| 摘要 |
To propose a brake chopper system that suppresses additional devices when a brake chopper is mounted. A traction converter system includes a transformer that transforms AC power input from a collector collecting AC power, a first power converter that converts the AC power transformed in the transformer into DC power, a second power converter that converts the DC power into three-phase AC power, a filter capacitor provided between the first and the second power converters, and a charging resistor provided between the first power converter and the transformer and limiting charge current flowing from the transformer into the filter capacitor. The first power converter supplies regenerative power generated in a three-phase AC motor at braking of a rolling stock to the charging resistor and consumes the regenerative power with the charging resistor. |
