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公开(公告)号：US08767420B1
公开(公告)日：2014-07-01
申请号：US14129027
申请日：2011-06-27
申请人： Jürgen Häfner , Christer Fessel
发明人： Jürgen Häfner , Christer Fessel
IPC分类号： H02M5/45
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US08891209B2
公开(公告)日：2014-11-18
申请号：US14358771
申请日：2011-11-18
申请人： Jürgen Häfner , Arman Hassanpoor
发明人： Jürgen Häfner , Arman Hassanpoor
CPC分类号： H02H3/22 , H01H9/541 , H01H33/596 , H01H2009/544 , H01H2009/546
摘要： A high voltage direct current (HVDC) hybrid circuit breaker is provided. The circuit breaker includes a solid-state main breaker, a mechanical fast disconnector and a solid-state auxiliary breaker connected in series, the series-connection of the disconnector and the auxiliary breaker being connected in parallel to the main breaker, a snubber circuit including a capacitor, and a switching device 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.
摘要翻译： 提供高压直流（HVDC）混合断路器。 断路器包括固态主断路器，机械快速断路器和串联连接的固态辅助断路器，断路器和辅助断路器的串联连接与主断路器并联连接，缓冲电路包括 电容器和开关装置，其布置成响应于所述辅助断路器断开而断开所述缓冲电容器。 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。
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公开(公告)号：US08848322B2
公开(公告)日：2014-09-30
申请号：US14127877
申请日：2011-06-20
申请人： Jürgen Häfner , Willy Hermansson
发明人： Jürgen Häfner , Willy Hermansson
CPC分类号： H02H9/02 , H02M1/32 , H03K17/107 , H03K17/127 , H03K17/18 , H03K17/78
摘要： It is presented a gate control circuit comprising: a main gate unit arranged to supply, via a plurality of main gate unit outputs, a gate signal to respective gates of a plurality of power switches, for controlling a main current; and an auxiliary gate unit comprising an optical power converter for converting incoming optical power to an auxiliary electrical gate signal. The auxiliary gate unit is arranged to, when a failure occurs in one of the plurality of power switches, provide the auxiliary electrical gate signal to respective gates of any of the plurality of power switches still being in operation. A corresponding power module and method are also presented.
摘要翻译： 提供了一种门控电路，包括：主门单元，被布置成经由多个主门单元输出将门信号提供给多个功率开关的各个门，用于控制主电流; 以及辅助门单元，其包括用于将输入光功率转换为辅助电门信号的光功率转换器。 辅助门单元被布置为当在多个功率开关中的一个功率开关中发生故障时，将辅助电门信号提供给仍在运行的多个功率开关中的任一个的各个门。 还提出了相应的功率模块和方法。
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公开(公告)号：US08817445B1
公开(公告)日：2014-08-26
申请号：US14128986
申请日：2011-06-27
申请人： Jan Lundquist , Jürgen Häfner , Leif Sköld , Håkan Wieck , Dag Andersson
发明人： Jan Lundquist , Jürgen Häfner , Leif Sköld , Håkan Wieck , Dag Andersson
摘要： A voltage surge protection device for protection of a high voltage device includes a varistor having a first part and a second part separated by varistor material. The voltage surge protection device further includes an expandable member arranged to act on a movable electrical contact for short-circuiting the voltage surge protection device upon a threshold voltage being applied between the first part and the second part of the varistor. A high voltage circuit breakers includes one or more semiconductor devices connected in series and the voltage surge protection device connected in parallel thereto.
摘要翻译： 用于保护高压装置的电压浪涌保护装置包括具有由非线性电阻材料隔开的第一部分和第二部分的变阻器。 电压浪涌保护装置还包括可膨胀构件，该可膨胀构件布置成作用在可移动电接触件上，以在施加在压敏电阻器的第一部分和第二部分之间的阈值电压时短路电压浪涌保护装置。 高压断路器包括串联连接的一个或多个半导体器件和并联连接的电压浪涌保护器件。
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5.发明授权Device and method to break the current of a power transmission or distribution line and current limiting arrangement 有权断开电力输配电线路的电流和电流限制装置的装置和方法公开(公告)号：US08717716B2
公开(公告)日：2014-05-06
申请号：US13509974
申请日：2009-11-16
申请人： Jürgen Häfner , Björn Jacobson
发明人： Jürgen Häfner , Björn Jacobson
IPC分类号： H02H3/00
CPC分类号： H01H9/542 , H01H9/30 , H01H9/548 , H01H33/596 , H01H2009/543 , Y10T307/747
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US20130106184A1
公开(公告)日：2013-05-02
申请号：US13807618
申请日：2011-06-30
IPC分类号： H02J1/00
CPC分类号： H02J1/00 , H01H33/596 , H02H7/1257 , H02H7/268 , Y10T307/313 , Y10T307/344 , Y10T307/391 , Y10T307/406 , Y10T307/729 , Y10T307/747
摘要： The present invention relates to an HVDC switchyard arranged to interconnect a first part of a DC grid with a second part of the DC grid. By means of the invention, a first part of the DC grid is connected to the busbars of the HVDC switchyard via a fast DC breaker, while further part(s) of the DC grid are connected to the busbars of the HVDC switchyard by means of switchyard DC breakers of lower breaking speed. By use of the inventive HVDC switchyard arrangement, the cost for the HVDC switchyard can be considerably reduced, while adequate protection can be provided. In one embodiment, the fast DC breaker is an HVDC station DC breaker forming part of an HVDC station. In another embodiment, the fast DC breaker is a switchyard DC breaker.
