電気自動車用H型コア大電力非接触給電トランスの冷却構造

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: 2014/03/01

タイトル(英語): Cooling Structure for Large Capacity H-shaped Core Contactless Power Transformers for Electric Vehicles

著者名: 山中　智裕（埼玉大学），藤田　到（埼玉大学），金子　裕良（埼玉大学），阿部　茂（埼玉大学），保田　富夫（（株）テクノバ）

著者名(英語): Tomohiro Yamanaka (Saitama University), Itaru Fujita (Saitama University), Yasuyoshi Kaneko (Saitama University), Shigeru Abe (Saitama University), Tomio Yasuda (Technova Inc.)

キーワード: 冷却構造，非接触給電，電気自動車，急速充電，温度上昇　　cooling structure，contactless power transfer system，electric vehicle，fast charging，temperature raise

要約(英語): Contactless power transfer systems for charging electric vehicles require a high efficiency, a large air gap, and a good tolerance to lateral misalignment and need to be compact and lightweight. Contactless power transformers have two types of structures: a single-sided transformer with a circular core and a double-sided transformer with a rectangular core. Past studies showed that H-shaped rectangular core transformers are more suitable for vehicles than circular core transformers.However, the cooling of cores located between two magnetic poles is a major challenge for double-sided transformers. In particular, this problem is serious for large capacity transformers such as fast chargers because the loss density is higher than for normal charge transformers. If the radiator interrupts the magnetic flux, not only are eddy current losses created but a coupling is also prevented.This paper proposes a novel cooling structure based on H-shaped core transformers. In the novel structure, radiator metal bars are inserted parallel to the main magnetic flux. As a result, the cooling performance is improved without compromising efficiency.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.134 No.3 （2014） 特集：産業計測自動制御，メカトロニクス制御

本誌掲載ページ: 370-375 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/134/3/134_370/_article/-char/ja/