Experimental Evaluation of 1 kW-class Prototype REBCO Fully Superconducting Synchronous Motor Cooled by Subcooled Liquid Nitrogen for E-Aircraft

Hiromasa Sasa; Masataka Iwakuma; Koichi Yoshida; Seiki Sato; Teruyoshi Sasayama; Takashi Yoshida; Kaoru Yamamoto; Shun Miura; Akifumi Kawagoe; Teruo Izumi; Akira Tomioka; Masayuki Konno; Yuichiro Sasamori; Hirokazu Honda; Yoshiji Hase; Masao Syutoh; Sergey Lee; Shinya Hasuo; Miyuki Nakamura; Takayo Hasegawa; Yuhji Aoki; Takahiro Umeno

doi:10.1109/TASC.2021.3055452

Experimental Evaluation of 1 kW-class Prototype REBCO Fully Superconducting Synchronous Motor Cooled by Subcooled Liquid Nitrogen for E-Aircraft

Hiromasa Sasa, Masataka Iwakuma, Koichi Yoshida, Seiki Sato, Teruyoshi Sasayama, Takashi Yoshida, Kaoru Yamamoto, Shun Miura, Akifumi Kawagoe, Teruo Izumi, Akira Tomioka, Masayuki Konno, Yuichiro Sasamori, Hirokazu Honda, Yoshiji Hase, Masao Syutoh, Sergey Lee, Shinya Hasuo, Miyuki Nakamura, Takayo HasegawaYuhji Aoki, Takahiro Umeno

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

For the development of electric propulsion aircrafts with light weight, low emission and high efficiency, MW-class fully superconducting synchronous machines operating at liquid nitrogen temperature were conceptually designed with REBa2Cu3O7-δ (REBCO) superconducting tapes in our previous studies. To verify the actualization of the structure and cooling method, a 1 kW-class prototype fully superconducting synchronous motor was designed and constructed in this study. The fixed armature was cooled with subcooled liquid nitrogen at 65 K. The rotor was cooled with helium gas. The pole number was two for the future high speed operation. The applicability of the complicated casing structure with three chambers into fully superconducting motor was also investigated from the viewpoint of thermal insulation. The operations as a motor up to 500 rpm and a generator demonstrated that the designed structure and cooling method were reasonable and effective for cooling the fixed armature and rotating field windings.

Original language	English
Article number	9340374
Journal	IEEE Transactions on Applied Superconductivity
Volume	31
Issue number	5
DOIs	https://doi.org/10.1109/TASC.2021.3055452
Publication status	Published - Aug 2021

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1109/TASC.2021.3055452

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Sasa, H., Iwakuma, M., Yoshida, K., Sato, S., Sasayama, T., Yoshida, T., Yamamoto, K., Miura, S., Kawagoe, A., Izumi, T., Tomioka, A., Konno, M., Sasamori, Y., Honda, H., Hase, Y., Syutoh, M., Lee, S., Hasuo, S., Nakamura, M., ... Umeno, T. (2021). Experimental Evaluation of 1 kW-class Prototype REBCO Fully Superconducting Synchronous Motor Cooled by Subcooled Liquid Nitrogen for E-Aircraft. IEEE Transactions on Applied Superconductivity, 31(5), [9340374]. https://doi.org/10.1109/TASC.2021.3055452

Sasa, H , Iwakuma, M, Yoshida, K, Sato, S, Sasayama, T , Yoshida, T , Yamamoto, K , Miura, S, Kawagoe, A, Izumi, T, Tomioka, A, Konno, M, Sasamori, Y, Honda, H, Hase, Y, Syutoh, M, Lee, S, Hasuo, S, Nakamura, M, Hasegawa, T, Aoki, Y & Umeno, T 2021, 'Experimental Evaluation of 1 kW-class Prototype REBCO Fully Superconducting Synchronous Motor Cooled by Subcooled Liquid Nitrogen for E-Aircraft', IEEE Transactions on Applied Superconductivity, vol. 31, no. 5, 9340374. https://doi.org/10.1109/TASC.2021.3055452

