Verification of Estimation of Gap Displacement for Helical Motor
Verification of Estimation of Gap Displacement for Helical Motor
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: 2016/03/01
タイトル(英語): Verification of Estimation of Gap Displacement for Helical Motor
著者名: Ryoji Arai (Yokohana National University), Yasutaka Fujimoto (Yokohana National University)
著者名(英語): Ryoji Arai (Yokohana National University), Yasutaka Fujimoto (Yokohana National University)
キーワード: helical motor,gap displacement estimation,high-frequency voltage injection,sensorless control
要約(英語): A helical motor, which is composed of helically-shaped stator and mover, has various advantages. However, in order to control this motor, we need two encoders to measure the translational position and rotational angle of the mover. This paper describes a method of estimating the gap displacement, which is the relative position of the mover from the center of the stator slot. If we can estimate the gap displacement accurately, one of two encoders used by present helical motors can be removed. Our proposed method uses the relation between the gap displacement and the inductance, which is derived from the mathematical model of the helical motor. In order to estimate the gap displacement, high-frequency voltage is injected into the armature windings and a current of the same frequency component is extracted. The validity of the method is confirmed by numerical simulations and experiments.
本誌掲載ページ: 148-153 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/5/2/5_148/_article/-char/ja/
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