Abstract: Disclosed are a tramcar power system and a method for controlling the system, the system comprising: a fuel cell (11) coupled to an unidirectional direct-current converter (14); a super capacitor (12) coupled to a first bi-directional direct-current converter (15); and a power battery (13) coupled to a second bi-directional direct-current converter (16), wherein the unidirectional direct-current converter (14), the first bi-directional direct-current converter (15) and the second bi-directional direct-current converter (16) are coupled to an inverter (18) via a direct-current bus (17); the inverter (18) is coupled to a motor of the tramcar; the fuel cell (11), the super capacitor (12), the power battery (13), the first bi-directional direct-current converter (15), the second bi-directional direct-current converter (16) and the inverter (18) are coupled to a master control unit (19); and the master control unit (19) is coupled to a controlling device of the tramcar.

Abstract: The present invention provides a hybrid power rail vehicle power supply box and a hybrid power rail vehicle. The hybrid power rail vehicle power supply box includes: a closed box body (10); a blowing pipe (2) that is fixedly arranged on one side outside the box body (10), is provided with an inlet (21) and at least one blowing branch pipe (22), and is communicated with the box body (10); a discharging pipe (3) that is fixedly arranged on other side outside the box body (10), is provided with an outlet and at least one discharging branch pipe (32), and is communicated with the box body (10) via the discharging branch pipe (32). The hybrid power rail vehicle power supply box can effectively cool the power supply box, protecting the power pack inside thereof, and satisfying outside mounting requirements of the vehicle.