| 摘要 |
PROBLEM TO BE SOLVED: To provide a power supply system for an electric rolling stock capable of smoothly supplying power to an electric rolling stock, without installing a complex overhead wire in a district such as a curved track section where installing of an overhead wire is difficult. SOLUTION: In the power supply system for an electric rolling stock, a power is supplied through an overhead wire 8 from a power station, and the electric rolling stock running on the track is driven on the power. There are provided a first power supply means which uses the power supplied at an overhead wire district A where the overhead wire 8 is installed as a drive source, and a second power supply means 53 which uses at least one of a fuel cell, storage cell, diesel generator, and diesel engine equipped on the electric rolling stock as a power source. A district such as a curved track where the overhead wire is difficult to be installed is assumed as a non-overhead-wire district B. When a signal detecting means 38 mounted on the electric rolling stock detects a switching signal from a signal transmission means 30 installed near the border between the overhead-wire district A and the non-overhead-wire district B, switching is performed between the first power supply means and the second power supply means. COPYRIGHT: (C)2003,JPO
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