Investigation of Servomotor Structure for Sensorless Control Based on High-Frequency Injection Method

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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: 2021/11/01タイトル(英語): Investigation of Servomotor Structure for Sensorless Control Based on High-Frequency Injection Method著者名: Masanobu Kakih ara (Corporate Technology Division, Yaskawa Electric Corporation), Mamoru Takaki (Corporate Technology Division, Yaskawa Electric Corporation), Motomichi Ohto (Drives Division, Yaskawa Electric Corporation), Shinya Morimoto (Corporate Techno著者名(英語): Masanobu Kakihara (Corporate Technology Division, Yaskawa Electric Corporation), Mamoru Takaki (Corporate Technology Division, Yaskawa Electric Corporation), Motomichi Ohto (Drives Division, Yaskawa Electric Corporation), Shinya Morimoto (Corporate Technology Division, Yaskawa Electric Corporation)キーワード: sensorless drive，high-frequency injection，saliency ratio，servomotor要約(英語): This paper presents the servomotor structure suitable for sensorless drives based on high-frequency injection method. The position estimation accuracy is related to the saliency ratio of the motor. Although the motor with increasing saliency ratio with the load has been reported, the mechanism of the phenomenon has not been explained.In this paper, the improvement in the saliency ratio in a conventional servomotor structure is explained with respect to the magnetic flux distribution. Moreover, the increase in the saliency ratio through further structural improvement is examined, and the effect is confirmed by experiments.本誌: IEEJ Journal of Industry Applications Vol.10 No.6 （2021） Special Issue on “ICEMS 2020-Hamamatsu”本誌掲載ページ: 718-725 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/10/6/10_21001184/_article/-char/ja/ Show more