The doubly fed induction generator (DFIG) has been required to operate continuously when confronted with faults. For improving its fault ride through capability (FRT), a novel modified bridge-resistive-type superconducting fault current limiter (MBR-SFCL) is put forward in this paper. Compared with the conventional SFCL, the steady-state operating loss is reduced, and the resistance value can be controlled. The model, operation principles, and control scheme of MBR-SFCL are described. The comparative analysis between the proposed MBR-SFCL and conventional SFCL in the DFIG system is studied. All the critical variables of the DFIG system can be kept in domain. The simulation results show that the proposed limiter can improve the voltage ride-through capability of DFIG during the fault and post-fault process.

中文翻译：

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采用改进的桥阻型 SFCL 提高双馈风力发电机的 LVRT 能力


双馈感应发电机（DFIG）需要在遇到故障时连续运行。为了提高其故障穿越能力（FRT），本文提出了一种新型改进的桥阻式超导故障限流器（MBR-SFCL）。与传统SFCL相比，稳态运行损耗降低，电阻值可控制。描述了MBR-SFCL的模型、工作原理和控制方案。研究了 DFIG 系统中所提出的 MBR-SFCL 与传统 SFCL 的比较分析。 DFIG 系统的所有关键变量都可以保存在域中。仿真结果表明，所提出的限制器可以提高双馈电机故障期间和故障后过程中的电压穿越能力。