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    DC CIRCUIT BREAKER BASED ON MAGNETIC INDUCTION COMMUTATION CIRCUIT
    2.
    发明公开
    DC CIRCUIT BREAKER BASED ON MAGNETIC INDUCTION COMMUTATION CIRCUIT 审中-公开
    基于磁感应换流电路的直流断路器

    公开(公告)号：EP3321949A1

    公开(公告)日：2018-05-16

    申请号：EP17168291.7

    申请日：2017-04-26

    申请人： Xi'an Jiaotong University

    发明人： RONG, Mingzhe ,  WU, Yi ,  WU, Yifei ,  YANG, Fei ,  NIU, Chunping

    IPC分类号： H01H33/59 ,  H02H3/087 ,  H01H9/54

    摘要： The present invention discloses a magnetic pulse inducted transfer-type DC circuit breaker. The DC circuit breaker comprises a main current circuit and a transfer current circuit, the main current circuit comprising a combination of a fast mechanical switch or a mechanical switch with a power electronic device; the transfer current circuit comprises an arrester and a mutual inductor. The voltage generated through a mutual inductor may directly transfer current to the arrestor, thereby eliminating a process of transfer of the current to the capacitor or a power electronic device; it has a high current limiting or breaking speed, with a stability far superior to traditional technologies. The isolation between the capacitance charging unit and the DC system significantly reduces the voltage level and size of the charging unit, and enhances action reliability. The power semiconductor devices or trigger gaps are used at the primary side of the mutual inductor of the transfer current circuit form a bridge circuit, thereby realizing bidirectional current transfer; the bridge circuit is voltage-withstanding and low-cost.

    摘要翻译： 本发明公开了一种磁脉冲感应转换式直流断路器。 直流断路器包括主电流电路和转移电流电路，主电流电路包括快速机械开关或机械开关与电力电子装置的组合; 转移电流电路包括避雷器和互感器。 通过互感器产生的电压可以直接将电流传输到避雷器，由此消除电流传输到电容器或电力电子设备的过程; 它具有很高的限流或分断速度，稳定性远远优于传统技术。 电容充电单元和直流系统之间的隔离显着降低了充电单元的电压水平和尺寸，并提高了动作可靠性。 功率半导体器件或触发间隙用于转移电流电路的互感器的初级侧形成桥式电路，从而实现双向电流转移; 该桥式电路耐压低，成本低。

    DC CIRCUIT BREAKER BASED ON COMBINATION OF DAMPING CIRCUIT AND MAGNETIC INDUCTION COMMUTATION CIRCUIT
    5.
    发明公开
    DC CIRCUIT BREAKER BASED ON COMBINATION OF DAMPING CIRCUIT AND MAGNETIC INDUCTION COMMUTATION CIRCUIT 审中-公开
    基于阻尼电路和磁感应换流电路组合的直流断路器

    公开(公告)号：EP3321948A1

    公开(公告)日：2018-05-16

    申请号：EP17168262.8

    申请日：2017-04-26

    申请人： Xi'an Jiaotong University

    发明人： WU, Yi ,  RONG, Mingzhe ,  WU, Yifei ,  YANG, Fei ,  NIU, Chunping

    IPC分类号： H01H33/59 ,  H02H3/087 ,  H01H9/54

    摘要： The present disclosure provides an arc-free DC circuit breaker that combines magnetic induction transfer and resistive current limiting. The circuit breaker comprises a main current circuit and a transfer current circuit. The transfer current circuit has a bridge structure; with a group of unidirectional components having a breaking function, bidirectional current breaking is implemented, such that compared with the prior art, usage of the turn-off devices may be reduced to half. By controlling action sequences of the trigger gap, high-speed switch, and power semiconductor, fast switching arc-free opening of the main current circuit is implemented; meanwhile, the breaking capability of the circuit breaker is significantly improved. By virtue of the current limiting module circuit inside the transfer current circuit, the present disclosure quickly limits short-circuit fault current, and then reduces the number of parallel groups of full-controlled devices of the breaking module circuit. Compared with the existing circuit breaker structures, usage of turn-off devices and cost of the circuit breaker may be significantly reduced.

    摘要翻译： 本公开提供了一种组合了磁感应传递和电阻电流限制的无电弧DC断路器。 断路器包括主电流电路和转移电流电路。 转印电流电路具有桥式结构; 利用一组具有分断功能的单向元件，实现了双向电流分断，使得与现有技术相比，关断装置的使用可减少一半。 通过控制触发间隙，高速开关和功率半导体的动作序列，实现主电流电路的快速开关无电弧开路; 同时，断路器的分断能力显着提高。 借助转移电流电路内部的限流模块电路，本发明快速限制短路故障电流，进而减少分断模块电路的全控设备并联组的数量。 与现有的断路器结构相比，断路装置的使用和断路器的成本可以显着降低。