Design Optimization of Power Electronic Transformers in Traction Applications

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: 2020/11/01

タイトル(英語): Design Optimization of Power Electronic Transformers in Traction Applications

著者名: Sandeep Kumar Chowdhury (Electromobility Sytems Lab, Waseda University), Hiroyasu Kobayashi (Electromobility Sytems Lab, Waseda University), Keiichiro Kondo (Electromobility Sytems Lab, Waseda University)

著者名(英語): Sandeep Kumar Chowdhury (Electromobility Sytems Lab, Waseda University), Hiroyasu Kobayashi (Electromobility Sytems Lab, Waseda University), Keiichiro Kondo (Electromobility Sytems Lab, Waseda University)

キーワード: Dual Active Bridge (DAB)，Series Resonant Converter (SRC)，Medium Frequency Transformer (MFT)，ZVS/ZCS (Zero Voltage/Current Switching)，American Wire Gauge (AWG)

要約(英語): To increase efficiency and reduce weight of low frequency traction transformers (LFTs), many studies have been dedicated to the study and design of power electronic transformers (PETs). Most of these studies have focussed on 16.7Hz traction systems and a few on 50/60Hz systems. PETs offer several degrees of freedom to the designer such as configuration and modulation of power stages, switching frequency, magnetic material etc., which are evaluated based on given specifications to meet the objectives of maximum power density and efficiency. This paper presents a detailed analysis of efficiency and power density of each power stage in a PET with respect to its design parameters. A design methodology is outlined to replace an LFT with an optimally designed PET. To elucidate the design process, the considered case is a 4.16MW transformer supplied by a 25KV, 60Hz catenary for a Shinkansen series-700. The configuration of the PET considered is of the indirect type with a cascaded H-bridge as the AC/DC stage interfacing the catenary and a set of parallelly connected DC/DC converters at the output. The best obtained efficiency is 97.7% with a weight of 1.69 tonnes which is significantly higher than that of the LFT.

本誌: IEEJ Journal of Industry Applications Vol.9 No.6 （2020）

本誌掲載ページ: 674-684 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/9/6/9_20002062/_article/-char/ja/