LEO Satellites equipped with high-power microwave payloads bring special demands for fast charging of Lithium ion battery. However, charging polarization occurs in traditional constant current-constant voltage strategy for Li-ion battery, following by comparative long charging time. To realize fast charging of batteries, novel Li-ion battery fast charge topology and principle were present based on Mas Laws, which adopted multi-step constant current charging and fixed limit discharging in one charging cycle. The strategy was provided with many advances, such as de-polarization for charging voltage, raising acceptable charging current and no-intervening battery cycle life. Model of S3R (Sequential Switching Shunt Regulator) unregulated primary EPS(electrical power system) was built in MATLAB/SIMULINK, in which simulations and analysis were processed. Results shown using above fast charging strategy could save over 56% charging time, as well as avoiding charging polarization. New in-orbit charging ideas for future space Li-ion battery could be obtained from the paper.


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    Titel :

    Multi-step constant current fast charging topology and principle simulation for LEO satellite


    Beteiligte:
    Wenli, Lin (Autor:in) / Haitao, Sun (Autor:in) / Xinjun, Liu (Autor:in) / Changjiang, Zhao (Autor:in) / Linchun, Fu (Autor:in)


    Erscheinungsdatum :

    01.07.2017


    Format / Umfang :

    265509 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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