期刊
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
卷 31, 期 8, 页码 -出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TASC.2021.3094448
关键词
AC Loss; high-temperature superconductor (HTS); power system; saturated iron-core superconducting fault current limiter (SI-SFCL); voltage source converter (VSC)
This paper evaluates the loss level of saturated iron-core FCLs (SI-SFCLs) in a VSC-based distribution grid and analyzes the power dissipation during short-circuit, demonstrating the potential of reaching tens of kilowatts. The study provides helpful guidance for the design of SI-SFCLs.
The potential application of the superconducting fault current limiter (SFCL) in a voltage source convert (VSC) system has received lots of attention. On the basis of the fault current limiting characteristics, this paper evaluated the loss level of saturated iron-core FCLs (SI-SFCLs) in a VSC-based distribution grid. The models of VSC network and the SI-SFCL model were respectively developed. Then, with and without the implementation of SI-SFCLs, the fault current process under positive-to-ground and positive-to-negative short-circuit was presented. Next, the power dissipated from the superconducting coil was curved. Analysis demonstrated the power dissipation of the SI-SFCL during the short-circuit is likely to reach tens of kilowatts. This study can provide a helpful guidance for the design of SI-SFCLs.
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