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首页> 外文期刊>Energy Conversion, IEEE Transactions on >Sensorless Brushless DC Motor Drive Based on the Zero-Crossing Detection of Back Electromotive Force (EMF) From the Line Voltage Difference
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Sensorless Brushless DC Motor Drive Based on the Zero-Crossing Detection of Back Electromotive Force (EMF) From the Line Voltage Difference

机译：基于线电压差的反电动势（EMF）零交叉检测的无传感器无刷直流电动机驱动器

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摘要

This paper describes a position sensorless operation of permanent magnet brushless direct current (BLDC) motor. The position sensorless BLDC drive proposed, in this paper, is based on detection of back electromotive force (back EMF) zero crossing from the terminal voltages. The proposed method relies on a difference of line voltages measured at the terminals of the motor. It is shown, in the paper, that this difference of line voltages provides an amplified version of an appropriate back EMF at its zero crossings. The commutation signals are obtained without the motor neutral voltage. The effectiveness of the proposed method is demonstrated through simulation and experimental results.
机译：本文介绍了永磁无刷直流（BLDC）电动机的无位置传感器操作。本文提出的无位置传感器BLDC驱动器是基于检测到背压过零的反向电动势（back EMF）。所提出的方法依赖于在电动机的端子处测量的线电压的差。在本文中显示，这种线电压差在其零交叉点处提供了适当的反电动势的放大形式。在没有电动机中性点电压的情况下获得换向信号。仿真和实验结果证明了该方法的有效性。

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