| 摘要 |
The invention relates to a drive system for a rail vehicle. According to the invention, said drive system has a line-side supply system comprising two half-converter systems (2, 4) and a load-side self-commutated power converter (6) with an output-side three-phase motor (8). Each half-converter system (2, 4) comprises n AC/AC converters (321´...´ 32n; 341 ´...´ 34n), a middle-frequency transformer system (36, 38) comprising k middle-frequency transformers that each comprise n primary windings (40) and j secondary windings (42), and a load-side power converter system (44, 46) with at least one AC/DC converter (48). The 2n AC/AC-converters ( 321 ´...´ 32n; 341 ´...´ 34n) of the two half-converter systems (2, 4) are electrically mounted in series. A respective transformer system (2, 4) of the two half- converter systems (2, 4) couples the n AC/AC converters (321 ´..´ 32n; 341 ´...´ 34n) of a respective half-converter system (2, 4) to a load-side power converter system (6). The series connection of the 2n AC/AC converters (32i, 32n; 341 ´...´ 34n) of the two half-converter systems (2, 4) can be electrically mounted in parallel with a filter throttle (50) by means of a switching appliance (62), and connections (10, 12, 14, 16) on the direct-voltage side, of the two partial power converter systems (2, 4), and the connections (20, 22) on the direct-voltage side, of the load-side self-commutated power converter (6) can be interconnected by means of a switching appliances unit (18) to which a direct line voltage is applied. In this way, a drive system is obtained for rail vehicles, that can be easily configured for each line voltage. |
