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公开(公告)号：US09762114B2
公开(公告)日：2017-09-12
申请号：US14894583
申请日：2014-06-17
发明人： Robin Lyle , Mark Snook , Robert John Leedham
IPC分类号： G05F1/12 , G05B24/02 , H02J1/00 , H02J3/12 , G05B11/01 , H02M5/42 , H02M7/68 , H02M3/24 , H02M7/44 , H02M7/538 , H02M1/088 , H03K17/12 , H03K17/28
CPC分类号： H02M1/088 , H03K17/127 , H03K17/28
摘要： The invention generally relates to methods and circuits for controlling switching of parallel coupled power semiconductor switching devices (3), for example for use in a power converter. In an example, there is provided a circuit for controlling switching of parallel coupled power semiconductor switching devices (3), the circuit comprising: a plurality of drive modules (2), each said module for controlling a said power semiconductor switching device (3); control circuitry to transmit switch command signals to the modules, each said switch command signal to trigger a said drive module to control a said power semiconductor switching device to switch state; and voltage isolation between the drive modules and the control circuitry, wherein each said drive module for controlling a said device comprises: timing circuitry (22) to compare a switching delay of the device and a reference delay, wherein said switching delay is a time interval between detecting a said switching command signal at the drive module and switching of the device in accordance with the detected switching command signal; and delay circuitry (21) to provide a controllable delay to delay a said triggering by a said switching command signal received at the module subsequent to the detected switching command signal, the delay circuitry configured to control the controllable delay according to a result of said comparison of said switching delay of the device, to thereby reduce a time difference between the reference delay and a said switching delay of the device switching in accordance with the subsequent switching command signal.
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公开(公告)号：US20170257022A1
公开(公告)日：2017-09-07
申请号：US15519084
申请日：2015-11-16
发明人： Angus BRYANT
CPC分类号： H02M1/34 , H02M1/088 , H02M3/04 , H02M5/04 , H02M7/04 , H02M7/487 , H02M7/53871 , H02M2001/0048 , H02M2001/342 , H02M2001/344 , H02M2007/4835 , Y02B70/1491
摘要： The present invention generally relates to a switching cell for a phase leg of a power converter and a method of controlling a power converter to drive a load, and more particularly to a plurality of such switching cells, a phase arm for a power converter, a power converter phase leg, to a power converter for driving a load, and methods of making a power converter. A switching cell for a phase leg of a power converter may comprise: a power switch for conducting a current for driving a load; a commutation path coupled in parallel with the power switch, the commutation path comprising a cell capacitor and an auxiliary switch coupled in series, the auxiliary switch configured to allow control of a conduction state of the commutation path; and a cell inductor coupled to a coupling of the power switch and the commutation path, wherein the switching cell comprises at least one control input line for receiving a control signal, the at least one control input line configured to drive a control terminal of the power switch and a control terminal of the auxiliary switch.
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公开(公告)号：US09649729B2
公开(公告)日：2017-05-16
申请号：US14879667
申请日：2015-10-09
发明人： Stefan Nettesheim , Dariusz Korzec
IPC分类号： B23K26/00 , B23K26/08 , B23K25/00 , B23K31/02 , C23C4/02 , C23C4/134 , B23K26/144 , B23K26/342 , B23K10/02
CPC分类号： B23K31/02 , B23K10/027 , B23K26/144 , B23K26/342 , C23C4/02 , C23C4/134
摘要： Presented is a method for forming at least one structure on a substrate. Utilizing a low-temperature plasma jet, powder, of which the structure shall be constructed, is applied to a surface of the substrate. Using at least one laser beam, heat is input into the substrate and/or the powder within a laser incidence region on the substrate. The heat input delays solidification of the powder particles, which are partly or fully melted in the plasma jet, on the substrate and thereby enables the formation of good adhesion between the applied powder, and thus the structure constructed out of the powder, and the substrate. The invention further relates to an apparatus for performing the method.
