The asynchronous squirrel-cage motor has always been considered ideal for traction purposes. However, the inevitable frequency conversion equipment, the inverter, has been commercially reasonable only since the mid seventies. The progress in power semiconductors and inverter control have been crucial for the break-through. Though the control equations were difficult to implement with analog circuits, good results were achieved in Helsinki metro, Rotterdam light rail vehicles and elsewhere. In recent years more and more analog functions have been replaced by digital circuits and microprocessors. This has led to a totally digital control system, which was used for the first time in the Finnish State Railway's Dr 16 locomotive and later in the Series 3000 railcar of the State Transport Authority of South Australia. Though the digital control does much the same tasks as its analog predecessor, the operational principles and strategies are totally different in some cases.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Control of a three-phase traction drive


    Additional title:

    Regelung eines Drehstrom-Asynchronmotors in einer Diesel-Elektrolokomotive


    Contributors:


    Publication date :

    1987


    Size :

    5 Seiten, 8 Bilder, 8 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Wheel creep control for the three-phase traction drive

    Buscher, M. / Pfeiffer, R. / Schwartz, H.-J. | British Library Online Contents | 1993


    ASYNCHRONOUS TRACTION DRIVE CONTROL DEVICE

    MNATSAKANOV VALERIJ ALEKSANDROVICH | European Patent Office | 2020

    Free access

    TRACTION ELECTRIC DRIVE

    LITVINENKO ALEKSANDR MIKHAJLOVICH / NOVIKOV ANDREJ EGOROVICH / BARANOV DENIS SERGEEVICH | European Patent Office | 2021

    Free access

    LOCOMOTIVE TRACTION DRIVE

    SLIVINSKIJ EVGENIJ VASILEVICH / KISELEV VALENTIN IVANOVICH / LAZAREV VYACHESLAV YUREVICH | European Patent Office | 2019

    Free access

    Traction control for front-wheel drive

    Yamaguchi,J. / Honda Motor,JP | Automotive engineering | 1990