| 摘要 |
<p>An electrically operated multisystem vehicle is proposed, having at least one drive system which has one or more four-quadrant controllers (14, 15), an intermediate direct-voltage circuit with intermediate circuit capacitor (16, 17, 24), a series resonant circuit (20) which is tuned to double the mains frequency and one or more self-commutated power inverters (25) for feeding one or more travel motors (26, 27) with variable voltage and frequency. When alternating voltage is supplied, each four-quadrant controller (14, 15) is connected to a separate secondary winding (6 to 9) of a transformer (4) and when direct voltage is supplied the four-quadrant controllers (14, 15) are used as d.c. chopper controllers. At least one secondary winding (6 to 9) of the transformer (4) is used as input filter choke when direct current is supplied. <IMAGE></p> |
