Observation of Transient Behavior of Magnetic Flux in Inductive-type Fault Current Limiter with YBCO Thin Film Disc

Recently, the installation of fault current limiters (FCLs) in power systems is expected for controlling large short circuit currents. In this study, we focus on inductive-type FCLs having a YBCO superconducting thin film disc that is fabricated by metal-organic deposition. AC currents were injected...

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Bibliographic Details
Main Authors: Higuchi, Kosuke, Guan, Yin, Yokomizu, Yasunobu, Matsumura, Toshiro
Format: Conference Proceeding
Language:English
Subjects:
Fault current limiter
Impedance
Magnetic flux
Pick-up coil
Power system stability
Superconductivity
YBCO
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Summary:Recently, the installation of fault current limiters (FCLs) in power systems is expected for controlling large short circuit currents. In this study, we focus on inductive-type FCLs having a YBCO superconducting thin film disc that is fabricated by metal-organic deposition. AC currents were injected into the FCL so that the periodic transient behavior of the apparent magnetic flux density around the FCL could be measured by using a pick-up coil. The magnetic flux density exhibited hysteresis when AC current was injected into the FCL. The transition between the conducting states in the YBCO layer was explained by the hysteresis relationship between the magnetic flux density and current.
ISSN:1875-3892
1875-3892
DOI:10.1016/j.phpro.2012.06.285