国外空间磁场耦合式近场无线能量传输技术发展分析

Analysis of the development of magnetic field coupled wireless power transfer technology

磁场耦合式近场无线能量传输具有高效率、非接触、无金属触点裸露等优点,对于解决空间非接触供电具有重要应用前景。为了推进空间磁场耦合式近场无线能量传输相关技术的研发和成果转化,文章重点梳理了国外在空间磁场耦合式近场无线能量传输技术的发展路线图,调研近十五年来已经开展的演示验证或技术示范项目,分析国外关键技术方案及指标,提出航天器内设备间厘米级范围内优先采用感应耦合式无线能量传输、航天器间几十厘米到米级范围优先采用谐振耦合式无线能量传输、传输功率需提升至千瓦级以上、传输效率优于85%的发展建议,为未来发展空间磁场耦合式近场无线能量传输技术提供指导。

Magnetic coupled wireless power transfer has the advantages of high efficiency,non-contact,and no exposed metal contacts,which has important application prospects for solving non-contact power supply in space.In order to promote the research and development of space magnetic coupled wireless power transfer related technologies and the transformation of achievements,this paper focuses on sorting out the development roadmap of space magnetic field coupled near-field wireless energy transmission technology in foreign countries,researching demonstration or technical demonstration projects that have been carried out in the past fifteen years,analyzing key technical solutions and indicators in foreign countries,and proposing development suggestions for prioritizing the use of induction coupled wireless energy transmission with distance of centimeter level between equipments within spacecraft,and resonant coupled wireless energy transmission with distance from tens of centimeters to meters level between spacecrafts,transmission power with the ability of above kilowatt,and transmission efficiency with above 85%,providing guidance for the future development of space magnetic field coupled near-field wireless energy transmission technology.