RAIL VEHICLE COMPRISING AN ENERGY STORAGE SYSTEM HAVING AN ENERGY STORAGE DEVICE AND A TRANSFORMER, A METHOD OF OPERATING SUCH A RAIL VEHICLE, AND A METHOD OF ASSEMBLING A TRAIN COMPOSITION COMPRISING A RAIL VEHICLE CARRIAGE

Abstract

The present invention relates to a rail vehicle (22) comprising an energy storage device and a transformer (18) associated with the energy storage device; a rail vehicle carriage (24) comprising an energy storage device and a transformer (18) associated with the energy storage device; a method of operating a rail vehicle having an energy storage system (15); and a method of assembling a train composition. The rail vehicle (22) includes a rail vehicle carriage (24), traction equipment (6), a high-voltage conductor (5), a current collector (1), and an energy storage system (15) having an energy storage device. The traction equipment (6) comprises at least one traction power converter (9) and at least one traction motor (11). The high-voltage conductor (5) electrically connects the traction equipment (6) to the current collector (1). The energy storage device may be a battery (20).

Claims

1. A rail vehicle comprising: a rail vehicle carriage; a traction equipment comprising at least one traction converter and at least one traction motor; a high-voltage conductor and a current collector, the high-voltage conductor electrically connects the traction equipment to the current collector; and an energy storage system with an energy storage device wherein the energy storage system comprises a transformer which is associated with the energy storage device and is electrically connected to the energy storage device and to the high-voltage conductor.

2. A rail vehicle according to claim 1, wherein the high-voltage conductor can selectively be supplied with high-voltage alternating current via the current collector by an external power supply and/or by means of the energy storage system.

3. A rail vehicle according to claim 2, wherein the high-voltage conductor is connectable to an external power supply via the current collector without components influencing the voltage in such a way that the high-voltage conductor and the traction equipment can substantially be supplied with the voltage and the frequency of the current of the external power supply.

4. A rail vehicle according to claim 2, wherein the high-voltage conductor and the traction equipment are adapted to be supplied with an AC voltage of substantially 25 kV at a frequency of substantially 60 Hz or 50 Hz.

5. A rail vehicle according to claim 1, wherein the energy storage system has an electrical frequency filter.

6. A rail vehicle according to claim 1, wherein the rail vehicle has at least one double-deck carriage.

7. A rail vehicle according to claim 1, wherein the rail vehicle comprises a plurality of rail vehicle carriages, wherein the at least one battery is arranged in exactly one battery carriage or in several of the rail vehicle carriages.

8. A rail vehicle according to claim 7, wherein the rail vehicle carriage comprising the battery is accessible for passengers to pass through the interior of the rail vehicle carriage.

9. A rail vehicle according to claim 7, wherein the rail vehicle carriage, which comprises the battery, comprises a lower level and an upper level.

10. A rail vehicle according to claim 1, wherein the rail vehicle comprises a charge status display by means of which the charge status of the batteries can be displayed.

11. A rail vehicle (22) according to claim 10, wherein a remaining charging time until the battery is fully charged can be displayed by the charge status display.

12. A rail vehicle according to claim 1, wherein power consumers of the rail vehicle which are not used for traction are connectable or are at least partially electrically connected to a battery converter.

13. A rail vehicle carriage for a rail vehicle according to claim 1, comprising: a high-voltage conductor electrically connectable to traction equipment comprising at least one traction converter and at least one traction motor and to a current collector; and an energy storage system with an energy storage device, wherein the energy storage system has a transformer which is assigned to the energy storage device and is electrically connected to the energy storage device and to the high-voltage conductor.

14. A method for operating a rail vehicle according to claim 1, wherein the traction motor is at least temporarily and/or partially supplied with electric current from the energy storage system.

15. A method of assembling a train composition, wherein a rail vehicle carriage according to claim 13 is added to an existing train composition.

16. The rail vehicle according to claim 1, wherein the energy storage device is a battery.

17. The rail vehicle according to claim 2, wherein the high-voltage conductor and the traction equipment are adapted to be supplied with an AC voltage of substantially 15 kV at a frequency of substantially 16.66 Hz.

18. The rail vehicle according to claim 9, wherein the battery is arranged on the lower level.

19. The rail vehicle carriage for a rail vehicle according to claim 13, wherein the energy storage device is a battery.

20. A method according to claim 14, wherein the energy storage device is a battery and wherein the traction motor is at least temporarily and/or partially supplied with electric current from the battery.

Description

[0044] The invention is explained in more detail in the following figures. Herein shows:

[0045] FIG. 1: A rail vehicle with a battery carriage with the associated schematic circuit diagram,

[0046] FIG. 2: a schematic circuit diagram of the rail vehicle according to FIG. 1, which is driven by an external power supply,

[0047] FIG. 3: a schematic circuit diagram of the rail vehicle shown in FIG. 1, which is driven by a battery,

[0048] FIG. 4: a possible vehicle configuration of a rail vehicle with a battery carriage,

[0049] FIG. 5: an alternative vehicle configuration of a rail vehicle with two rail vehicle carriages with batteries,

[0050] FIG. 6: an alternative configuration of a rail vehicle with two power carriages with batteries.