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公开(公告)号：US09640341B2
公开(公告)日：2017-05-02
申请号：US14899377
申请日：2014-06-24
发明人： Klaus Hoepfl , Silke Wrede , Dieter Dohnal , Christian Kotz
CPC分类号： H01H9/0038 , H01H9/0016 , H01H9/0044 , H01H2009/0022
摘要： An on-load tap changer has a load changeover switch insert having a switching tube rotatable about an axis, at least one switching module associated with the switching insert and having at least one switching segment fastened to the switching tube, an oil tank, and a resistor subassembly having a plurality of separate and identical resistors. An actuating arrangement associated with the switching module at an inner wall of the oil tank has a plurality of identical actuators associated with the switching module at the inner wall of the oil tank. The on-load tap changer is a load selector or a load changeover switch depending on the arrangement of the at least one identical switching segment, the resistor subassembly, and the mounting of the plurality of identical actuators at the inner wall of the oil tank.
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公开(公告)号：US09640339B2
公开(公告)日：2017-05-02
申请号：US14898404
申请日：2014-06-24
发明人： Klaus Hoepfl , Silke Wrede , Hubert Zwirglmaier
CPC分类号： H01H9/0005 , F16L55/1108 , H01H9/0044 , H01H2009/005
摘要： An on-load tap changer has a switching tube, an oil suction pipe arranged centrally and coaxially along an axis inside the switching tube, and a kerosene drain screw so mounted in a base of the on-load tap changer that it is coaxial with an axis of the oil suction pipe, with the axis of the switching tube, and with an axis of the on-load tap changer. A bearing ring is so acted on by a resilient element at one side and radially with respect to the axis of the on-load tap changer that the switching tube and the oil suction pipe both mechanically positively cooperate with the bearing ring and are centered about the axis of the on-load tap changer.
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公开(公告)号：US09557753B2
公开(公告)日：2017-01-31
申请号：US14428176
申请日：2013-09-19
发明人： Ansgar Hinz , Helmut Proelss , Karsten Viereck
CPC分类号： G05F1/147 , H01F27/29 , H02J3/12 , H02J3/1878 , Y02E40/30
摘要： The invention relates to a method for regulating the voltage of a transformer (1) having different winding taps (3). The problem addressed by the invention is that of providing a method with which different load flow directions can be regulated with conventional transformers (1) and voltage regulators (7) in order to ensure a safe and reliable supply of voltage. The general inventive concept consists in determining, using a method in which a quadrant system (11) is used, the phase angle of the conduction current (I) and thus the load flow direction, thereby preventing deviation from the voltage range as a result of power input that is too high, by controlling the load tap changer (4).
摘要翻译： 本发明涉及一种用于调节具有不同绕组抽头（3）的变压器（1）的电压的方法。 本发明解决的问题在于提供一种方法，利用传统变压器（1）和电压调节器（7）可以调节不同的负载流动方向，以确保电压的安全可靠供电。 总体发明构思在于，使用使用象限系统（11）的方法来确定导通电流（I）的相位角，从而确定负载流向，从而防止由于 电源输入过高，通过控制负载分接开关（4）。
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公开(公告)号：US20160351356A1
公开(公告)日：2016-12-01
申请号：US15109782
申请日：2015-02-13
CPC分类号： H01H9/52 , H01F29/04 , H01H9/0044 , H01L23/473
摘要： The invention relates to a switching unit comprising a switching module and a cooling channel. The switching unit (1) comprises a housing (2); a switching module (3, 3′, 3″), which is arranged in the interior of the housing (2) and has a switching element (4) and a cooling channel (5); an insulating liquid (6) in the interior of the housing (2), which surrounds the switching module (3, 3′, 3″); and a cooling circuit (7), which has a pump (8), the cooling channel (5) and a heat exchanger (10); the interior of the housing (2) and the cooling circuit (7) being hydraulically connected to each other.
