Frequency and operational characteristics of an ultra‐lightweight machine converting energy by magnetic resonance coupling
Frequency and operational characteristics of an ultra‐lightweight machine converting energy by magnetic resonance coupling
复制标题
通过磁共振耦合转换能量的超轻型机器的频率和运行特性
DOI：
10.1049/joe.2018.8185
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发表时间：
2019
影响因子：
--
通讯作者：
Kenta Takishima
中科院分区：
文献类型：
--
作者：
K. Sakai;Kenta Takishima
能够在三维空间中移动的电动飞行器在社会中创造了新的产业和应用。此外，电动飞机以最小的能量运行，排放量低。然而，电动飞机必须是超轻型的。为了生产用于电动飞机的超轻型机器，作者提出了一种通过磁共振耦合（MRC）在定子和转子之间转换电能的机器。该动作引起定子和转子的多相绕组之间的电磁谐振。电磁共振耦合技术允许电机在没有磁芯的情况下转换能量，从而允许生产超轻型机器。在这项研究中，作者描述了一个电机与三相绕组的MRC的基础上，讨论了其工作原理和MRC诱导的基本特性。对这种MRC机器的模型进行了磁分析，以评估其在旋转机器中的旋转能量转换，并了解其基本特性。作者的研究结果证实，没有磁芯的MRC电机可以在定子和转子之间转换磁能，并在功率因数为1.0时产生足够的起动转矩和功率。此外，该机器效率高，其扭矩随谐振频率增加而增加。
Electric aircrafts capable of moving in three dimensions cause creation of new industries and applications in society. Also, electric aircrafts operate on minimal energy with low emissions. However, an electric aircraft must be ultra-lightweight. To produce an ultra-lightweight machine for electric aircrafts, the authors proposed a machine in which electrical energy is converted between the stator and rotor through magnetic resonance coupling (MRC). This action causes electromagnetic resonance between the multiphase windings of the stator and rotor. Electromagnetic resonance coupling technology allows electrical machines to convert energy without a magnetic core, thereby allowing the production of ultra-lightweight machines. In this study, authors describe a machine with three-phase windings based on MRC and discuss its operating principles and the basic characteristics induced by MRC. A model of this MRC machine was subjected to magnetic analyses to assess its rotational energy conversion in a rotating machine and to understand its basic characteristics. Authors’ results confirmed that MRC machines without a magnetic core could convert magnetic energy between the stator and rotor and produce sufficient starting torque and power at a power factor of 1.0. Furthermore, the machine was highly efficient, and its torque increased with resonant frequency.