源车电驱技术、伺服控制等。张冰鑫(1997—),男,硕士研究生,研究方向为永磁同步电机驱动控制技术。
基金资助:
国家自然科学基金项目(51877075);湖湘高层次人才聚集工程项目(S2019RSCXRC0094)

Three-Step Sensorless Start-up of a Non-salient Pole Permanent Magnet Synchronous Motor Based on High-Frequency Impedance Detection

LI Yue¹, LIU Kan¹, ZHANG Bingxin¹, ZHOU Shichao¹, HU Wei¹, QU Yanghua², GENG Yangce²

1. College of Mechanical and Vehicle Engineering, Hunan University,Changsha 410082, China;
2. Military Representative Office in Changsha of Rocket Force Equipment Department,Changsha 410205, China

Received:2022-02-28 Online:2022-07-28 Published:2022-08-15

摘要/Abstract

摘要： 针对隐极式永磁同步电机初始位置难以检测的难题,提出了一种基于高频阻抗空间分布检测技术的初始位置估算方法。该方法利用不同位置的高频阻抗分布特性不同的特点,通过在转子的不同空间位置注入高频信号,获得隐极式永磁同步电机的初始位置信息。基于获得的隐极式永磁同步电机初始位置,进一步提出了一种三步无位置传感器起动方法。通过该起动方法,可以获得较小的起动电流,实现隐极式永磁同步电机在无位置传感器控制条件下的零速稳定起动、低速开环运行以及到闭环控制的平稳过渡。在一台隐极式永磁同步电机上进行了实验验证。实验结果表明,该方法不仅能获取隐极式永磁同步电机的初始位置,而且能显著降低起动电流大小,并实现隐极式永磁同步电机在零、低速工况下的高频注入无位置传感器控制。

关键词: 隐极式永磁同步电机, 无位置传感器控制, 三步起动方案, 高频注入, 高频阻抗

Abstract: Aiming at the difficulty of detecting the initial position of non-salient pole permanent magnet synchronousmotor, an initial position detection method based on high-frequency impedance spatial distribution detection technology was proposed.The initial position information of the non-salient pole PMSM was obtained by injecting high-frequency signals into different spatial positions of the rotor. Based on the obtained initial position,a three-step sensorless start-up of a non-salient pole PMSM was further proposed.Through the starting method, a smaller starting current was obtained, so as to realize the zero-speed starting of the non-salient pole PMSM and the smooth transition from low-speed open-loop to closed-loop control. The proposed method had been experimentally verified on a non-salient pole PMSM. The experimental results show that the method can not only obtain the initial position of the motor, but also significantly reduce the starting current,so as to realize the high-frequency injection sensorless control of non-salient pole PMSM under zero and low speed conditions.

Key words: non-salient pole permanent magnet synchronous motor(PMSM), sensorless control,three-step start-up scheme, high-frequency (HF) signal injection, high-frequency impedance

中图分类号:

TM351

李跃, 刘侃, 张冰鑫, 周世超, 胡伟, 屈阳华, 耿扬策. 基于高频阻抗检测的隐极式永磁同步电机三步无位置传感器起动技术[J]. 微特电机, 2022, 50(7): 1-8.

LI Yue, LIU Kan, ZHANG Bingxin, ZHOU Shichao, HU Wei, QU Yanghua, GENG Yangce. Three-Step Sensorless Start-up of a Non-salient Pole Permanent Magnet Synchronous Motor Based on High-Frequency Impedance Detection[J]. Small & Special Electrical Machines, 2022, 50(7): 1-8.

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基于高频阻抗检测的隐极式永磁同步电机三步无位置传感器起动技术

Three-Step Sensorless Start-up of a Non-salient Pole Permanent Magnet Synchronous Motor Based on High-Frequency Impedance Detection

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