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abstract = "For the development of electric propulsion aircrafts with light weight, low emission and high efficiency, MW-class fully superconducting synchronous machines operating at liquid nitrogen temperature were conceptually designed with REBa2Cu3O7-δ (REBCO) superconducting tapes in our previous studies. To verify the actualization of the structure and cooling method, a 1 kW-class prototype fully superconducting synchronous motor was designed and constructed in this study. The fixed armature was cooled with subcooled liquid nitrogen at 65 K. The rotor was cooled with helium gas. The pole number was two for the future high speed operation. The applicability of the complicated casing structure with three chambers into fully superconducting motor was also investigated from the viewpoint of thermal insulation. The operations as a motor up to 500 rpm and a generator demonstrated that the designed structure and cooling method were reasonable and effective for cooling the fixed armature and rotating field windings. ",

author = "Hiromasa Sasa and Masataka Iwakuma and Koichi Yoshida and Seiki Sato and Teruyoshi Sasayama and Takashi Yoshida and Kaoru Yamamoto and Shun Miura and Akifumi Kawagoe and Teruo Izumi and Akira Tomioka and Masayuki Konno and Yuichiro Sasamori and Hirokazu Honda and Yoshiji Hase and Masao Syutoh and Sergey Lee and Shinya Hasuo and Miyuki Nakamura and Takayo Hasegawa and Yuhji Aoki and Takahiro Umeno",

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AU - Yoshida, Koichi

AU - Sato, Seiki

AU - Sasayama, Teruyoshi

AU - Yoshida, Takashi

AU - Yamamoto, Kaoru

AU - Miura, Shun

AU - Kawagoe, Akifumi

AU - Izumi, Teruo

AU - Tomioka, Akira

AU - Konno, Masayuki

AU - Sasamori, Yuichiro

AU - Honda, Hirokazu

AU - Hase, Yoshiji

AU - Syutoh, Masao

AU - Lee, Sergey

AU - Hasuo, Shinya

AU - Nakamura, Miyuki

AU - Hasegawa, Takayo

AU - Aoki, Yuhji

AU - Umeno, Takahiro

PY - 2021/8

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N2 - For the development of electric propulsion aircrafts with light weight, low emission and high efficiency, MW-class fully superconducting synchronous machines operating at liquid nitrogen temperature were conceptually designed with REBa2Cu3O7-δ (REBCO) superconducting tapes in our previous studies. To verify the actualization of the structure and cooling method, a 1 kW-class prototype fully superconducting synchronous motor was designed and constructed in this study. The fixed armature was cooled with subcooled liquid nitrogen at 65 K. The rotor was cooled with helium gas. The pole number was two for the future high speed operation. The applicability of the complicated casing structure with three chambers into fully superconducting motor was also investigated from the viewpoint of thermal insulation. The operations as a motor up to 500 rpm and a generator demonstrated that the designed structure and cooling method were reasonable and effective for cooling the fixed armature and rotating field windings.

AB - For the development of electric propulsion aircrafts with light weight, low emission and high efficiency, MW-class fully superconducting synchronous machines operating at liquid nitrogen temperature were conceptually designed with REBa2Cu3O7-δ (REBCO) superconducting tapes in our previous studies. To verify the actualization of the structure and cooling method, a 1 kW-class prototype fully superconducting synchronous motor was designed and constructed in this study. The fixed armature was cooled with subcooled liquid nitrogen at 65 K. The rotor was cooled with helium gas. The pole number was two for the future high speed operation. The applicability of the complicated casing structure with three chambers into fully superconducting motor was also investigated from the viewpoint of thermal insulation. The operations as a motor up to 500 rpm and a generator demonstrated that the designed structure and cooling method were reasonable and effective for cooling the fixed armature and rotating field windings.

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Experimental Evaluation of 1 kW-class Prototype REBCO Fully Superconducting Synchronous Motor Cooled by Subcooled Liquid Nitrogen for E-Aircraft

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