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.

中文翻译：

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VSC 网络的饱和铁芯超导故障限流器：带损耗分析的系统建模

超导故障限流器 (SFCL) 在电压源转换 (VSC) 系统中的潜在应用受到了广泛关注。基于故障限流特性，本文评估了基于VSC的配电网中饱和铁芯FCL（SI-SFCL）的损耗水平。分别建立了VSC网络模型和SI-SFCL模型。然后，介绍了在实施和不实施SI-SFCLs的情况下，正对地和正对负短路情况下的故障电流过程。接下来，从超导线圈消耗的功率被弯曲。分析表明，SI-SFCL在短路期间的功耗很可能达到几十千瓦。本研究可为SI-SFCLs的设计提供有益的指导。