To provide a regenerative power storage system preventing the occurrence of power reverse supply to a power receiving point or regeneration lapse by storing regenerative power, even when the generated regenerative power cannot be absorbed by power loading.
Direct current power obtained by rectifying alternating current power from a power receiving system 12 is supplied to a train by a feeding system 11, and the alternating current power is supplied to power loading by a distributing system 17. The regenerative power from the train generated in the feeding system 11 is reversely converted by an inverter system 23 to be supplied to the distributing system. A power storage device 27 connecting to the feeding system through a circuit breaker 28 is provided, and regenerative power electric energy in the feeding and power loading electric energy are compared. When the regenerative power electric energy is larger than the power loading electric energy, the circuit breaker 28 is turned on the power, thereby storing the regenerative power.
Takehana Kikuo
Hiroshi Uji