摘要翻译： 本发明涉及一种将DC网格的第一部分与DC网格的第二部分相互连接的HVDC开关场所。 通过本发明，DC电网的第一部分经由快速DC断路器连接到HVDC开关站的母线，而直流电网的另外部分通过以下方式连接到HVDC开关站的汇流条： 开关柜断路器的断开速度较低。 通过使用本发明的高压直流输电开关装置，可以显着地降低HVDC开关站的成本，同时可以提供足够的保护。 在一个实施例中，快速DC断路器是形成HVDC站的一部分的HVDC站DC断路器。 在另一个实施例中，快速DC断路器是开关站DC断路器。
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公开(公告)号：US08896364B2
公开(公告)日：2014-11-25
申请号：US14129015
申请日：2011-06-27
IPC分类号： H03K17/687 , H03K17/06 , H03K17/94
CPC分类号： H03K17/941 , H02H1/0069 , H02H1/06 , H02H3/05 , H02H7/268 , H02M1/092 , H03K17/06
摘要： A gate control device for a semiconductor device includes at least one power supply module, at least one optical communication interface for receiving optical signals from two valve control units and converting them to electric signals for supply to a corresponding power supply module, where in normal operations mode one valve control unit is an active valve control unit and the other is a standby valve control unit, where the optical signal of an active unit energizes the gate control device and provides semiconductor device controlling data, a semiconductor device control module and a reliability control module that performs selection of active valve control unit.
摘要翻译： 一种用于半导体器件的栅极控制装置包括至少一个电源模块，至少一个光通信接口，用于接收来自两个阀控制单元的光信号，并将其转换为电信号供给相应的电源模块，其中在正常操作 模式一阀控制单元是主动阀控制单元，另一个是备用阀控制单元，其中有源单元的光信号激励门控制装置并提供半导体器件控制数据，半导体器件控制模块和可靠性控制 执行主动阀控制单元的选择。
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公开(公告)号：US20140313628A1
公开(公告)日：2014-10-23
申请号：US14358771
申请日：2011-11-18
申请人： Jürgen Häfner , Arman Hassanpoor
发明人： Jürgen Häfner , Arman Hassanpoor
IPC分类号： H02H3/22
CPC分类号： H02H3/22 , H01H9/541 , H01H33/596 , H01H2009/544 , H01H2009/546
摘要： A high voltage direct current (HVDC) hybrid circuit breaker is provided. The circuit breaker includes a solid-state main breaker, a mechanical fast disconnector and a solid-state auxiliary breaker connected in series, the series-connection of the disconnector and the auxiliary breaker being connected in parallel to the main breaker, a snubber circuit including a capacitor, and a switching device 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.
摘要翻译： 提供高压直流（HVDC）混合断路器。 断路器包括固态主断路器，机械快速断路器和串联连接的固态辅助断路器，断路器和辅助断路器的串联连接与主断路器并联连接，缓冲电路包括 电容器和开关装置，其布置成响应于所述辅助断路器断开而断开所述缓冲电容器。 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。
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公开(公告)号：US20140226244A1
公开(公告)日：2014-08-14
申请号：US14128986
申请日：2011-06-27
申请人： Jan Lundquist , Jürgen Häfner , Leif Sköld , Håkan Wieck , Dag Andersson
发明人： Jan Lundquist , Jürgen Häfner , Leif Sköld , Håkan Wieck , Dag Andersson
IPC分类号： H02H9/04
摘要： A voltage surge protection device for protection of a high voltage device includes a varistor having a first part and a second part separated by varistor material. The voltage surge protection device further includes an expandable member arranged to act on a movable electrical contact for short-circuiting the voltage surge protection device upon a threshold voltage being applied between the first part and the second part of the varistor. A high voltage circuit breakers includes one or more semiconductor devices connected in series and the voltage surge protection device connected in parallel thereto.
摘要翻译： 用于保护高压装置的电压浪涌保护装置包括具有由非线性电阻材料隔开的第一部分和第二部分的变阻器。 电压浪涌保护装置还包括可膨胀构件，该可膨胀构件布置成作用在可移动电接触件上，以在施加在压敏电阻器的第一部分和第二部分之间的阈值电压时短路电压浪涌保护装置。 高压断路器包括串联连接的一个或多个半导体器件和并联连接的电压浪涌保护器件。
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10.发明申请DEVICE AND METHOD TO BREAK THE CURRENT OF A POWER TRANSMISSION OR DISTRIBUTION LINE AND CURRENT LIMITING ARRANGEMENT 有权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公开(公告)号：US20120299393A1
公开(公告)日：2012-11-29
申请号：US13509974
申请日：2009-11-16
申请人： Jürgen Häfner , Björn Jacobson
发明人： Jürgen Häfner , Björn Jacobson
CPC分类号： H01H9/542 , H01H9/30 , H01H9/548 , H01H33/596 , H01H2009/543 , Y10T307/747
摘要： 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.
摘要翻译： 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。
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