Traction system for rail vehicle and control method therefor

摘要

The drive system has a number of partial current regulators (40.1,..40.n) using switching semiconductors. The semiconductors are connected in series with a choke coil (38) between a current take-off (36) cooperating with an overhead supply line and wheel/rail system (37). Each of the partial current regulators has a 4-quadrant regulator, an intermediate circuit capacitor and a DC/AC converter on the primary side and a transformer on the secondary side, with the secondary sides connected in parallel to provide a common AC circuit.