公开(公告)号：US20180219381A1

公开(公告)日：2018-08-02

申请号：US15881317

申请日：2018-01-26

Applicant: Duke Energy Corporation ,  The University of North Carolina at Charlotte

Inventor： Stuart Laval ,  Aleksandar Vukojevic ,  Somasundaram Essakiappan ,  Madhav Manjrekar ,  Ehab Shoubaki

IPC: H02J3/38

CPC classification number: H02J3/01 ,  G01R22/061 ,  H02J3/14 ,  H02J3/18 ,  H02J3/1828 ,  H02J3/32 ,  H02J3/38 ,  H02J3/381 ,  H02J3/383 ,  H02J3/387 ,  H02J5/00 ,  H02J13/0075 ,  H02J13/0082 ,  H02J13/0086 ,  H02J2003/143 ,  H02M7/66 ,  Y02B70/3266 ,  Y02B90/222 ,  Y02E10/563 ,  Y02E10/566 ,  Y02E40/30 ,  Y02E40/40 ,  Y02E40/72 ,  Y02E70/30 ,  Y04S10/123 ,  Y04S20/12 ,  Y04S20/242

Abstract: Apparatuses including power electronics circuitry are provided. The power electronics circuitry includes at least one power converter that is coupled to a DC bus. Moreover, in some embodiments, the at least one power converter is configured to regulate a voltage of the DC bus. Related methods of operating an apparatus including power electronics circuitry are also provided.

公开(公告)号：US20170321497A1

公开(公告)日：2017-11-09

申请号：US15526647

申请日：2015-11-03

Applicant: CJS Production Technologies Inc.

Inventor： Collin Rickey Morris ,  John Rickey Morris

IPC: E21B17/20 ,  F16L9/19 ,  F16L3/237

CPC classification number: E21B17/203 ,  F16L3/237 ,  F16L9/19 ,  H02J1/10 ,  H02J3/18 ,  H02J3/1828 ,  H02J7/345 ,  H02J7/35 ,  H02J13/00 ,  Y02E10/766 ,  Y02E40/30 ,  Y02E40/72 ,  Y04S10/123

Abstract: In a coiled tubing assembly for use in a wellbore, the tubing assembly uses longitudinally spaced apart clamping members to clamp two or more coiled tubing members alongside one another. Each clamping member includes a clamping portion extending circumferentially about each coiled tubing member so as to be rotatable in relation thereto, and a connecting portion joined between the clamping portions. A longitudinal positioning element is fixed relative to one of the tubing members in association with each clamping member such that the clamping member remains pivotal relative to the positioning element and the tubing members upon which it is fixed. The longitudinal positioning element thus only restricts the respective clamping assembly in the longitudinal direction along the tubing members without restricting relative twisting between the tubing members.

公开(公告)号：US09356503B2

公开(公告)日：2016-05-31

申请号：US13458760

申请日：2012-04-27

Applicant: Todd Shudarek ,  Jean-Yves Schneider

Inventor： Todd Shudarek ,  Jean-Yves Schneider

IPC: H02J1/02 ,  H02M1/12 ,  H02M1/14 ,  H02J3/18 ,  H02J3/24 ,  H01F27/255 ,  H01F27/34 ,  H02J3/01

CPC classification number: H02M1/126 ,  H01F27/255 ,  H01F27/34 ,  H02J3/01 ,  H02J3/1828 ,  H02J3/24 ,  Y02E40/30 ,  Y02E40/40

Abstract: In one embodiment, the instant invention can provide a harmonic mitigating device that can include at least the following components: an active filter; a passive filter; c) at least one control switch, where the at least one control switch operationally controls whether the at least one active filter or the at least one passive filter can be utilized by the harmonic mitigation device to mitigate at least one harmonic current flow, and where the at least one control switch operationally switches the harmonic mitigation device from utilizing the at least one active filter to utilizing the at least one passive filter when a current load exceeds a predetermined percent of a full current load.

Abstract translation: 在一个实施例中，本发明可以提供一种可以包括至少以下组件的谐波减轻装置：有源滤波器; 无源滤波器; c）至少一个控制开关，其中所述至少一个控制开关可操作地控制所述至少一个有源滤波器或所述至少一个无源滤波器是否可被所述谐波抑制装置利用以减轻至少一个谐波电流，并且其中 当电流负载超过全电流负载的预定百分比时，所述至少一个控制开关可操作地将谐波缓解装置从利用所述至少一个有源滤波器切换到利用所述至少一个无源滤波器。

公开(公告)号：US09287711B2

公开(公告)日：2016-03-15

申请号：US13108162

申请日：2011-05-16

Applicant: James Joseph Schmid

Inventor： James Joseph Schmid

IPC: G06F1/28 ,  H02J3/18 ,  H02J3/16 ,  H02J13/00

CPC classification number: H02J3/1828 ,  H02J3/16 ,  H02J13/0062 ,  H02J13/0079 ,  H02J13/0086 ,  Y02E40/34 ,  Y02E40/74 ,  Y02E60/726 ,  Y02E60/7838 ,  Y04S10/22 ,  Y04S10/24 ,  Y04S40/124

Abstract: A method for reducing the effects of a demand/response event in a power distribution network can include identifying a load profile in the power distribution network, in response to detecting a peak in the load profile, decreasing the voltage in the power distribution network and, in response to detecting a trough in the load profile, increasing the voltage in the power distribution network.

