| 摘要 |
<p>The invention relates to a supply circuit (16) for a multi-system locomotive, the supply circuit (16) containing a first and second power converter (18, 20) which are each connected in electrically conductive fashion to a first and second inverter (6, 8) by means of a first and second intermediate circuit capacitor (10, 12). According to the invention the AC-side terminals (22, 28) of the first bridge branches (24, 30) and the AC-side terminals (32, 38) of the second bridge terminals (34, 40) of the two power converters (18, 20) are connected to one another by means of inductors (26, 36), the power converter valves (V13, V14) of the second bridge branch of the first power converter (18) and the power converter valves (V21, V22) of the first bridge branch (30) of the second power converter (20) being drivable by means of a control circuit (52) which generates control signals as a function of a DC input voltage (UE) and an intermediate circuit reference voltage (UKsoll), whereas the other power converter valves (V11, V12, V23, V24) of the two power converters (18, 20) can be driven in clocked fashion by means of a further control circuit (58). In this way, a supply circuit (16) for a multi-system locomotive is obtained with which, in the case of DC voltage supply and AC voltage supply, a controlled intermediate circuit actual voltage (UK1, UK2) is obtained. <IMAGE></p> |
