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公开(公告)号：US09806532B2
公开(公告)日：2017-10-31
申请号：US14769547
申请日：2013-02-22
CPC分类号： H01H33/596
摘要： A method for switching an operating current in a meshed DC voltage network enables operating currents in a DC voltage network to be switched economically in both directions. At least one converter connected to the DC voltage network is controlled in such a way that a zero current is generated in a switching branch having a mechanical switch and the mechanical switch is actuated in accordance with the generated zero current.
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公开(公告)号：US20170271100A1
公开(公告)日：2017-09-21
申请号：US15505173
申请日：2015-06-10
发明人： Shiken KA , Hiroki ITO , Kunio KIKUCHI , Makoto MIYASHITA , Kazuyori TAHATA , Sho TOKOYODA , Kenji KAMEI
CPC分类号： H01H9/54 , H01F27/24 , H01F38/40 , H01H9/542 , H01H9/56 , H01H33/596 , H01H33/66 , H01H71/24 , H01H89/00 , H01H2009/543
摘要： A direct-current circuit includes: a breaker that is inserted into the direct-current line and becomes a path for direct current when in a steady state; a resonance circuit connected in parallel with the breaker and superimposing resonance current on the direct current; and a first disconnector and a second disconnector connected to first and second connection points of the breaker and the resonance circuit, respectively, and forming a path for the direct current together with the breaker. The resonance circuit includes a series circuit that includes a capacitor and a reactor and generates the resonance current, a charging resistor for charging the capacitor with a direct-current potential of the direct-current line, a high-speed switch connected in series with the series circuit on the capacitor side and superimposing the resonance current on the direct current, and an arrester connected in parallel with the capacitor and the high-speed switch.
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公开(公告)号：US09768772B1
公开(公告)日：2017-09-19
申请号：US14460049
申请日：2014-08-14
发明人： Robert Khamashta , Daniel David Hershey , Jason Evans Goulden , Shelomon Patrick Doblack , Manuel Rinley Deeds, III , Hsueh Jang Su , Mi Zhou , Colter Earl Cederlof
IPC分类号： H01H19/64 , H01H31/10 , H01H33/52 , H01H33/59 , H01H47/00 , H01H85/46 , H03K17/94 , H03K17/687
CPC分类号： H03K17/94 , H02M1/10 , H02M7/5387 , H03K17/6871
摘要： Described are devices for automatically adapting electrical polarity from a power source to a specified output polarity for use by an electrical load. In one implementation, power adaptation circuitry comprising one or more bridge circuits accept electrical power of unspecified polarity and output specified polarity. The bridge circuit may comprise a plurality of field-effect transistors (FETs) configured such that a particular subset of the FETs are energized to conduct electric current to the outputs when a particular polarity is applied at inputs.
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公开(公告)号：US20170263399A1
公开(公告)日：2017-09-14
申请号：US15500172
申请日：2015-07-09
发明人： THOMAS HEINZ
CPC分类号： H01H33/596 , H01H33/167 , H01H33/66
摘要： A configuration for generating a zero current pulse for generating a zero current crossing in an electrical component through which a direct current flows, in particular a vacuum interrupter, includes a switch and an electrical energy storage device or store having two poles through which the electrical energy storage device can be charged by a voltage source. A loop can be formed by the energy storage device, the electrical component through which the direct current flows and the switch, so that the energy storage device can be discharged by closing the switch while generating a zero current pulse counter to the direct current across the electrical component. The energy storage device has a plurality of energy storage elements for mutual generation of a zero current pulse.
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公开(公告)号：US09704664B2
公开(公告)日：2017-07-11
申请号：US14527230
申请日：2014-10-29
CPC分类号： H01H9/54 , H01H9/563 , H01H33/593 , H02H3/083 , H02H7/0455 , H02H9/002
摘要： According to one embodiment, a magnetizing inrush current suppressing device is configured to measure a three-phase alternating current flowing from the power supply bus to the load, detect a first interruption phase as a phase of an electric current which is interrupted first among the three phases, detect a phase of a phase voltage zero point through which a phase voltage of the first interruption phase of the three-phase AC voltage passes when changing from the same polarity as that of an electric current immediately before interruption of the first interruption phase to an opposite polarity, and close the circuit-breaker at a phase within 60° from the detected phase.
