How to charge a railroad vehicle drive system and a power storage device in a railroad vehicle

摘要

This railroad vehicle drive system is provided with: an electrical storage device, which is provided with a first power conversion means and a second power conversion means capable of connecting with wiring, and which is provided to be capable of connecting with the second power conversion means; an opening/closing unit provided between the first power conversion means and the second power conversion means; a contact control unit provided between the second power means and the wiring; a current conduction direction switching means provided between the second power conversion means and the contact control unit; and a control device that controls the opening/closing unit, the contact control unit, and the conduction direction switching means.