Energy Saving Technologies for Railway Traction Motors

It is very important to improve the efficiency of traction motors to save energy in electric trains. In addition, improving the efficiency is also important to realize a totally enclosed traction motor that requires less maintenance. Therefore, the use of high-efficiency motors is expanding. Many of them are induction motors with high-performance materials; e.g. low-loss electrical steel sheets and low-resistivity conductors. Meanwhile, some of them use permanent magnet synchronous motors, which have higher efficiency than induction motors. In this paper, we will review these recent technologies to improve the efficiency of traction motors and give examples of high-efficiency traction motors in use in Japan. Copyright © 2010 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

[1]  Junya Kawamura,et al.  Performance Comparison between a Permanent Magnet Synchronous Motor and an Induction Motor as a Traction Motor for High Speed Train , 2006 .

[2]  Junya Kawamura,et al.  Development of Totally Enclosed Permanent Magnet Synchronous Motor , 2008 .

[3]  Katsumi Yamazaki,et al.  Stray Load Loss Calculation of Induction Motors Using Electromagnetic Field Analysis , 2008 .

[4]  Koichi Matsuoka,et al.  Development of Wheel Mounted Direct Drive Traction Motor for Rail Vehicle , 2001 .

[5]  Koichi Matsuoka,et al.  Development of Traction Motor for Gauge Change Train , 2001 .

[6]  Junya Kawamura,et al.  TOTALLY ENCLOSED PERMANENT MAGNET SYNCHRONOUS MOTOR FOR COMMUTER TRAINS , 2005 .

[7]  Junya Kawamura,et al.  Energy Consumption Calculation of Permanent Magnet Synchronous Motor for Railway Vehicle Traction Using Equivalent Circuit , 2005 .

[8]  Haruyuki Kometani,et al.  Quantification of Stray Losses in a 75kW Induction Motor with Caged Bars , 2003 .

[9]  Koichi Matsuoka,et al.  Totally-Enclosed Type Traction Motor Using Permanent Magnet Synchronous Motor , 2004 .

[10]  Yuji Yamamoto,et al.  Promotion of Energy Saving for the Shinkansen Rolling Stock , 2009 .

[11]  M. Kondo,et al.  Rotor design for high efficiency induction motors for railway vehicle traction , 2009, 2009 International Conference on Electrical Machines and Systems.

[12]  白石 茂智,et al.  高効率、省メンテナンスを目指す鉄道車両用主電動機 (特集 鉄道システム技術 人と環境に優しい社会の実現に貢献) , 2003 .