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公开(公告)号：US09634476B1
公开(公告)日：2017-04-25
申请号：US15119730
申请日：2013-12-27
发明人： Dongming Cao , Taixun Fang , Yu Wang , Hao Yang , Bing Yang , Wei Shi , Wei Lu
摘要： An apparatus for breaking a line bidirectional current and a control method therefore. The apparatus comprises a breaking current branch circuit and an on-state current branch circuit, the breaking current branch circuit comprises one nonlinear resistor being connected in parallel to one first power semiconductor device, or one nonlinear resistor being connected in parallel to at least two first power semiconductor devices mutually connected in series; and the on-state current branch circuit comprises at least one bidirectional power semiconductor switch being connected in series to at least one high-speed isolation switch. The apparatus also comprises a bridge-type branch circuit. An apparatus for breaking a line bidirectional current, thereby greatly reducing costs of the apparatus and reducing difficulty in device layout, mounting and wiring of the apparatus on the premise of ensuring a breaking speed that is quick enough and a low loss.
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公开(公告)号：US09589754B2
公开(公告)日：2017-03-07
申请号：US14309023
申请日：2014-06-19
发明人： David Couzon , Joel Reboulet
CPC分类号： H01H50/546 , H01H1/20 , H01H9/40 , H01H33/596 , H01H50/02
摘要： The electrical contactor (100) according to the invention comprises at least one first switch (104) that includes a first moving contact (112) and several second switches (106) that include a second moving contact (116). The contactor further comprises at least one control device for controlling the movement of the or each first (112), second (116) moving contact, respectively. The control device is capable of controlling the movement of the or each first moving contact (112) into the open position before that of each second moving contact (116) into the open position, and when the or each first moving contact (112) is in the closed position, the second switches (106) are connected in parallel, whereas when the or each first moving contact (112) is in the open position, the second switches (106) are connected in series.
摘要翻译： 根据本发明的电接触器（100）包括至少一个包括第一移动触头（112）和包括第二移动触点（116）的多个第二开关（106）的第一开关（104）。 接触器还包括至少一个控制装置，用于分别控制或每个第一（112），第二（116）移动接触件的运动。 控制装置能够将每个第一移动触点（112）的移动或每个第一移动触点（112）的运动控制到打开位置，使其在每个第二移动触点（116）进入打开位置之前， 在关闭位置，第二开关106并联连接，而当第一移动触点112处于打开位置时，第二开关106串联连接。
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公开(公告)号：US20160329179A1
公开(公告)日：2016-11-10
申请号：US15109039
申请日：2014-12-30
申请人： HYOSUNG CORPORATION
发明人： Byung-Chol KIM , Se-Hee HAN
CPC分类号： H01H33/596 , H01H9/542 , H01H9/547 , H01H2009/543 , H01H2009/544
摘要： The present invention relates to a high-voltage direct current (DC) circuit breaker for cutting off a fault current from flowing through a line during a malfunction in a high-voltage DC line. A DC circuit breaker according to the present invention comprises: a mechanical switch disposed on a DC line; an L/C circuit connected in parallel with the mechanical switch (110), and comprising a capacitor and a reactor connected in series to each other to generate LC resonance; a first semiconductor switch, connected in parallel to the L/C circuit, for switching the unidirectional flow of the current; and a second semiconductor switch, connected in parallel to the first semiconductor switch, for switching the uni- and reverse-directional flow of current.
