Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 2245-2248 |
| Number of pages | 4 |
| Journal | IEEE Transactions on Applied Superconductivity |
| Volume | 15 |
| Issue number | 2 PART II |
| DOIs | |
| Publication status | Published - 2005 Jun |
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Keywords
- Flywheel energy storage system
- Pinning force
- Radial type superconducting magnetic bearings
- YBCO bulk superconductors
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Physics and Astronomy (miscellaneous)
Cite this
Application of superconducting magnetic bearings to a 10 kWh-class flywheel energy storage system. / Ichihara, Takumi; Matsunaga, Koji; Kita, Makoto; Hirabayashi, Izumi; Isono, Masayuki; Hirose, Makoto; Yoshii, Keiji; Kurihara, Kazuaki; Saito, Osamu; Saito, Shinobu; Murakami, Masato; Takabayashi, Hirohumi; Natsumeda, Mitsutoshi; Koshizuka, Naoki.
In: IEEE Transactions on Applied Superconductivity, Vol. 15, No. 2 PART II, 06.2005, p. 2245-2248.Research output: Contribution to journal › Article
}
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
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
UR - http://www.scopus.com/inward/record.url?scp=22144471161&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=22144471161&partnerID=8YFLogxK
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 -