An asynchronous traction system supplied from a single-phase main power supply unit incorporating a voltage drop device and an apparatus of this kind

摘要

The present invention relates to an asynchronous traction system supplied from a single-phase main power supply, and more particularly to an asynchronous traction system supplied from a single-phase main power supply incorporating a voltage drop device and an apparatus of this kind, By providing a voltage drop device for use in an asynchronous traction system that is supplied from the single phase main power supply of the present invention, the over-rating of the insulator and the routing distance are not disturbed and the thermal resistance of the semiconductor cooling system is not increased.;For this purpose, the invention comprises at least one pair of forced current commutated single phase rectifiers (1,2 or 1,6) connected to the auxiliary winding (3, 4 or 3, 5) of the primary traction transformer , Wherein the power is passed through the primary traction transformer (T) and exits the DC main power supply and is supplied to the secondary winding (1) by a forced communication single phase rectifier (6) operating as a voltage increasing control rectifier 5), and the other forced current single-phase rectifiers (1,2) operate as synchronous voltage inverters.;Therefore, the voltage drop device of the present invention is applicable to a unique rail traction field and a synchronous traction system that are not exclusive.