高周波駆動の誘導反発型磁気浮上装置における非磁性導体の導電率の影響

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: 2013/11/01

タイトル(英語): Influence of Electrical Conductivity of Nonmagnetic Conductor in Electrodynamic Suspension Device using AC Electromagnets Driven by High Frequency Current

著者名: 秋山　京介（東京都市大学），鳥居　粛（東京都市大学），岩下　聡（東京都市大学）

著者名(英語): Kyousuke Akiyama (Tokyo City University), Susumu Torii (Tokyo City University), Satoshi Iwashita (Tokyo City University)

キーワード: 誘導反発，渦電流，薄非磁性導体，表皮効果，導電率，高周波駆動　　electrodynamic suspension，eddy current，thin nonmagnetic conductor，skin effect，electrical conductivity，high frequency drive

要約(英語): Levitation characteristics of an electrodynamic suspension device using AC electromagnets driven by a high frequency current are influenced by the skin effect. The skin depth depends on the frequency of the exciting current, thickness of the nonmagnetic conductor, and electrical conductivity. The frequency that enables the levitation is estimated by measuring frequency characteristics of the lift force and the secondary copper loss and then calculating the temperature rise per second from the secondary loss when the nonmagnetic conductor thickness and electrical conductivity are changed. In addition, the thickness of the nonmagnetic conductor suitable for each drive condition is determined from the frequency characteristics. The measurement results of the frequency characteristics of the levitation device showed that the levitation frequency depends on the conductor thickness and the electrical conductivity. The results also show that the suitable frequency for each drive condition depends on the electrical conductivity of the nonmagnetic conductor.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.133 No.11 （2013）

本誌掲載ページ: 1097-1103 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejias/133/11/133_1097/_article/-char/ja/