2024/12/19 by Goki Kawasaki, Kazuki Nakamura, Yudai Kimura +8
Engineering · Physics and Astronomy · #Superconducting Materials and Applications #Electric Motor Design and Analysis #Magnetic confinement fusion research
paper · doi:10.1109/tasc.2024.3520549
Fully superconducting rotating machines with superconducting armature and field coils hold significant potential as electric propulsion systems for aircraft owing to their high power density (kg/kW). To support large current capacities in the superconducting armature coils of these motors, a multi-strand parallel conductor design was developed. Further, this study aimed to develop an optimum conductor design capable of incorporating any number of parallel conductors. To achieve this, three-strand parallel conductors were used. It was demonstrated that a uniform current distribution can be achieved using a novel transposition method within the winding. Herein, the winding process for this transposition method was developed to apply the desired configuration. The experimentally obtained current distributions of 33.4%, 35.2%, and 31.4% confirm the effectiveness of this method.