Abstract
In this paper, a bridge-type high temperature superconducting (HTS) fault current limiter (FCL) is presented. The working principle of this HTS FCL is analyzed in detail. Two anti-parallel coils which are made of HTS tapes are main parts of the FCL. The superconducting FCL (SFCL) has no influence on power system in normal working state because the equivalent resistance and inductance of the SFCL are very small. However when a fault occurs, the SFCL may provide large resistance and inductance to limit the fault current due to quench of one coil. Considering heat is generated in one of coils when superconducting/normal (S/N) transition occurs, the coil can be isolated before too much heat is generated. The design of the SFCL is carried out, and simulation computation and analysis were completed so as to verify the SFCL design. The results reveal that the bridge-type HTS FCL has rapid response to limit fault current.
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