公开(公告)号：EP3561843A2

公开(公告)日：2019-10-30

申请号：EP17884837.0

申请日：2017-12-19

申请人： Korea Electro Technology Research Institute ,  LSIS Co., Ltd.

发明人： LEE, Woo Young ,  PARK, Hae Yong ,  LEE, Gyeong Ho ,  PARK, Sang Hun ,  BAE, Chae Yoon ,  SIM, Jung Wook ,  JANG, Hyun Jae

IPC分类号： H01H33/66 ,  H01H33/59

摘要： A reverse current injection type DC current interrupting device and method using a vacuum gap switch are disclosed. The DC interrupting device includes a main current conduction unit including a main interrupting switch, which is a mechanical switch, a reverse current power supply unit connected to an input terminal of the main current conduction unit and configured to generate a predetermined reverse current, and a reverse current conduction unit configured to supply the reverse current to an output terminal of the main current conduction unit. The reverse current power supply unit includes a first reverse current dedicated capacitor charged by a voltage applied to an input terminal of the main current conduction unit, a polarity reversing inductor configured to reverse a polarity of the first reverse current dedicated capacitor, and a reverse current power supply unit switch configured to perform circuit connection such that the polarity reversing inductor reverses the polarity of the first reverse current dedicated capacitor.

公开(公告)号：EP3057117B1

公开(公告)日：2018-07-25

申请号：EP14852914.2

申请日：2014-09-05

申请人： Korea Electro Technology Research Institute

发明人： LEE, Woo Young ,  PARK, Sang Hun ,  SONG, Ki Dong ,  JANG, Hyun Jae ,  CHONG, Jin Kyo

IPC分类号： H01H9/54 ,  H01H33/59 ,  H02H3/06

CPC分类号： H02H3/087 ,  H01H9/54 ,  H01H9/542 ,  H01H9/547 ,  H01H33/596 ,  H01H2009/543 ,  H01H2009/544 ,  H01H2009/546

摘要： Provided is a DC current breaker having a high-speed breaking function appropriate to a voltage-type converter and a DC current breaking method. In addition, provided is a DC current breaker and a DC current breaking method capable of reducing cost of the breaker and securing economical competiveness by using a relatively simple configuration. The DC current breaker for breaking a DC current at the time of occurrence of an accident includes: a main conduction unit including three high-speed mechanical switches installed to be connected in series to a main conduction path for conducting a normal-operation-state current; a power semiconductor switch installed to be connected in parallel to one high-speed mechanical switch among the high-speed mechanical switches installed in the main conduction unit for current breaking of the main conduction unit; a capacitor installed on a circuit connected in parallel to the main conduction path; and a surge arrester installed to be connected in parallel to the capacitor connected in parallel to the main conduction path. The DC current breaking method uses the DC current breaker.

公开(公告)号：EP3057117A1

公开(公告)日：2016-08-17

申请号：EP14852914.2

申请日：2014-09-05

申请人： Korea Electro Technology Research Institute

发明人： LEE, Woo Young ,  PARK, Sang Hun ,  SONG, Ki Dong ,  JANG, Hyun Jae ,  CHONG, Jin Kyo

IPC分类号： H01H9/54

CPC分类号： H02H3/087 ,  H01H9/54 ,  H01H9/542 ,  H01H9/547 ,  H01H33/596 ,  H01H2009/543 ,  H01H2009/544 ,  H01H2009/546

摘要： Provided is a DC current breaker having a high-speed breaking function appropriate to a voltage-type converter and a DC current breaking method. In addition, provided is a DC current breaker and a DC current breaking method capable of reducing cost of the breaker and securing economical competiveness by using a relatively simple configuration. The DC current breaker for breaking a DC current at the time of occurrence of an accident includes: a main conduction unit including three high-speed mechanical switches installed to be connected in series to a main conduction path for conducting a normal-operation-state current; a power semiconductor switch installed to be connected in parallel to one high-speed mechanical switch among the high-speed mechanical switches installed in the main conduction unit for current breaking of the main conduction unit; a capacitor installed on a circuit connected in parallel to the main conduction path; and a surge arrester installed to be connected in parallel to the capacitor connected in parallel to the main conduction path. The DC current breaking method uses the DC current breaker.

摘要翻译： 提供了一种具有适用于电压型转换器和直流电流分断方法的高速分断功能的直流电流断路器。 此外，提供了一种能够通过使用相对简单的配置来降低断路器成本并确保经济竞争力的DC电流断路器和DC电流断开方法。 用于在发生事故时切断直流电流的直流断路器包括：主传导单元，其包括三个高速机械开关，所述三个高速机械开关被安装成与用于传导正常工作状态电流的主传导路径串联连接 ; 功率半导体开关，被安装为与安装在主传导单元中的高速机械开关中的一个高速机械开关并联连接，用于主传导单元的电流断开; 安装在与主传导路径并联的电路上的电容器; 以及安装成与并联连接到主导电路径的电容器并联的电涌放电器。 直流电流分断方法使用直流电流断路器。