非厄米物理启发的高效无线电能传输  

Efficient wireless power transfer inspired by non-Hermitian physics

作　　者：郭志伟[1] 陈鸿[1] GUO Zhi-Wei;CHEN Hong(School of Physics Science and Engineering,Tongji University,Shanghai 200092,China)

机构地区：[1]同济大学物理科学与工程学院,上海200092

出　　处：《物理》2024年第1期33-41,共9页Physics

基　　金：国家重点基础研究发展计划(批准号:2021YFA1400602,2023YFA1407600);国家自然科学基金(批准号:12004284,12374294)资助项目;上海市教育发展基金和上海市教育委员会“晨光计划”项目(批准号:21CGA22)。

摘　　要：无线电能传输技术是指不需要线缆或者波导结构,利用电磁波直接将电能从电源传输到负载的技术。作为能量传输的一种全新方式,无线电能传输技术可以极大地提高供电设备的安全性、可靠性和便捷性,其在消费电子行业、自动化工业车间以及人工智能平台等需要高自由度供能的场景中具有重要的应用价值。目前无线电能传输技术仍存在一定的局限性,特别是对于广为关注的磁共振耦合无线电能传输技术,面临着高效率和稳定性难以兼顾的巨大挑战。文章以近场无线电能传输技术为研究框架,深入介绍非厄米新物理在无线电能传输系统中的调控机理,及其在高效、稳定、待机功率损耗、电磁环境兼容等方面的突出优势,最后对无线电能传输未来的研究方向进行了展望。Wireless power transfer refers to the use of electromagnetic waves to directly transmit energy from a source to loads without the need for cables or waveguide structures.As a new way of energy transfer and utilization,this technology can greatly improve the safety,reliability,and convenience of power devices,and may be applied in scenarios that require a high degree of freedom,such as consumer electronics,automated industrial workshops,and artificial intelligence platforms.Nevertheless,there are some limitations;in particular,magnetic resonance wireless power transfer,the technology of prime interest,still faces significant challenges in balancing efficiency and stability.Within the framework of near-field resonance wireless power transfer,this paper describes the control mechanism of non-Hermitian physics,as well as its outstanding advantages with regard to efficiency,stability,idle power loss,electromagnetic environment compatibility,and other aspects.Finally,the future research directions of wireless power transfer technology are summarized.

关 键 词：非厄米物理 宇称—时间对称 连续域束缚态 无线电能传输 

分 类 号：TM724[电气工程—电力系统及自动化]