[0051] FIG. 1 shows a rail vehicle 22 with a battery carriage 23 and the associated circuit diagram. The rail vehicle 22 has a plurality of rail vehicle carriages 24. The rail vehicle carriages 24 have, in part, a lower level 26 and an upper level 27. The rail vehicle 22 has a current collector 1. The current collector 1 is connected to a high-voltage conductor 5 of the rail vehicle 22. A main switch 2 is arranged between the current collector 1 and the high-voltage conductor 5. Furthermore, a surge arrester 3 and a plurality of current and voltage sensors 4 are arranged between the current collector 1 and the high-voltage conductor 5.

[0052] The rail vehicle 22 further comprises a plurality of traction equipment 6.

[0053] The traction equipment 6 each includes a first system isolator 7, a first surge arrester 8, a traction motor 11, a traction transformer 14, an auxiliary drive converter 10, and operating ground brushes 12 and a traction power converter 9.

[0054] An energy storage system 15 is connected to the high-voltage conductor 5. The energy storage system 15 includes a second system isolator 16, a second surge arrester 17, a battery transformer 18, a battery power converter 19, a filter 21, a battery 20, and second operating ground brushes 12.

[0055] The rails 13 are disposed beneath the rail vehicle 22. The energy storage system 15 is separably connected to the traction equipment 6 as well as to the current collector 1 via the second system separator 16.

[0056] FIG. 2 shows the schematic circuit diagram of the rail vehicle of FIG. 1 (not shown), in an operating mode in which it is operated by means of an external power supply. Identical reference signs indicate the same components.

[0057] In the drive shown, electrical energy flows from an external power supply via the current collector 1 through the main switch 2, the first system isolator 7, the traction transformer 14 and the traction power converter 9 to the traction motor 11. In addition, electrical energy flows from the current collector 1 through the high-voltage conductor 5 and the battery transformer 18 to the battery 20.

[0058] Dashed lines show a possible second energy storage system and possible further traction equipment.

[0059] FIG. 3 shows the schematic circuit diagram of the rail vehicle 22 according to FIG. 1 in an operating mode in which it is driven by a battery 20. The current collector 1 is not connected to an overhead line. In this operating mode of the rail vehicle 22, the electrical energy flows from the battery 20 through the battery converter 19, the battery transformer 18, the high-voltage conductor 5, the first system isolator 7, the traction transformer 14 and the traction power converter 9 to the traction motor 11.

[0060] Dashed lines show a possible second energy storage system and possible further traction equipment.

[0061] FIG. 4 shows a possible vehicle configuration of a rail vehicle 22. The rail vehicle 22 has a plurality of rail vehicle carriages 24. One of the rail vehicle carriages 24 is designed as a battery carriage 23. The rail vehicle carriages partially have a lower level 26 and an upper level 27. The rail vehicle 22 has a current collector 1. The battery carriage 23 has a battery 20.

[0062] The rail vehicle 22 has three carriages and two power carriages. The battery carriage 23 is arranged in the middle of the composition of the rail vehicle 22. Thus, on each side of the battery carriage 23 there is another carriage and a power carriage. In this train composition, the battery 20 is located in a single battery carriage 23. The battery carriage 23 with the battery 20 does not include seating for passengers. The battery carriage 23 with the battery 20 has a passage area so that passengers can pass through the battery carriage 23 with the batteries 20 during operation of the train composition and thus pass from a carriage in front of the battery carriage 23 through the battery carriage 23 to a carriage behind the battery carriage 23.

[0063] FIG. 5 shows a possible train composition of a rail vehicle 22 with six rail vehicle carriages 24. Two of the rail vehicle carriages 24 are equipped with batteries 20. The rail vehicle carriages 24 have a lower level 26 and an upper level 27. Further, the rail vehicle 22 has a current collector 1. The two rail vehicle carriages 24 equipped with batteries 20 are located in the center of the train composition. The two rail vehicle carriages 24 equipped with batteries 20 are located side by side. Thus, one additional carriage and one power carriages are located before and after each of the two rail vehicle carriages 24 equipped with batteries 20. In this train composition, the batteries 20 are thus divided between two rail vehicle carriages 24. The rail vehicle carriages 24 with the batteries 20 each have an area in which the batteries 20 are arranged. The rail vehicle carriages 24 with the batteries 20 also have a passenger area in which passengers can stay. Further, the rail vehicle carriages 24 with the batteries 20 include a passenger boarding arrangement.

[0064] FIG. 6 shows a possible configuration of a rail vehicle 22. The rail vehicle 22 includes a plurality of rail vehicle carriages 24. The rail vehicle carriages 24 have a lower level 26 and an upper level 27. The rail vehicle 22 also has a current collector 1. The rail cars of the rail vehicle 22 are equipped with batteries 20. The batteries 20 are thus arranged in the power carriages. In this train composition of the rail vehicle 22, the batteries 20 are located in the power carriages, which are arranged at the end of the train. Between the two power carriages are two rail vehicle carriages 24. The rail vehicle carriages/ power carriages 23 with the batteries 20 each have an area in which the batteries 20 are arranged. The rail vehicle carriages/power carriages 24 also have a passenger area in which passengers can be seated. Further, all of the rail vehicle carriages include a passenger boarding arrangement.