摘要翻译： 本发明涉及一种高压直流（DC）断路器，用于在高压直流线路故障期间切断故障电流流经线路。 根据本发明的DC断路器包括：设置在DC线路上的机械开关; 与机械开关（110）并联连接的L / C电路，并且包括彼此串联连接以产生LC谐振的电容器和电抗器; 与L / C电路并联连接的用于切换电流的单向流的第一半导体开关; 以及与第一半导体开关并联连接的用于切换单向和反向电流的第二半导体开关。
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公开(公告)号：US09450397B2
公开(公告)日：2016-09-20
申请号：US14781452
申请日：2013-04-09
申请人： ABB Technology Ltd
发明人： Kenneth Johansson
摘要： A circuit breaking arrangement is disclosed, which is adapted to be coupled to a transmission line arranged to carry direct current for controllably effecting discontinuation of flow of direct current in the transmission line. The circuit breaking arrangement includes a current interrupter unit, which is adapted to, when actuated, interrupt current in the transmission line, and at least one resonance circuit. The resonance circuit is connected in parallel with the current interrupter unit and includes at least one capacitor, at least one inductor and at least one switch element. The resonance circuit is adapted to, upon actuation of the current interrupter unit, generate a resonance current superposing current of any arc generated in the current interrupter unit after actuation thereof, upon closing of the switch element by means of successive discharging and charging of the at least one capacitor. An auxiliary power supply unit is coupled to the resonance circuit and adapted to selectively and controllably convey power to the at least one capacitor, thereby charging it. On a condition that voltage of the transmission line and/or voltage of the at least one capacitor does not comply with a selected voltage criterion, the auxiliary power supply unit is caused to convey power to the at least one capacitor. The circuit breaking arrangement may be arranged so as to allow for conveyance of power transmitted in the transmission line to the at least one capacitor, thereby charging it.
摘要翻译： 公开了一种电路断开装置，其适于耦合到布置成承载直流电的传输线，以可控制地实现在传输线路中的直流电流的中断。 断路装置包括电流断续器单元，其适于在致动时中断传输线中的电流，以及至少一个谐振电路。 谐振电路与电流断续器单元并联连接，并且包括至少一个电容器，至少一个电感器和至少一个开关元件。 谐振电路适于在电流断续器单元的致动时产生谐振电流，其叠加在电流断续器单元中产生的任何电弧的电流，其在致动之后，通过连续放电和充电所述开关元件闭合开关元件 至少一个电容器。 辅助电源单元耦合到谐振电路并且适于选择性地和可控地将功率传送到至少一个电容器，从而对其进行充电。 在所述至少一个电容器的传输线的电压和/或电压不符合所选择的电压标准的条件下，使所述辅助电源单元向所述至少一个电容器传送电力。 断路装置可以被布置成允许将传输线中传输的功率传送到至少一个电容器，从而对其进行充电。
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60.发明授权Method for controlling a current breaking device in a high-voltage electricity network 有权用于控制高压电网中的电流断路装置的方法公开(公告)号：US09390872B2
公开(公告)日：2016-07-12
申请号：US13516214
申请日：2010-12-14
申请人： Alain Fanget
发明人： Alain Fanget
CPC分类号： H01H33/593 , H01H9/563 , Y10T307/944
摘要： A method of controlling a current breaking device in a high-voltage electricity network is disclosed. In one aspect, the method includes, for each phase (A, B, C), obtaining missing supply voltages from an acquired supply voltage, performing healthy phase/faulty phase discrimination, conducting voltage analysis by attempted matching of a model over a signal window, choosing a strategy of simple closing or reclosing of the breaking device as a function of choice conditions, calculating a set of optimum reclosing times for each phase in accordance with the chosen strategy, and selecting an optimum time from the proposed optimum times and closing the phases of the current breaking device.
摘要翻译： 公开了一种控制高压电网中的电流断路装置的方法。 在一个方面，该方法包括对于每个相（A，B，C），从获得的电源电压获得缺失的电源电压，执行健康的相位/故障相位鉴别，通过在信号窗口上尝试匹配模型进行电压分析 选择作为选择条件的函数的断路装置的简单闭合或重新闭合的策略，根据所选择的策略计算每相的一组最佳重合闸时间，并从所提出的最佳时间选择最佳时间并关闭 当前断路装置的相位。
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