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    • 2. 发明申请
    • DEVICE AND METHOD TO BREAK THE CURRENT OF A POWER TRANSMISSION OR DISTRIBUTION LINE AND CURRENT LIMITING ARRANGEMENT
    • 破坏电力传输或分配线路的电流和电流限制装置的装置和方法
    • WO2011057675A1
    • 2011-05-19
    • PCT/EP2009/065233
    • 2009-11-16
    • ABB TECHNOLOGY AGHÄFNER, JürgenJACOBSON, Björn
    • HÄFNER, JürgenJACOBSON, Björn
    • H01H9/54
    • H01H9/542H01H9/30H01H9/548H01H33/596H01H2009/543Y10T307/747
    • A device (13) to break an electrical current flowing through a power transmission or distribution line (14) comprises a parallel connection of a main breaker (8) and a non-linear resistor (11), where the main breaker (8) comprises at least one power semiconductor switch of a first current direction. The device (13) further comprises a series connection of a high speed switch (10) comprising at least one mechanical switch and of an auxiliary breaker (9), the auxiliary breaker having a smaller on-resistance than the main breaker (8) and comprising at least one power semiconductor switch of the first current direction. The series connection is connected in parallel to the parallel connection. In a method to use the device (13) first the auxiliary breaker (9) is opened, thereby commutating the current to the main breaker (8), afterwards the high speed switch (10) is opened and afterwards the main breaker (8) is opened thereby commutating the current to the non-linear resistor (11). The device (13) can further be used in a current limiting arrangement.
    • 断开通过动力传输或分配线路(14)的电流的装置(13)包括主断路器(8)和非线性电阻器(11)的并联连接,其中主断路器(8)包括 至少一个第一电流方向的功率半导体开关。 所述装置(13)还包括包括至少一个机械开关和辅助断路器(9)的高速开关(10)的串联连接,所述辅助断路器具有比所述主断路器(8)更小的导通电阻,以及 包括至少一个第一电流方向的功率半导体开关。 串联连接与并联连接。 在首先使用装置(13)的方法中,辅助断路器(9)打开,从而将电流换向主断路器(8),之后高速开关(10)打开,然后主断路器(8) 被打开,从而将电流换向非线性电阻器(11)。 装置(13)可进一步用于限流装置。
    • 3. 发明申请
    • HVDC HYBRID CIRCUIT BREAKER WITH SNUBBER CIRCUIT
    • HVDC混合电路断路器与SNUBBER电路
    • WO2013071980A1
    • 2013-05-23
    • PCT/EP2011/070484
    • 2011-11-18
    • ABB TECHNOLOGY AGHÄFNER, JürgenHASSANPOOR, Arman
    • HÄFNER, JürgenHASSANPOOR, Arman
    • H01H33/59H01H9/54
    • H02H3/22H01H9/541H01H33/596H01H2009/544H01H2009/546
    • A high voltage direct current (HVDC) hybrid circuit breaker (200) is provided. The circuit breaker comprises a solid-state main breaker (210), a mechanical fast disconnector (220) and a solid-state auxiliary breaker (230) connected in series, the series-connection of the disconnector and the auxiliary breaker being connected in parallel to the main breaker, a snubber circuit comprising a capacitor (250), and switching means (270) being arranged for disconnecting the snubber capacitor in response to the auxiliary breaker being opened. By disconnecting the snubber capacitor, an uncontrolled discharging of the capacitor through the disconnector and the main breaker, and the resulting non-zero current flowing through the disconnector during the breaking action, may be avoided. Further, a method of an HVDC hybrid circuit breaker is provided.
    • 提供高压直流(HVDC)混合式断路器(200)。 断路器包括固态主断路器(210),机械快速断路器(220)和串联连接的固态辅助断路器(230),断路器和辅助断路器的串联连接并联 包括电容器(250)和开关装置(270)的缓冲电路被布置成响应于断路器被断开而断开缓冲电容器。 通过断开缓冲电容器,可以避免电容器通过断路器和主断路器的不受控制的放电,以及在断开动作期间流过隔离开关的结果非零电流。 此外,提供了一种HVDC混合式断路器的方法。
    • 4. 发明申请
    • POWER SUPPLY FOR CONTROLLING A POWER SWITCH
    • 用于控制电源开关的电源
    • WO2013000500A1
    • 2013-01-03
    • PCT/EP2011/060721
    • 2011-06-27
    • ABB TECHNOLOGY AGHÄFNER, JürgenFESSEL, Christer
    • HÄFNER, JürgenFESSEL, Christer
    • H02M1/096
    • H03K17/60H02M1/096
    • It is presented a power supply for providing power to control a power switch for a high voltage application. The power supply comprises: a high voltage divider arranged to be connected to a first current terminal of the power switch; a step down DC/DC converter connected to an output of the high voltage divider, wherein the step down DC/DC converter is arrange to provide an output voltage for control of the at least one power switch to an output of the power supply; and a bypass control unit arranged to control the high voltage divider to short circuit an main input and a main output of the high voltage divider when the voltage across the power switch is lower than a threshold voltage.
    • 它提供一个电源,用于提供电力来控制高压应用的电源开关。 电源包括:高压分压器,被布置成连接到电源开关的第一电流端子; 连接到所述高压分压器的输出的降压DC / DC转换器,其中所述降压DC / DC转换器被布置成提供用于将所述至少一个功率开关控制到所述电源的输出的输出电压; 以及旁路控制单元,其布置成当所述电源开关两端的电压低于阈值电压时,控制所述高压分压器使所述高压分压器的主输入和主输出短路。