摘要翻译： 本发明涉及一种包括切换模块和冷却通道的切换单元。 开关单元（1）包括壳体（2）; 开关模块（3,3'，3“），其布置在所述壳体（2）的内部并具有开关元件（4）和冷却通道（5）; 围绕所述开关模块（3,3'，3“）的壳体（2）的内部的绝缘液体（6）; 以及具有泵（8），冷却通道（5）和热交换器（10）的冷却回路（7）。 壳体（2）的内部和冷却回路（7）彼此液压连接。
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公开(公告)号：US09455658B2
公开(公告)日：2016-09-27
申请号：US14401792
申请日：2013-04-19
发明人： Herbert Kammerl , Alfred Bieringer
CPC分类号： H02P13/06 , H01H9/0027 , H01H9/0038 , H01H9/0044
摘要： The invention relates to an on-load tap changer for switching among different winding taps of a step transformer without interruption. According to the invention, the selector contact unit (7) and the switching means (16, 17) for switching the load without interruption are jointly actuated without using an intermediate energy accumulator, by means of a threaded spindle (5) which is rotated by a drive motor (2) during a switching operation.
摘要翻译： 本发明涉及一种用于在不间断地切换台阶变压器的不同绕组抽头之间切换的有载分接开关。 根据本发明，用于不间断地切换负载的选择器接触单元（7）和切换装置（16,17）在不使用中间蓄能器的情况下通过螺纹主轴（5）共同致动，螺纹主轴（5）由 在切换操作期间驱动马达（2）。
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公开(公告)号：US20160233680A1
公开(公告)日：2016-08-11
申请号：US14911392
申请日：2014-08-13
发明人： Alexei BABIZKI , Haijun FENG
IPC分类号： H02J3/38
摘要： The invention relates to a device (1) and a method for controlling the stability of a local network (3). The local network (3) comprises a plurality of outgoing circuits (41, 42, . . . , 4M), each having at least one load (5) and/or at least one decentralised energy generation system (6). Said device is provided with an on-load tap-changer (14) for adjusting an output voltage of the local network transformer (10). The device is characterised in that a unit (16) for measuring current, connected to at least one of the plurality of outgoing circuits (41, 42, . . . , 4M), and a unit (18) for measuring voltage, connected to a busbar (8) of the local network (3), are arranged in a transformer housing (20).
摘要翻译： 本发明涉及一种用于控制本地网络（3）的稳定性的设备（1）和方法。 本地网络（3）包括多个输出电路（41,42，...，4M），每个输出电路具有至少一个负载（5）和/或至少一个分散式能量产生系统（6）。 所述装置设有用于调节本地网络变压器（10）的输出电压的有载分接开关（14）。 该装置的特征在于，用于测量电流的单元（16），连接到多个输出电路（41,42，...，4M）中的至少一个，以及用于测量电压的单元（18），连接到 本地网络（3）的母线（8）布置在变压器壳体（20）中。
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公开(公告)号：US20160211089A1
公开(公告)日：2016-07-21
申请号：US14915361
申请日：2014-09-26
发明人： Uwe KALTENBORN , Thomas STROF , Christian HURM , Anatoli SAVELIEV , Gerhard BAEUML , Alfred BIERINGER , Eduard ZERR , Wolfgang ALBRECHT , Martin HAUSMANN , Andreas STOCKER
CPC分类号： H01H9/0027 , H01F29/04 , H01H9/0011 , H01H9/0016 , H01H9/0038
摘要： The invention relates to a step switch, comprising a preselector and a fine selector. The invention is characterized in that the step switch has a connection (36) between the pre-selector and the fine selector (18), at least one coupling switch (38) being arranged in said connection. A pre-selector can be switched in a largely gas-free manner by means of said switchable connection with the aid of the fine selector.
摘要翻译： 本发明涉及一种步进开关，包括预选器和精选机。 本发明的特征在于，步进开关具有在预选器和精选机（18）之间的连接（36），至少一个耦合开关（38）布置在所述连接中。 借助于精细选择器，借助于所述可切换连接，预选择器可以大大无气体地切换。
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