Power supply system for railway vehicles

Abstract

A power supply system for railway vehicle includes a plurality of power supply apparatuses installed on a vehicle of a train to supply alternating-current power to a plurality of air conditioning devices within the train in parallel via output contactors and a common bus. The air conditioning devices of the vehicles each generate a step calorie information item that refers to information on power requirement for an air-conditioning target space. A collection device gathers the step calorie information item generated by each of the air conditioning devices of the vehicles and computes total step calorie information for all the vehicles by summing up the step calorie information items. Each of the power supply apparatuses determines whether to suspend the power supply to the air conditioning devices on the basis of the total step calorie information for all the vehicles that is transmitted from the collection device.

Dependencies are inferred from the claim text.