Device and method to break the current in power transmission or distribution system
    2.
    发明公开
    Device and method to break the current in power transmission or distribution system 有权
    装置和方法,用于中断电力传输或配电系统中的电流

    公开(公告)号:EP2806444A1

    公开(公告)日:2014-11-26

    申请号:EP14168486.0

    申请日:2014-05-15

    IPC分类号: H01H9/54 H01H33/59 H03K17/687

    摘要: A direct current (DC) circuit breaker (100) for power transmission or distribution system includes a current sensor (CS) for sensing current of a system, a controller (140), a physical switch (K), and multiple switch modules (12). The multiple switch modules (12) are electrically coupled to the current sensor (CS) and the physical switch (K) in series. Each switch module (12) includes multiple base elements electrically coupled in parallel. Each base element includes a first silicon carbide (SiC) metal-oxide-semiconductor field-effect transistor (MOSFET) and a second SiC MOSFET electrically coupled in an opposite series connection mode. The first and second SiC MOSFETs are configured in a synchronous rectification mode by channel reverse conduction control. The controller (140) controls the multiple switch modules (12) to connect current in the system, and break current of the multiple switch modules according to sensed current signals from the current sensor (CS).

    摘要翻译: 于电力传输或配电系统的直流(DC)断路器(100)包括电流传感器(CS),用于感测的系统的电流,控制器(140),物理开关(K),和多个开关模块(12 )。 所述多个开关模块(12)被电耦合到所述电流传感器(CS)和在系列中的物理开关(K)。 每个交换模块(12)包括并联电耦合的多个底座元件。 每个基体单元包括一个第一碳化硅(SiC)的金属 - 氧化物 - 半导体场效应晶体管(MOSFET)和一第二SiC MOSFET串联相反连接模式电耦合。 所述第一和第二碳化硅场效应晶体管被配置为在由信道反向传导控制同步整流模式。 所述控制器(140)控制所述多个开关模块(12)到系统中的连接电流,并打破多个开关模块gemäß的电流所感测来自所述电流传感器(CS)的电流信号。