In this paper a brushless dc motor propulsion system using synchronous motors is described which is suitable for transit applications. The propulsion system consists of a two quadrant transistorized front-end chopper and a three phase transistorized inverter (forming the electronic commutator for the synchronous machine phase currents) to provide both controlled propulsion and regenerative braking. The control scheme makes the system operate stably at all speeds and avoids loss of synchronization. Performance characteristics of the drive are derived and compared with those of a dc motor propulsion drive. Improved low speed performance and reduced torque pulsation are achieved by proper switching of the electronic commutators. A prototype model using a 5 hp synchronous motor is built and tested.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Brushless DC Motor Propulsion Using Synchronous Motors for Transit Systems


    Contributors:
    Pearson, W. R. (author) / Sen, P. C. (author)


    Publication date :

    1983-10-01


    Size :

    1386069 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




    Brushless Synchronous Propulsion Motor

    Collins, George C. / Slabiak, Walter | SAE Technical Papers | 1968


    Brushless synchronous propulsion motor

    Slabiak, W. / Collins, G.C. | Engineering Index Backfile | 1968



    Linear synchronous motor propulsion of small transit vehicles

    Thornton, R.D. / Clark, T. / Perreault, B. | IEEE | 2004