Abstract translation: 响应于检测到负载分布中的峰值，降低配电网络中的电压，减少配电网络中的需求/响应事件的影响的方法可以包括识别配电网络中的负载曲线， 响应于检测到负载曲线中的槽，增加配电网络中的电压。

公开(公告)号：US20150168981A1

公开(公告)日：2015-06-18

申请号：US14105546

申请日：2013-12-13

Applicant: General Electric Company

Inventor： John Paul SKLIUTAS ,  Chris Owen SCHARTNER ,  Miaolei SHAO

IPC: G05F1/70

CPC classification number: H02J3/1885 ,  H02J3/1828 ,  H02J3/1878 ,  H02J13/0006 ,  Y02E40/30 ,  Y02E40/32 ,  Y02E40/74 ,  Y04S10/22

Abstract: A hybrid high inertia synchronous condenser facility for delivering reactive power to an electrical grid comprises at least one synchronous condenser, a voltage transformer connecting the at least one synchronous condenser to an electrical grid, at least one bank of capacitors switchably connected to the electrical grid, at least one bank of reactors switchably connected to the electrical grid, and a controller for controlling connection of the voltage transformer, the at least one bank of shunt capacitors, and the at least one bank of shunt reactors to the electrical grid. The synchronous condenser is equipped with a flywheel.

Abstract translation: 用于向电网输送无功功率的混合式高惯量同步电容器设备包括至少一个同步电容器，将至少一个同步电容器连接到电网的电压互感器，至少一组可切换地连接到电网的电容器， 至少一个电抗器组可切换地连接到所述电网，以及用于控制所述电压变压器，所述至少一组分流电容器和所述至少一个并联电抗器组到所述电网的连接的控制器。 同步冷凝器配有飞轮。

公开(公告)号：US09014867B2

公开(公告)日：2015-04-21

申请号：US13488330

申请日：2012-06-04

Applicant: Deepakraj Divan ,  Andrew Dillon

Inventor： Deepakraj Divan ,  Andrew Dillon

IPC: G05D3/12 ,  G05B13/02 ,  H02J3/18

CPC classification number: H02J3/16 ,  G05B13/02 ,  G05B15/02 ,  H02J3/1828 ,  Y02E40/34 ,  Y04S10/22

Abstract: Systems and methods for an edge of network voltage control of a power grid are described. In some embodiments, a system comprises a distribution power network, a plurality of loads, and a plurality of shunt-connected, switch-controlled VAR sources. The loads may be at or near an edge of the distribution power network. Each of the loads may receive power from the distribution power network. The plurality of shunt-connected, switch-controlled VAR sources may be located at the edge or near the edge of the distribution power network where they may each detect a proximate voltage. Further, each of the VAR sources may comprise a processor and a VAR compensation component. The processor may be configured to enable the VAR source to determine whether to enable the VAR compensation component based on the proximate voltage and to adjust network volt-ampere reactive by controlling a switch to enable the VAR compensation component.

Abstract translation: 描述了电力网络电压控制边缘的系统和方法。 在一些实施例中，系统包括分配电力网络，多个负载以及多个并联连接的开关控制的VAR源。 负载可以在分配电力网络的边缘处或附近。 每个负载可以从分配电力网络接收电力。 多个分流连接的开关控制的VAR源可以位于分配电力网络的边缘或附近，其中它们可以每个检测到接近的电压。 此外，每个VAR源可以包括处理器和VAR补偿组件。 处理器可以被配置为使得VAR源能够基于邻近电压来确定是否启用VAR补偿分量，并且通过控制开关来使能VAR补偿分量来调节网络伏安电平。

公开(公告)号：US20150008766A1

公开(公告)日：2015-01-08

申请号：US14318020

申请日：2014-06-27

Applicant: Ove Boe ,  Espen Haugan

Inventor： Ove Boe ,  Espen Haugan

IPC: H02J3/22

CPC classification number: H02J3/22 ,  H02J3/1821 ,  H02J3/1828 ,  H02J3/34 ,  Y02E40/30

Abstract: Methods for transferring electrical power in the sea include: generating AC power; and guiding, at least partially underwater, the AC power through a cable from a first end of the cable to a second end of the cable. A first reactor is connected near the first end of the cable and a second reactor is connected near the second end of the cable. Inductances of the first reactor and the second reactor are selected to at least partially compensate for reactive power generated in the cable.

