| |
DEVELOPMENT OF A PWM CONVERTER AND INVERTER DEVICE FOR SHINKANSEN EMU
| [View]
[Download]
|
| Author(s) |
Hiroshi Hata; Kosuke Aburaya; Eimei Takahara; Masato Iwataki |
| Abstract |
Japan Railways group (former Japanese National Railways) has been researching and developing a voltage source PWM converter and inverter system with GTO thyristor (4500 V 2500 A) for Shinkansen emu (AC25kV 50 or 60Hz). This system can realize a faster train speed, a smaller size and Iighter weight of propulsion system, a reduction of traction motors' maintenance and a less energy consumption. But we had problems to be solved such as inverter output current beat, rapid increase of the converter input current caused by the DC magnetization of main transformer exceeding the set value of the overcurrent detecter, control of regenerative brake in time of power failure. We worked out countermeasures and tested them with good prospects of their practical application. |
| Download |
| Filename: | Unnamed file |
| Filesize: | 508.5 KB |
|
| Type |
Members Only |
| Date |
Last modified 2021-02-23 by System |
| |
 |