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首页> 外文期刊>IEEE Transactions on Power Electronics >Self-Correction of Commutation Point for High-Speed Sensorless BLDC Motor With Low Inductance and Nonideal Back EMF
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Self-Correction of Commutation Point for High-Speed Sensorless BLDC Motor With Low Inductance and Nonideal Back EMF

机译：低电感和非理想反电动势的高速无传感器BLDC电动机换相点的自校正

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摘要

This paper presents a novel self-correction method of commutation point for high-speed sensorless brushless dc motors with low inductance and nonideal back electromotive force (EMF) in order to achieve low steady-state loss of magnetically suspended control moment gyro. The commutation point before correction is obtained by detecting the phase of EMF zero-crossing point and then delaying 30 electrical degrees. Since the speed variation is small between adjacent commutation points, the difference of the nonenergized phase's terminal voltage between the beginning and the end of commutation is mainly related to the commutation error. A novel control method based on model-free adaptive control is proposed, and the delay degree is corrected by the controller in real time. Both the simulation and experimental results show that the proposed correction method can achieve ideal commutation effect within the entire operating speed range.
机译：为了实现磁悬浮控制力矩陀螺仪的低稳态损耗，本文提出了一种新型的低电感，非理想反电动势的无传感器高速无刷直流电动机换相点自校正方法。校正前的换向点是通过检测EMF过零点的相位，然后延迟30电角度来获得的。由于相邻换向点之间的速度变化较小，因此换相开始和结束之间未通电相的端电压之差主要与换向误差有关。提出了一种基于无模型自适应控制的新型控制方法，并通过控制器实时修正了延迟度。仿真和实验结果均表明，所提出的校正方法可以在整个工作速度范围内达到理想的换向效果。

著录项

  • 来源
    《IEEE Transactions on Power Electronics》 |2017年第1期|642-651|共10页
  • 作者

    Haitao Li; Shiqiang Zheng; Hongliang Ren;

  • 作者单位

    School of Instrumentation Science and Optoelectronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing, China;

    School of Instrumentation Science and Optoelectronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing, China;

    Department of Biomedical Engineering, National University of Singapore, Singapore, Singapore;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Commutation; Brushless DC motors; Rotors; Inductance; Voltage control;

    机译：换向;无刷直流电动机;转子;电感;电压控制;

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