A High-Frequency Pulsating Signal Injection Technique for Surface Permanent Magnet Synchronous Motors

Gayani De Soysa, U. Madawala, N. Patel, Matheus Bevilaqua, T. Ngo
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引用次数: 0

Abstract

Pulsating High Frequency (HF) signal injection is a sensorless rotor position detection technique that uses magnetic saliency to detect rotor position during both starting and low speed operation of Interior Permanent Magnet Synchronous Motors (IPMSMs). However, this technique fails to work on Surface Permanent Magnet Synchronous Motors (SPMSMs) under all load conditions due to lack of magnetic saliency. To overcome this drawback, this paper proposes an extended pulsating HF technique in which an artificial saliency is created by changing flux in the d axis, based on the knowledge of the load applied on the motor shaft. The consequent variation of the d and q axis inductances introduces sufficient magnetic saliency to detect the rotor position at all load conditions. Experimental results are presented to prove the validity of the proposed technique.
表面永磁同步电动机高频脉冲信号注入技术
脉动高频信号注入是一种无传感器转子位置检测技术,它利用磁显著性对内置永磁同步电动机启动和低速运行时的转子位置进行检测。然而,由于缺乏磁显着性,该技术无法在所有负载条件下用于表面永磁同步电动机(SPMSMs)。为了克服这一缺点,本文提出了一种扩展的脉动高频技术,在该技术中,基于对电机轴上施加的负载的了解,通过改变d轴的磁通来产生人工显着性。由此产生的d轴和q轴电感的变化引入了足够的磁显着性来检测转子在所有负载条件下的位置。实验结果证明了该方法的有效性。
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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