Novel power electronics application in traction power supply system in Japan

The electric railroads have expanded and have been improved by power electronics technologies. This paper introduces power electronics applications in traction power supply systems in Japan. The three-phase 25-MVA STATCOMs (STATic synchronous COMpensator) suppress fluctuations of the system voltage in an independent power system of a metropolitan rail network. The single-phase STATCOMs called as RPCs operate in high-speed railroad substations in the Shinkansen. The RPCs (Railway Power Conditioner) are able to control reactive power or to transfer active power between the two single-phase power systems and achieve voltage stabilization of the power sysytem. These STATCOMs consist of large capacity 3-level GCT (Gate Commutated Turn-off) thyristor converters which achieves downsizing.

[1]  K. Koyanagi,et al.  A modern low loss, high turn-off capability GCT gate drive concept , 2005, 2005 European Conference on Power Electronics and Applications.

[2]  Hirofumi Akagi,et al.  A New Neutral-Point-Clamped PWM Inverter , 1981, IEEE Transactions on Industry Applications.

[4]  N. Morishima,et al.  450MVA GCT- STATCOM for stability improvement and over-voltage suppression , 2010, The 2010 International Power Electronics Conference - ECCE ASIA -.

[5]  M. Yamamoto,et al.  GCT (gate commutated turn-off) thyristor and gate drive circuit , 1998, PESC 98 Record. 29th Annual IEEE Power Electronics Specialists Conference (Cat. No.98CH36196).

[6]  Takeshi Masui,et al.  Introduction and effectiveness of STATCOM to the independent power system of JR East , 2014, 2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA).

[7]  Masaki Noguchi,et al.  Single-phase STATCOM for feeding system of Tokaido Shinkansen , 2010, The 2010 International Power Electronics Conference - ECCE ASIA -.

[8]  Takashi Inoue,et al.  Compensation of Voltage Drop using Static Var Compensator at Sectioning Post for Shinkansen Power Feeding System , 1999 .

[9]  T. Miyashita,et al.  Static power conditioner using GTO converters for AC electric railway , 1993, Conference Record of the Power Conversion Conference - Yokohama 1993.

[10]  J. Yoshizawa,et al.  Development of railway static power conditioner used at substation for Shinkansen , 2002, Proceedings of the Power Conversion Conference-Osaka 2002 (Cat. No.02TH8579).