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公开(公告)号：US09606554B2
公开(公告)日：2017-03-28
申请号：US14418236
申请日：2013-07-24
发明人： Masahiro Watanabe , Ryo Egashira , Kenichiro Yamane , Katsuhiro Matsuda , Takafumi Futakami , Toshiyuki Seto , Jun Murakoshi
CPC分类号： G05F1/14 , H02J3/1878 , Y02E40/12 , Y02E40/30
摘要： A voltage adjustment device, a voltage adjusting method and a power control system for a distribution system are provided, in which the voltage adjustment device and a static var compensator are appropriately operated in a coordinated manner and the sustention of voltage and the enhancement of the operation efficiency are attained. A voltage adjustment device for a distribution system is installed in the distribution system including a static var compensator on an end side and controls a secondary voltage to be within a predetermined limit value by adjusting a tap position. The voltage adjustment device includes a first unit configured to estimate the secondary voltage; a second unit configured to obtain a corrected voltage by correcting the estimated secondary voltage by using a correction amount obtained from an output of the static var compensator; and a third unit configured to compare the corrected voltage with the predetermined limit value and operate the tap position when the corrected voltage deviates from the predetermined limit value.
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公开(公告)号：US09600004B2
公开(公告)日：2017-03-21
申请号：US14617065
申请日：2015-02-09
IPC分类号： G05F1/14 , G05F1/147 , G05F1/153 , G05F1/16 , H01F29/04 , H02P13/06 , H02J3/12 , H02J3/38 , H02J13/00
CPC分类号： G05F1/147 , G05F1/14 , G05F1/153 , G05F1/16 , H01F29/04 , H02J3/12 , H02J3/381 , H02J3/382 , H02J13/0006 , H02P13/06 , Y02E40/72 , Y02E60/726 , Y04S10/12 , Y04S10/123 , Y04S10/24
摘要： An electric power system including an on-load tap changing (OLTC) transformer is provided. The OLTC transformer includes a primary winding and a secondary winding. A portion of the at least one primary winding and at least one of the secondary windings are inductively coupled to each other. Further, the electric power system includes at least one on-load tap changer coupled to the at least one primary winding or the at least one secondary winding of the OLTC transformer. The on-load tap changer is configured to regulate the portion of the at least one primary winding or the at least one secondary winding that are inductively coupled to each other. Furthermore, the system includes at least one controller coupled to the on-load tap changer. The controller is configured to determine a permissible voltage range defined by a bandwidth around a voltage set-point at the at least one on-load tap changer, where the bandwidth is a function of one or more electrical network states.
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公开(公告)号：US20170070134A1
公开(公告)日：2017-03-09
申请号：US15356824
申请日：2016-11-21
发明人： Daniel J. Daley , Craig A. Colopy
CPC分类号： H02M1/42 , G05F1/14 , H02M1/4216 , H02M5/10 , Y02B70/126 , Y02P80/112
摘要： Systems and methods for optimizing power factor correction between voltage regulators are described herein. The system can include a leader voltage regulator controller coupled to a first voltage regulator and a follower voltage regulator controller coupled to both a second voltage regulator and the leader voltage regulator controller. The leader voltage regulator controller can determine a difference in measured power factors between the first voltage regulator and the second voltage regulator. The leader voltage regulator controller can also initiate an adjustment of a tap position of the first voltage regulator or the second voltage regulator. Alternatively, instead of leader and follower voltage regulator controllers, the system can utilize a single connected voltage regulator controller that determines differences in measured power factors between a first voltage regulator and a second voltage regulator and initiates an adjustment in a tap position(s) when appropriate.
摘要翻译： 本文描述了用于优化调压器之间的功率因数校正的系统和方法。 该系统可以包括耦合到第一电压调节器的引线电压调节器控制器和耦合到第二电压调节器和引导电压调节器控制器的随动电压调节器控制器。 引导电压调节器控制器可以确定第一电压调节器和第二电压调节器之间的测量功率因数的差异。 引导电压调节器控制器还可以启动第一电压调节器或第二电压调节器的抽头位置的调整。 或者，代替前导和随动电压调节器控制器，系统可以利用单个连接的电压调节器控制器，其确定第一电压调节器和第二电压调节器之间的测量功率因数的差异，并且在第一电压调节器和第二电压调节器之间启动调节位置 适当。
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4.发明授权Voltage regulator for a power distribution system and method of controlling same 有权配电系统的电压调节器及其控制方法公开(公告)号：US09519299B2
公开(公告)日：2016-12-13
申请号：US14755014
申请日：2015-06-30
发明人： Daniel Joseph Daley
摘要： A method of controlling a voltage regulator having a nominal input and a nominal output structured to operate in a forward power mode wherein power flows from the input to the output and a reverse power mode wherein power flows from the output to the input. The method includes sensing current flowing through the voltage regulator, determining a direction of power flow through the voltage regulator based on the sensed current, determining a verified direction of power flow through the voltage regulator by altering a voltage between the input and the output and analyzing an effect caused thereby on at least one of a voltage at the input and a voltage at the output, and selecting a voltage regulating scheme for controlling the voltage regulator based on the verified direction of power flow.
