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A feasibility study of an 8‐MWh flywheel‐type power storage system using oxide superconductors
Author(s) -
Higasa Hiromasa,
Ishikawa Fumihiko,
Shibayama Motoaki,
Ono Takeshi,
Yokoyama Shoichi,
Nakamura Shirou,
Yamada Tadatoshi,
Yoshida Yasuo
Publication year - 1994
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.4391140703
Subject(s) - flywheel , flywheel energy storage , magnet , materials science , bearing (navigation) , power (physics) , superconductivity , magnetic bearing , superconducting magnet , energy storage , neodymium magnet , oxide , electrical engineering , automotive engineering , nuclear engineering , mechanical engineering , engineering , computer science , physics , condensed matter physics , metallurgy , thermodynamics , artificial intelligence
When combined with a magnet having a magnetic field gradient (for example, a permanent magnet), a Y‐based oxide superconductor is capable of forming a noncontact bearing with a strong levitational force. Since this bearing exhibits low rotational loss, it is very likely to form a highly efficient power storage system in combination with a flywheel. In this paper, an 8‐MWh power storage system utilizing a flywheel was designed conceptually to examine its applicability and the possible effects of its introduction. It was found that this system was an effective power storage.