Modern drive engineering in electric railroads is characterized today by the use of power electronics. Two systems are available for vehicles in rapid transit systems - such as streetcars, municipal railroads and subways - which are all DC operated: 1. DC chopper control system, in which conventional traction motors of DC series-wound design are controlled by DC chopper, and 2. Three-phase systems in which the traction motor is a three-phase induction machine with a squirrel-cage rotor, fed by a current source DC link converter. The DC chopper system is already in wide use today in rapid transit vehicles, whereas three-phase traction motors are only now coming into service in the first series-produced vehicles. The present paper deals with the circuit arrangements, furnishes data on the reliability of the equipment, and comments on their compatibility with communications and signalling equipment.


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    Title :

    Advanced Propulsion Systems with Power Electronics, DC- and AC-Drives for Rapid Transit Systems, Operation Experience


    Contributors:


    Publication date :

    1981-10-01


    Size :

    556799 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English