摘要翻译： 一种控制具有标称输入和额定输出的电压调节器的方法，该额定输入被构造为以正向功率模式工作，其中功率从输入流向输出，而反向功率模式，其中功率从输出流向输入。 该方法包括检测流过电压调节器的电流，基于感测的电流确定通过电压调节器的功率流的方向，通过改变输入和输出之间的电压来确定通过电压调节器的功率流的验证方向并分析 由此对输入端的电压和输出端的电压中的至少一个产生影响，并且基于验证的功率流动方向选择用于控制电压调节器的电压调节方案。
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公开(公告)号：US20160269019A1
公开(公告)日：2016-09-15
申请号：US14644655
申请日：2015-03-11
IPC分类号： H03K17/13
摘要： Various embodiments are described herein for methods and systems of regulating incoming voltage supplied from a utility power supply to a load. In one example embodiment, a voltage regulator adapted to be electrically interposed between the utility power supply and the load, each having at least one phase, is provided. The voltage regulator comprises an autotransformer having, for each phase, a series winding and a regulating winding, where the regulating winding has a plurality of taps and the series winding has a load side for connection to the load and a supply side for connection to the utility power supply. The voltage regulator comprises a controller coupled to the autotransformer, where the controller is configured to operate the voltage regulator in a zero voltage reduction mode and an autotransformer mode, and where the controller comprises a zero voltage reduction mode switch connected across a first subset of at least two taps of each regulating winding and a normally closed contactor connected across a second subset of at least two taps of each regulating winding.
摘要翻译： 本文描述了用于调节从公用电力供应到负载的进入电压的方法和系统的各种实施例。 在一个示例性实施例中，提供了适于电连接在公用电源和负载之间的电压调节器，每个具有至少一个相位。 电压调节器包括自耦变压器，对于每个相，具有串联绕组和调节绕组，其中调节绕组具有多个抽头，并且串联绕组具有用于连接到负载的负载侧和用于连接到负载侧的供电侧 公用电源。 电压调节器包括耦合到自耦变压器的控制器，其中控制器被配置为在零电压降低模式和自耦变压器模式下操作电压调节器，并且其中控制器包括连接在第一子集上的零电压降低模式开关 每个调节绕组的至少两个抽头和连接在每个调节绕组的至少两个抽头的第二子集上的常闭接触器。
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6.发明授权公开(公告)号：US09385627B2
公开(公告)日：2016-07-05
申请号：US14492170
申请日：2014-09-22
摘要： The present disclosure is directed to universal power conversion devices for alternating current electric apparatus. One example power conversion device includes a plurality of transformers and a plurality of terminal blocks. The plurality of terminal blocks comprise at least an AC input terminal block for receiving an input alternating current signal and a primary coil terminal block. The primary coil terminal block has a plurality of output terminals respectively connected to a plurality of taps of a plurality of primary coils of the plurality of transformers. A plurality of jumpers respectively providing electrical connection between respective output terminals of the AC input terminal block and input terminals of the primary coil terminal block are selectively reconfigurable for reconfiguring a power conversion applied to the input alternating current signal by the power conversion device.
摘要翻译： 本公开涉及用于交流电气设备的通用电力转换装置。 一个示例性功率转换装置包括多个变压器和多个端子块。 多个端子块至少包括用于接收输入交流信号的AC输入端子块和初级线圈端子块。 初级线圈端子块具有分别连接到多个变压器的多个初级线圈的多个抽头的多个输出端子。 分别在AC输入端子块的各个输出端子和初级线圈端子块的输入端子之间分别提供电连接的多个跳线被选择性地重新配置，用于重新配置由功率转换装置施加到输入交流信号的功率转换。
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7.发明授权公开(公告)号：US09376026B2
公开(公告)日：2016-06-28
申请号：US13937154
申请日：2013-07-08
CPC分类号： B60L11/182 , G05F1/14 , H01F38/14 , H01F2027/348 , H02J5/005 , H02J7/025 , H02J50/12 , H02J50/40 , H02J50/70 , H02J50/80 , H02J50/90 , Y02T10/7005 , Y02T10/7072 , Y02T90/122 , Y02T90/14
摘要： This disclosure provides systems, methods and apparatus for wireless power transfer. In one aspect an apparatus for wirelessly transferring power from a charging power source to a device is provided. The apparatus includes a first strand wound in one or more turns and operationally coupled to the charging power source and a second strand wound together with the first strand in one or more turns and operationally coupled to the charging power source. The apparatus further includes an inductor circuit connected to the first strand and disconnected from the second strand. The inductor circuit is further configured to reduce a current difference between a first current flowing through the first strand and a second current flowing through the second strand.
