Position Sensorless Control Method for Permanent Magnet Synchronous Motors Using Speed Observer and Opened Phase Voltage Caused by Magnetic Saliency

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門（英文）

発行日: 2019/11/01

タイトル(英語): Position Sensorless Control Method for Permanent Magnet Synchronous Motors Using Speed Observer and Opened Phase Voltage Caused by Magnetic Saliency

著者名: Sari Maekawa (TOSHIBA CORPORATION YOKOHAMA COMPLEX), Mengyue Wu (Meiji University School of Science and Technology), Hisao Kubota (Meiji University School of Science and Technology)

著者名(英語): Sari Maekawa (TOSHIBA CORPORATION YOKOHAMA COMPLEX), Mengyue Wu (Meiji University School of Science and Technology), Hisao Kubota (Meiji University School of Science and Technology)

キーワード: PMSM，sensorless control，saliency，opened phase voltage，sinusoidal wave drive，speed observer

要約(英語): In this research, a new estimation method for the sensorless control of a permanent magnet synchronous motor (PMSM) in the low speed range is proposed using a speed observer and an opened phase voltage. An approximate linear equation of the opened phase voltage, which varies depending on the rotor position, is calculated using the least squares method with constant time intervals. This estimated position is used as the input of the speed observer instead of the actual position information. The position detection method based on the opened phase voltage can be applied to a non-saliency and closed shelf motor in a low speed range where back-EMF (Electro-Motive Force)-based methods are difficult to apply. In the proposed method, the current waveform is satisfactorily controlled in a sinusoidal waveform during the period when the opened phase voltage is not measured. Compared to conventional methods, it improves the energy efficiency and reduces the torque ripple. In this paper, we present the proposed position estimation method and the experimental results.

本誌: IEEJ Journal of Industry Applications Vol.8 No.6 （2019）

本誌掲載ページ: 875-883 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejjia/8/6/8_875/_article/-char/ja/