Ultralightweight motor design using electromagnetic resonance coupling

摘要

To produce an ultra-lightweight motor, we propose a technology that converts electrical energy between the stator and rotor using magnetic coupling. Magnetic coupling causes electromagnetic resonance between the respective multiphase windings of the stator and rotor. Electromagnetic resonance coupling technology allows electric motors to convert energy without magnetic cores, significantly reducing their overall weight. In this study, we proposed a motor design based on magnetic resonance coupling (MRC) and described its operating principles and characteristics. A model of the proposed MRC motor was analyzed using magnetic analysis to verify its rotational energy conversion and understand its fundamental characteristics. Our results confirmed that the proposed MRC motor without a magnetic core is capable of converting electromagnetic energy between the stator and rotor and producing sufficient operating torque.