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  • analysis on the potential application in future spaceflight of a contact-less power transfer system

    Paper number



    Dr. Dong Jiping, China Academy of Space Technology (CAST), China



    Most electrical equipments aground and in space get the energy through plugs from sources,this kind of energy transmission system is efficient and accepted widely.But it is unsafe at some special circumstance such as undersea applications,virose or flammable environments.
        In recent years,a contact-less power transmission system using detachable transformer,which is spark free and no uncocered conduct is developed and used gradually in many fields such as power supply for crane,and assembly line in industry,electrical traffic system in cities,elevator shafts for piles,electrical equipments indoors,biologic and medicinal wiring,even charging for mobile phone.  
       The paper describes the mechanism of a contact-less power transmission system with the method of equivalent circuit,and as a prospect,the application of the new technology in spaceflight such as power supply of ordinary satellite(considering that quite a number of satellites failed on account of power supply system),different electric apparatuses of a satellite with voluminous and baroque configuration,charging for landing machine on the Moon,Mars and other celestial body and so on is analyzed.
      Because of the special environments for spaceflight,some problems such as the selection of frequency,electromagnetic compatibility with satellite,improving of power supply efficiency is also discussed in the paper.
      Beyond all doubt,the contact-less power transmission system is not only convenient and flexible,but also compact.Still,there is some insufficiency with the contact-less power transmission system.A evident shortage is the existence of leak magnetic field. So it is also discussed about how to minish the leak magnetic field and interrelated thermal control technology in the paper.
    Abstract document


    Manuscript document