Development of excitation system by contactless power transfer system for synchronous motors

• Project/Area Number: 24560323
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Power engineering/Power conversion/Electric machinery
• Research Institution: Saitama University
• Principal Investigator: KANEKO Yasuyoshi 埼玉大学, 理工学研究科, 教授 (10233892)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000); Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
• Keywords: 電気機器 / 非接触給電 / 同期電動機 / 非接触式スリップリング / 非接触スリップリング / ワイヤレス励磁同期電動機 / レアアースレスモータ

Outline of Final Research Achievements

For power transfer to the rotor circuit of excitation-type synchronous motors, we propose several contactless power transfer systems with different shape of pads and some resonant circuits to obtain the high efficiency of the power. We examine the characteristics of some contactless power transfer systems with different resonant capacitor topology to compensate for the leakage reactance and compared them. The rotating shaft of the rotor is covered with an aluminum sheet to reduce the loss due to the leakage flux. Power transfer tests were performed. A high efficiency of 91.8% was achieved when power was transferred to the rotor circuit of the synchronous motor.

Research Products

• [Journal Article] Excitation System by Contactless Power Transfer System with the Primary Series Capacitor Method (2014)
  • Author(s): R. Nozawa, R. Kobayashi, H. Tanifuji, Y. Kaneko, S. Abe
  • Journal Title: Proc. of International Power Electronics Conference, IPEC-Hiroshima 2014 Volume: 1 Pages: 1115-1121
  • Peer Reviewed
• [Journal Article] Methods for Reducing Leakage Electric Field of a Wireless Power Transfer System for Electric Vehicles (2014)
  • Author(s): M.Jo, Y.Kaneko, S.Abe
  • Journal Title: Proc. of 2014 IEEE Energy Conversion Congress and Exposition, ECCE2014 Volume: 1 Pages: 1762-1769
  • Peer Reviewed
• [Journal Article] Technology Trends of Wireless Power Transfer Systems for Electric Vehicle and Plug-in Hybrid Electric Vehicle (2013)
  • Author(s): Y. Kaneko and S. Abe
  • Journal Title: Proc. of The 10th IEEE International Conference on Power Electronics and Drive Systems 2013, PEDS2013 Volume: 1 Pages: 1009-1014
  • Peer Reviewed
• [Journal Article] A 10kW Transformer with A Novel Cooling Structure of A Contactless Power Transfer System (2013)
  • Author(s): I. Fujita, T. Yamanaka, Y. Kaneko, S. Abe, and T. Yasuda
  • Journal Title: Proc. of 2013 IEEE Energy Conversion Congress and Exposition, ECCE2013 Volume: 1 Pages: 3643-3650
  • Peer Reviewed
• [Journal Article] A Large Air Gap 3 kW Wireless Power Transfer System for Electric Vehicles (2012)
  • Author(s): H. Takanashi, Y. Sato, Y. Kaneko, S. Abe, and T. Yasuda
  • Journal Title: Proc. of 2012 IEEE Energy Conversion Congress and Exposition, ECCE2012 Volume: 1 Pages: 269-274
  • Peer Reviewed
• [Presentation] 一次直列コンデンサ方式を用いた非接触給電における負荷抵抗値 (2014)
  • Author(s): 小林涼太,野沢亨介,金子裕良
  • Organizer: 電気学会産業応用部門大会
  • Place of Presentation: 東京電機大学
  • Year and Date: 2014-08-28
• [Presentation] Characteristic comparison between H-shaped core and circular core in wireless power transfer systems for electric vehicles (2013)
  • Author(s): Y. Kaneko
  • Organizer: 2013 IEEE Energy Conversion Congress and Exposition
  • Place of Presentation: 米国・デンバー
  • Invited
• [Presentation] 回転型非接触給電トランスの特性と効率改善
  • Author(s): 谷藤光、野沢亨介、金子裕良、阿部茂
  • Organizer: 電気学会産業応用部門大会
  • Place of Presentation: 千葉工業大学
• [Presentation] 一次直列補償コンデンサを用いた回転励磁回路への非接触給電
  • Author(s): 谷藤光、野沢亨介、金子裕良、阿部茂
  • Organizer: 電気学会半導体電力変換研究会
  • Place of Presentation: 同志社大学
• [Presentation] 非接触給電によるワイヤレス同期電動機の開発
  • Author(s): 野沢亨介、谷藤光、金子裕良、阿部茂
  • Organizer: 電気学会全国大会
  • Place of Presentation: 名古屋大学