Article | REF: D5530 V1

Electrical engineering components for rail traction

Authors: Pierre CHAPAS, Marc DEBRUYNE

Publication date: November 10, 2004

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2. Power generation

In autonomous traction, energy is generated by an internal combustion engine. . The most frequently used is the turbocharged diesel engine, although turbochargers are also used in a few cases. Electrical drive is provided by a three-phase alternator, coupled to the diesel engine's crankshaft. Auxiliary power is supplied by :

  • or via a dedicated winding wound on the alternator stator;

  • an auxiliary alternator flange-mounted on the main alternator.

The main alternator delivers three-phase voltage at variable frequency and voltage, rectified by a three-phase diode bridge.

Today's power schemes generally use induction motors powered by IGBT inverters. These are identical in every respect to those used in electric traction....

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