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    • 4. 发明授权
    • Superconducting fault current limiter for suppressing bus voltage drop in electric power system
    • 用于抑制电力系统总线电压降的超导故障限流器
    • US08810978B2
    • 2014-08-19
    • US13582444
    • 2010-10-22
    • Sung-Hun LimJae-Chul KimIl-Kyoung YouJin-Seok KimMyoung-Hoo Kim
    • Sung-Hun LimJae-Chul KimIl-Kyoung YouJin-Seok KimMyoung-Hoo Kim
    • H02H9/02
    • H02H9/023Y02E40/69
    • Disclosed herein is a Superconducting Fault Current Limiter (SFCL) for suppressing a bus voltage drop in an electric power system. A primary winding, a secondary winding, and a tertiary winding are wound around an identical iron core, and a superconductor is connected to any one of the primary winding and the secondary winding. A first switch is connected to any one of the primary winding and the secondary winding and is configured to be opened so as to separate a faulty section when a fault current is generated and to be shorted when the fault current is eliminated. A second switch is connected in series to the tertiary winding and is configured to be shorted so as to stably supply power when the fault current is generated and to be opened when the fault current is eliminated. According to the present invention, there are advantages in that a fault current is limited using magnetic coupling between two coils that are connected in a non-isolated type (in parallel or in series) or in an isolated type and in that a faulty section is separated using a switch and power is stably supplied to a section, in which a bus voltage drop has occurred due to the fault current, using a tertiary winding and a switch connected thereto, thus improving the stability of the system and obtaining economic effects.
    • 这里公开了一种用于抑制电力系统中总线电压降的超导故障限流器(SFCL)。 初级绕组,次级绕组和三级绕组缠绕在相同的铁芯上,并且超导体连接到初级绕组和次级绕组中的任何一个。 第一开关连接到初级绕组和次级绕组中的任何一个,并且被配置为打开以便在产生故障电流时分离故障部分并且在故障电流消除时被短路。 第二开关串联连接到三次绕组,并且被配置为短路,以便在产生故障电流时稳定地供电,并且在故障电流消除时被打开。 根据本发明,存在的优点在于,使用以非隔离型(并联或串联)或隔离型连接的两个线圈之间的磁耦合来限制故障电流,并且故障部分是 使用开关分离,并且使用三级绕组和与其连接的开关,将稳定地供给到由于故障电流而发生总线电压降的部分的电力,从而提高了系统的稳定性并获得经济效果。
    • 7. 发明申请
    • SUPERCONDUCTING FAULT CURRENT LIMITER FOR SUPPRESSING BUS VOLTAGE DROP IN ELECTRIC POWER SYSTEM
    • 用于抑制电力系统中总线电压降的超导故障电流限制
    • US20120327538A1
    • 2012-12-27
    • US13582444
    • 2010-10-22
    • Sung-Hun LimJae-Chul KimIl-Kyoung YouJin-Seok KimMyoung-Hoo Kim
    • Sung-Hun LimJae-Chul KimIl-Kyoung YouJin-Seok KimMyoung-Hoo Kim
    • H02H9/02H02H9/04
    • H02H9/023Y02E40/69
    • Disclosed herein is a Superconducting Fault Current Limiter (SFCL) for suppressing a bus voltage drop in an electric power system. A primary winding, a secondary winding, and a tertiary winding are wound around an identical iron core, and a superconductor is connected to any one of the primary winding and the secondary winding. A first switch is connected to any one of the primary winding and the secondary winding and is configured to be opened so as to separate a faulty section when a fault current is generated and to be shorted when the fault current is eliminated. A second switch is connected in series to the tertiary winding and is configured to be shorted so as to stably supply power when the fault current is generated and to be opened when the fault current is eliminated. According to the present invention, there are advantages in that a fault current is limited using magnetic coupling between two coils that are connected in a non-isolated type (in parallel or in series) or in an isolated type and in that a faulty section is separated using a switch and power is stably supplied to a section, in which a bus voltage drop has occurred due to the fault current, using a tertiary winding and a switch connected thereto, thus improving the stability of the system and obtaining economic effects.
    • 这里公开了一种用于抑制电力系统中总线电压降的超导故障限流器(SFCL)。 初级绕组,次级绕组和三级绕组缠绕在相同的铁芯上,并且超导体连接到初级绕组和次级绕组中的任何一个。 第一开关连接到初级绕组和次级绕组中的任何一个,并且被配置为打开以便在产生故障电流时分离故障部分并且在故障电流消除时被短路。 第二开关串联连接到三次绕组,并且被配置为短路,以便在产生故障电流时稳定地供电,并且在故障电流消除时被打开。 根据本发明,存在的优点在于,使用以非隔离型(并联或串联)或隔离型连接的两个线圈之间的磁耦合来限制故障电流,并且故障部分是 使用开关分离,并且使用三级绕组和与其连接的开关,将稳定地供给到由于故障电流而发生总线电压降的部分的电力,从而提高了系统的稳定性并获得经济效果。