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Improving fault ride-through capability of DFIG based wind generators by using bridge-type superconducting fault current limiter

机译：通过使用桥式超导故障限流器提高基于DFIG的风力发电机的故障穿越能力

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This paper proposes series connection of a diode bridge-type superconducting fault current limiter (SFCL) with rotor side converter (RSC) of a double fed induction generator (DFIG) based wind turbine. The proposed SFCL improves the fault ride through (FRT) capability of DFIG and prevents the RSC from damaging fault currents. Because of using superconductor DC coil, there is not any power loss during fault or normal operation of system. The proposed SFCL does not have any considerable affect in wind turbine's operation during normal condition. It is not necessary to use any measurement and control systems, too. The SFCL returns to its normal operation after fault clearing in a very short time without any switching device. The modeling of proposed SFCL is presented based on analytical analysis. Simulation of a 2 MW 690 V DFIG with and without using the proposed SFCL is carried out by PSCAD/EMTDC software. The results show the excellent operation of proposed SFCL in improving the FRT of DFIG based wind turbine.
机译：本文提出了一种二极管桥式超导故障限流器（SFCL）与基于双馈感应发电机（DFIG）的风力涡轮机的转子侧变流器（RSC）的串联连接。所提出的SFCL改善了DFIG的故障穿越能力（FRT），并防止了RSC损坏故障电流。由于使用超导体直流线圈，因此在系统出现故障或正常运行时不会有任何功率损耗。拟议中的SFCL在正常条件下对风力涡轮机的运行没有任何重大影响。也不必使用任何测量和控制系统。排除故障后，SFCL在很短的时间内无需任何切换设备即可恢复其正常运行。在分析的基础上，提出了所提出的SFCL模型。使用PSCAD / EMTDC软件可以对使用和不使用建议的SFCL的2 MW 690 V DFIG进行仿真。结果表明，所提出的SFCL在改善基于DFIG的风力涡轮机的FRT方面具有出色的性能。

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