TY - JOUR
T1 - Application of superconducting magnetic bearings to a 10 kWh-class flywheel energy storage system
AU - Ichihara, Takumi
AU - Matsunaga, Koji
AU - Kita, Makoto
AU - Hirabayashi, Izumi
AU - Isono, Masayuki
AU - Hirose, Makoto
AU - Yoshii, Keiji
AU - Kurihara, Kazuaki
AU - Saito, Osamu
AU - Saito, Shinobu
AU - Murakami, Masato
AU - Takabayashi, Hirohumi
AU - Natsumeda, Mitsutoshi
AU - Koshizuka, Naoki
N1 - Funding Information:
Manuscript received October 4, 2004. This work was supported by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Superconducting Bearing Technologies for Flywheel Energy Storage System. T. Ichihara, M. Kita, I. Hirabayashi, and N. Koshizuka are with the Superconductivity Research Laboratory, ISTEC, Tokyo 135-0062, Japan (e-mail: ichi-hara@istec.or.jp). K. Matsunaga was with the SRL, ISTEC. He is now with Shikoku Electric Power Company, Inc. (e-mail: matsunaga12782@yonden.co.jp). M. Isono, M. Hirose, and K. Yoshii are with the Shikoku Research Institute Inc., Kagawa 761-0192, Japan (e-mail: m-isono@ssken.co.jp). K. Kurihara, O. Saito, and S. Saito are with Ishikawajima-Harima Heavy Industries Company, Ltd., Yokohama 235-8501, Japan (e-mail: kazuaki_kuri-hara@ihi.co.jp). M. Murakami is with Shibaura Institute of Technology, Tokyo 108-8548, Japan (e-mail: masatomu@sic.shibaura-it.ac.jp). H. Takabayashi and M. Natsumeda are with NEOMAX Company, Ltd., Osaka 618-0013, Japan (e-mail: TAKABAYASHI.H@neomax.co.jp). Digital Object Identifier 10.1109/TASC.2005.849622 Fig. 1. Schematic view of the 10 kWh-class flywheel energy storage test system developed in this project.
PY - 2005/6
Y1 - 2005/6
N2 - Radial type superconducting magnetic bearings have been developed for a 10 kWh-class flywheel energy storage system. The bearings consist of an inner-cylindrical stator of YBCO bulk superconductors and an outer-rotor of permanent magnets. The rotor is suspended without contact via the pinning forces of the bulk superconductors that are arranged such that the c-axis of each superconductor is aligned parallel to the radial direction of the cylinder. In this paper, we describe the implementation of the stator part and report the SMB test results, namely that the rotor was successfully rotated at up to 7,500 rpm. Thus we succeeded in energy storage of 2.24 kWh.
AB - Radial type superconducting magnetic bearings have been developed for a 10 kWh-class flywheel energy storage system. The bearings consist of an inner-cylindrical stator of YBCO bulk superconductors and an outer-rotor of permanent magnets. The rotor is suspended without contact via the pinning forces of the bulk superconductors that are arranged such that the c-axis of each superconductor is aligned parallel to the radial direction of the cylinder. In this paper, we describe the implementation of the stator part and report the SMB test results, namely that the rotor was successfully rotated at up to 7,500 rpm. Thus we succeeded in energy storage of 2.24 kWh.
KW - Flywheel energy storage system
KW - Pinning force
KW - Radial type superconducting magnetic bearings
KW - YBCO bulk superconductors
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U2 - 10.1109/TASC.2005.849622
DO - 10.1109/TASC.2005.849622
M3 - Article
AN - SCOPUS:22144471161
VL - 15
SP - 2245
EP - 2248
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
SN - 1051-8223
IS - 2 PART II
ER -