Paper outlines a case study on optimal control of a brushless direct-current (BLDC) motor, operating as an Integrated Starter Generator (ISG) in a micro hybrid propulsion system for motorcycles. Main research focus is optimization of BLDC machine torque characteristics, particularly in starter operation mode, in order to improve cranking of the internal combustion engine (ICE) at various operation conditions. Stringent cranking torque demands, limited physical dimensions of the electrical machine and a wide rotational speed range of prototype ICE are most challenging reasons for the exhaustive study of applicable control algorithms in the low rpm range. Two approaches for optimization of torque characteristics are discussed, common known flux-weakening method and the modification of power-switch conduction angle, respectively. The evaluation of most relevant control approaches is based on computer simulation and prototype set-up measurements. As a result a novel control principle is proposed which includes both of the above discussed approaches. Experimental results fully confirm improvements in the starting procedure of the hybrid propulsion.


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    Titel :

    Torque Characteristic Optimization of a Brushless DC Motor Based Integrated Starter-Generator


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Pevec, Bostjan (Autor:in) / Miljavec, Damijan (Autor:in) / Golob, Jure (Autor:in) / Ursic, Peter (Autor:in) / Bajec, Primoz (Autor:in)

    Kongress:

    SAE World Congress & Exhibition ; 2009



    Erscheinungsdatum :

    2009-04-20




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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