公开(公告)号：US20190291584A1

公开(公告)日：2019-09-26

申请号：US16335400

申请日：2017-02-28

Applicant: BYD COMPANY LIMITED

Inventor： Lin REN ,  Daolin LI ,  Wengang LUO

IPC: B60L7/10 ,  H02J7/14 ,  B60M1/13 ,  B60M3/06 ,  B61C3/02 ,  B61C17/00

Abstract: This disclosure discloses a braking-recovery system and method for a train, and a train. The system includes: a traction network, a train, and an energy storage power station. The energy storage power station is connected to the traction network, the energy storage power station includes a second controller, and the second controller controls the energy storage power station according to the voltage of the traction network to perform charging or discharging. The train includes: an electric brake; a battery; a distributor, connected to the electric brake, where there is a node between the distributor and the electric brake; a bidirectional DC/DC converter, where one end of the bidirectional DC/DC converter is connected to the battery, and another end of the bidirectional DC/DC converter is connected to the node; and a first controller, used to control, when the train is braked, the distributor and the bidirectional DC/DC converter to feed back braking electric energy of the train to the traction network, and control the bidirectional DC/DC converter according to a voltage of the traction network to absorb the braking electric energy of the train by using the battery.