A Study on the Basic Characteristics of a Novel Design Active Magnetic Bearing with Permanent Magnet Bias Flux

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カテゴリ: 論文誌(論文単位)グループ名: 【D】産業応用部門発行日: 2011/08/01タイトル(英語): A Study on the Basic Characteristics of a Novel Design Active Magnetic Bearing with Permanent Magnet Bias Flux著者名: Nobuyuki Kurita (Department of Electronic Engineering, Gunma University), Keisuke Ohshio (Department of Electronic Engineering, Gunma University), Takeo Ishikawa (Department of Electronic Engineering, Gunma University)著者名(英語): Nobuyuki Kurita (Department of Electronic Engineering, Gunma University), Keisuke Ohshio (Department of Electronic Engineering, Gunma University), Takeo Ishikawa (Department of Electronic Engineering, Gunma University)キーワード: magnetic bearing，permanent magnet，magnetic field analysis，attractive force characteristic要約(英語): Advances in the industrial field demand sophisticated electrical motors. However, degradation of traditional ball bearing systems can reduce the efficiency of the motor over time. In addition, bearings require regular maintenance such as lubrication and replacement. Moreover, they cannot be used under some specific environments such as high temperature and vacuum. In order to overcome these problems, this paper proposes a novel active magnetic bearing design. It has only four poles to control the horizontal and vertical suspension, and it is possible to increase the coil winding number without an increase in shaft length. Hence, we can design a high attractive force and stiffness bearing. The stator was initially designed by magnetic field analysis. A simple experimental setup was fabricated in order to confirm the operation principle and attractive force characteristic. The time domain dynamic performance was confirmed by simulation and experimental results. The experimental results verified that the proposed magnetic bearing has sufficient performance for industrial application. Additionally, a small size hydraulic generator was designed for future application.本誌: 電気学会論文誌D（産業応用部門誌） Vol.131 No.8 （2011） 特集：IPEC-Sapporo 2010本誌掲載ページ: 1000-1006 p原稿種別: 論文／英語電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejias/131/8/131_8_1000/_article/-char/ja/ Show more