摘要翻译： 本公开提供了用于无线电力传输的系统，方法和装置。 在一个方面，提供了一种用于将功率从充电电源无线传输到设备的装置。 该装置包括以一匝或多匝缠绕的第一股线，并且可操作地耦合到充电电源，以及以一匝或多匝缠绕在第一股线上的第二股线，并且可操作地连接到充电电源。 该装置还包括连接到第一股线并与第二股线分离的电感器电路。 电感器电路还被配置为减小流过第一股线的第一电流与流过第二股线的第二电流之间的电流差。
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公开(公告)号：US09373442B2
公开(公告)日：2016-06-21
申请号：US13642141
申请日：2011-02-23
申请人： Wolfgang Albrecht , Christian Hammer , Christian Kotz , Sebastian Rehkopf , Andreas Sachsenhausen
发明人： Wolfgang Albrecht , Christian Hammer , Christian Kotz , Sebastian Rehkopf , Andreas Sachsenhausen
CPC分类号： H01F29/04 , G05F1/14 , H01H9/0038
摘要： The invention relates to an on-load tap changer for step transformers, which has one main current branch and one auxiliary current branch for each of the two winding taps to be switched. In each main current branch and auxiliary current branch, switching is accomplished by means of a vacuum switching tube. According to the invention, an additional mechanical contact is provided in each of the main current branches and in each of the auxiliary current branches between the respective winding tap to which said branch is electrically connected and the respective vacuum switching tube in said branch. Said mechanical contacts are switched in such a way that the vacuum switching tubes in the main current branch and the auxiliary current branch of the unconnected winding tap can be galvanically isolated from the unconnected winding tap.
摘要翻译： 本发明涉及一种用于阶跃式变压器的有载抽头变换器，其具有用于要切换的两个绕组抽头中的每一个的一个主电流分支和一个辅助电流分支。 在每个主电流分支和辅助电流分支中，通过真空开关管实现切换。 根据本发明，在每个主电流分支中以及在所述分支电连接的相应绕组抽头和所述分支中的相应真空开关管之间的每个辅助电流分支中提供附加的机械接触。 所述机械触点的切换方式使得主电流分支中的真空开关管和未连接的绕组抽头的辅助电流分支可以与未连接的绕组丝锥电流隔离。
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9.发明申请VOLTAGE REGULATOR FOR A POWER DISTRIBUTION SYSTEM AND METHOD OF CONTROLLING SAME 有权电力分配系统的电压调节器及其控制方法公开(公告)号：US20160041568A1
公开(公告)日：2016-02-11
申请号：US14755014
申请日：2015-06-30
发明人： DANIEL JOSEPH DALEY
IPC分类号： G05F1/147
摘要： A method of controlling a voltage regulator having a nominal input and a nominal output structured to operate in a forward power mode wherein power flows from the input to the output and a reverse power mode wherein power flows from the output to the input. The method includes sensing current flowing through the voltage regulator, determining a direction of power flow through the voltage regulator based on the sensed current, determining a verified direction of power flow through the voltage regulator by altering a voltage between the input and the output and analyzing an effect caused thereby on at least one of a voltage at the input and a voltage at the output, and selecting a voltage regulating scheme for controlling the voltage regulator based on the verified direction of power flow.
摘要翻译： 一种控制具有标称输入和额定输出的电压调节器的方法，该额定输入被构造为以正向功率模式工作，其中功率从输入流向输出，而反向功率模式，其中功率从输出流向输入。 该方法包括检测流过电压调节器的电流，基于感测的电流确定通过电压调节器的功率流的方向，通过改变输入和输出之间的电压来确定通过电压调节器的功率流的验证方向并分析 由此对输入端的电压和输出端的电压中的至少一个产生影响，并且基于验证的功率流动方向选择用于控制电压调节器的电压调节方案。
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公开(公告)号：US09225170B2
公开(公告)日：2015-12-29
申请号：US12802847
申请日：2010-06-14
申请人： Roderick A. Hyde , Muriel Y. Ishikawa , Jordin T. Kare , Lowell L. Wood, Jr. , Victoria Y. H. Wood
发明人： Roderick A. Hyde , Muriel Y. Ishikawa , Jordin T. Kare , Lowell L. Wood, Jr. , Victoria Y. H. Wood
摘要： A smart link in a power delivery system includes an insulator, which electrically isolates a power line, and a switchable conductance placed in parallel with the insulator. The switchable conductance includes switchgear for sourcing, sinking, and/or dispatching real and/or reactive power on the power line to dynamically in response to dynamic loading, transient voltages and/or currents, and phase conditions or other conditions on the power line.
摘要翻译： 电力输送系统中的智能链路包括绝缘体，其将电力线电隔离，并且与绝缘体平行放置的可切换电导。 可切换电导包括用于在动力负载，瞬态电压和/或电流以及电力线上的相位条件或其他条件下动态地在电力线上采集，吸收和/或调度实际和/或无功功率的开关装置。
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