TY - JOUR
T1 - Lightweight Design of Tens-MW Fully-Superconducting Wind Turbine Generators with High-Performance REBa2Cu3Oy Wires
AU - Miura, Shun
AU - Iwakuma, Masataka
AU - Izumi, Teruo
N1 - Funding Information:
Manuscript received September 22, 2019; accepted March 2, 2020. Date of publication March 9, 2020; date of current version March 25, 2020. This work was supported in part by Nagamori Foundation 2018 and 2019, in part by the Japan Society for the Promotion of Science (JSPS): Grant-in-Aid-for Scientific Research under Grants JP19K14964 and JP18H03783, and in part by the Japan Science and Technology Agency (JST): Advanced Low Carbon Technology Research and Development Program (ALCA). (Corresponding author: Shun Miura.) Shun Miura and Masataka Iwakuma are with the Institute of Superconductor Systems, Kyushu University, Fukuoka 819-0395, Japan (e-mail: miura@sc.kyushu-u.ac.jp).
PY - 2020/6
Y1 - 2020/6
N2 - 15 MW-class Direct-drive fully-superconducting generators for offshore floating wind turbine generators were conceptually designed. High-performance EuBa2Cu3Oy (EuBCO) superconducting wires with a large in-field critical current were employed, which can reduce the wire length of the generators. The design study showed good electromagnetic properties: high efficiency of 96.5%, and a low synchronous reactance of 0.4 p.u. The total weight of the superconducting generators including support structures was assumed as ∼98 tons, which is much lighter than partially-superconducting generators and conventional generators. Furthermore, our superconducting generator satisfied the cost requirement due to employing high-performance EuBCO wires and reducing field winding length by a unique casing structure. In conclusion, the fully-superconducting generators have a great advantage, especially for a tens-MW wind turbine system.
AB - 15 MW-class Direct-drive fully-superconducting generators for offshore floating wind turbine generators were conceptually designed. High-performance EuBa2Cu3Oy (EuBCO) superconducting wires with a large in-field critical current were employed, which can reduce the wire length of the generators. The design study showed good electromagnetic properties: high efficiency of 96.5%, and a low synchronous reactance of 0.4 p.u. The total weight of the superconducting generators including support structures was assumed as ∼98 tons, which is much lighter than partially-superconducting generators and conventional generators. Furthermore, our superconducting generator satisfied the cost requirement due to employing high-performance EuBCO wires and reducing field winding length by a unique casing structure. In conclusion, the fully-superconducting generators have a great advantage, especially for a tens-MW wind turbine system.
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U2 - 10.1109/TASC.2020.2979157
DO - 10.1109/TASC.2020.2979157
M3 - Article
AN - SCOPUS:85082997528
SN - 1051-8223
VL - 30
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
IS - 4
M1 - 9028170
ER -