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Tentative design and evaluation of a high‐temperature superconducting generator
Author(s) -
Kanamori Yasuo,
Yamada Masato,
Hasegawa Kiyoshi,
Nakamura Hideyuki,
Arata Masanori,
Nishimura Mariko
Publication year - 2002
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.10052
Subject(s) - superconducting electric machine , superconductivity , electromagnetic coil , liquid helium , generator (circuit theory) , materials science , liquid nitrogen , electrical engineering , electrical conductor , high temperature superconductivity , engineering physics , nuclear engineering , superconducting magnetic energy storage , mechanical engineering , superconducting magnet , condensed matter physics , engineering , physics , helium , thermodynamics , power (physics) , atomic physics , quantum mechanics
Studies on superconducting generators have been carried out worldwide. Especially in Japan, it is worthy of attention that Super‐GM led the national project concerning the successful development of the 70 MW‐class superconducting generators. Low‐temperature superconducting wires have been applied to field windings of generators. In Japan, the next‐generation coated conductors, namely, high‐temperature superconducting wires, have proceeded under the national project supported by NEDO. Provided that the next‐generation coated conductors are applied to field windings, the weight and volume of superconducting generators will be reduced. Furthermore, using liquid nitrogen as a coolant instead of liquid helium, the reliability of high‐temperature superconducting generators is expected to improve. This paper provides tentative designs of a high‐temperature superconducting generator whose field windings are composed of YBa 2 Cu 3 O 7− x wires. By comparison with the low‐temperature superconducting generator developed by Super‐GM, the usefulness of the high‐temperature superconducting generator is discussed. © 2002 Wiley Periodicals, Inc. Electr Eng Jpn, 141(1): 1–7, 2002; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/eej.10052