TY - JOUR
T1 - Feasibility study on a 400 kW-3600 rpm REBCO fully superconducting motor
AU - Iwakuma, Masataka
AU - Ogata, Toshiyuki
AU - Tomoda, Shinichiro
AU - Kisu, Takanobu
AU - Yoshida, Yutaka
AU - Ishiyama, Atsushi
AU - Yamada, Yutaka
AU - Izumi, Teruo
AU - Shiohara, Yuh
N1 - Funding Information:
Manuscript received September 05, 2011; accepted November 05, 2011. Date of publication November 23, 2011; date of current version May 24, 2012. This work was supported in part by New Energy and Industrial Technology Development Organization (NEDO) as part of the Rare Metal Substitute Materials Development Project. M. Iwakuma, T. Ogata, S. Tomoda, and T. Kisu are with the Research Institute of Superconductor Science and Systems, Kyushu University, Fukuoka 819-0395, Japan (e-mail: iwakuma@sc.kyushu-u.ac.jp). Y. Yoshida is with the Department of Energy Engineering and Science, Nagoya University, Nagoya 464-8603, Japan. A. Ishiyama is with the Faculty of Science and Engineering, Waseda University, Tokyo 169-8050, Japan. Y. Yamada, T. Izumik, and Y. Shiohara are with the Superconductivity Research Laboratory, ISTEC, Tokyo 135-0062, Japan. Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TASC.2011.2177229
PY - 2012
Y1 - 2012
N2 - We conceptually designed a 400 kW-3600 rpm synchronous motor with RE 1Ba 2Cu 3O 7-δ (RE: Rare earth, Y, Gd and so on, REBCO) superconducting tapes and studied the feasibility of fully superconducting ones. First the ac loss properties and the dependences of the critical current, I c, on temperature, T, magnetic field, B, and applied magnetic field angle, θ , of the REBCO tapes at 30 K to 77 K were measured. Next, 400 kW-3600 rpm fully superconducting motors were designed by taking into account of I c(B,T,θ) and then their properties, e.g. ac losses, efficiency, torque ripple and so on, were numerically calculated. According to the conventional theories, the induced ac losses in the armature windings exceeded several kW and the efficiency decreased rather than conventional normal motors. On the contrary, by taking account of the tremendous low-ac-loss properties of REBCO superconductors which were recently discovered as magnetic phase transition, the ac losses were reduced to around one hundredth. In consequence a feasible prospect of advantageous REBCO fully superconducting motors was obtained.
AB - We conceptually designed a 400 kW-3600 rpm synchronous motor with RE 1Ba 2Cu 3O 7-δ (RE: Rare earth, Y, Gd and so on, REBCO) superconducting tapes and studied the feasibility of fully superconducting ones. First the ac loss properties and the dependences of the critical current, I c, on temperature, T, magnetic field, B, and applied magnetic field angle, θ , of the REBCO tapes at 30 K to 77 K were measured. Next, 400 kW-3600 rpm fully superconducting motors were designed by taking into account of I c(B,T,θ) and then their properties, e.g. ac losses, efficiency, torque ripple and so on, were numerically calculated. According to the conventional theories, the induced ac losses in the armature windings exceeded several kW and the efficiency decreased rather than conventional normal motors. On the contrary, by taking account of the tremendous low-ac-loss properties of REBCO superconductors which were recently discovered as magnetic phase transition, the ac losses were reduced to around one hundredth. In consequence a feasible prospect of advantageous REBCO fully superconducting motors was obtained.
UR - http://www.scopus.com/inward/record.url?scp=84862575894&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84862575894&partnerID=8YFLogxK
U2 - 10.1109/TASC.2011.2177229
DO - 10.1109/TASC.2011.2177229
M3 - Article
AN - SCOPUS:84862575894
SN - 1051-8223
VL - 22
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
IS - 3
M1 - 5201204
ER -