Abstract translation: 在海上传输电力的方法包括：产生交流电; 并且至少部分地将水中的AC电力通过电缆从电缆的第一端引导到电缆的第二端。 第一反应器连接在电缆的第一端附近，并且第二反应器连接在电缆的第二端附近。 第一反应器和第二反应器的电感被选择为至少部分地补偿在电缆中产生的无功功率。

公开(公告)号：US08922175B2

公开(公告)日：2014-12-30

申请号：US13076475

申请日：2011-03-31

Applicant: Michael Joseph Krok ,  Sahika Genc

Inventor： Michael Joseph Krok ,  Sahika Genc

IPC: G05F1/70 ,  H02J3/18 ,  H02J3/38 ,  G06Q10/06 ,  G06Q50/00 ,  G06Q50/06 ,  H02J3/00

CPC classification number: H02J3/1828 ,  G06Q10/06 ,  G06Q50/00 ,  G06Q50/06 ,  H02J3/381 ,  H02J3/382 ,  H02J3/383 ,  H02J3/386 ,  H02J2003/003 ,  Y02E10/563 ,  Y02E10/763 ,  Y02E40/30 ,  Y02E40/76 ,  Y04S10/54 ,  Y04S10/545

Abstract: A method of operating capacitor banks includes obtaining a reactive power shortage curve forecast for a time period. At least one capacitor bank power schedule curve is generated to supply reactive power to the power grid during the time period. The at least one capacitor bank power schedule curve is updated to generate an optimized capacitor bank power schedule curve to reduce the area between the reactive power shortage curve and the capacitor bank power schedule curve. The method also includes providing switching signal commands for operating capacitor banks based on the optimized capacitor bank power schedule curve.

Abstract translation: 一种操作电容器组的方法包括获得一段时间内的无功功率不足曲线预测。 产生至少一个电容器组功率调度曲线，以在该时间段内向电网提供无功功率。 更新至少一个电容器组功率调度曲线以产生优化的电容器组功率调度曲线，以减小无功功率不足曲线和电容器组功率调度曲线之间的面积。 该方法还包括基于优化的电容器组功率调度曲线提供用于操作电容器组的开关信号命令。

公开(公告)号：US20140042991A1

公开(公告)日：2014-02-13

申请号：US14055558

申请日：2013-10-16

Applicant: POWERMAG, LLC

Inventor： Robert V. ALBERTSON

IPC: H02J3/18 ,  H02J3/01

CPC classification number: H02J3/1828 ,  G05F1/70 ,  H01G9/00 ,  H01P1/212 ,  H02J3/01 ,  H02J3/1835

Abstract: Systems and methods are disclosed herein to a power factor adjustor comprising: a power factor measurement unit configured to measure the power factor on an input line to a load and generate a power factor correction signal based on the measured power factor; and a power factor adjustment unit connected to the power factor measurement unit comprising: a fixed capacitor connected in series to a first switching device; and an adjustable element having a variable capacitance connected in parallel to the fixed capacitor and in series to a second switching device, wherein the overall capacitance of the power factor adjustment unit is adjusted by adjusting the capacitance of the adjustable element or by toggling the first and second switching devices in response to the power factor correction signal.

Abstract translation: 本文公开了一种功率因数调节器的系统和方法，包括：功率因数测量单元，被配置为测量到负载的输入线上的功率因数，并且基于所测量的功率因数产生功率因数校正信号; 以及连接到所述功率因数测量单元的功率因数调节单元，包括：与第一开关器件串联连接的固定电容器; 以及可调元件，其具有与固定电容器并联连接并与第二开关器件串联的可变电容，其中功率因数调节单元的总体电容通过调节可调节元件的电容或通过切换第一和第 第二开关器件响应于功率因数校正信号。

公开(公告)号：US08569909B2

公开(公告)日：2013-10-29

申请号：US13340837

申请日：2011-12-30

Applicant: Stefan Thorburn ,  Lars Liljestrand ,  Ake Petersson

Inventor： Stefan Thorburn ,  Lars Liljestrand ,  Ake Petersson

IPC: H02J3/26

CPC classification number: H02J3/1828 ,  Y02E40/30 ,  Y10T307/273 ,  Y10T307/76

Abstract: An arrangement to control an electrical property of a medium or high voltage AC system including a number n of phases with n being at least two includes a number n of phases, each phase including a series connection of at least two electrical elements with an intermediate connection point between each pair of the at least two electrical elements, where each of the n phases of the arrangement is connected on one side to an original common neutral point and on the other side to one of the n phases of the AC system. The arrangement further includes a number of first switchable interconnections, where the first switchable interconnections are each arranged between two intermediate connection points of two of the n phases of the arrangement, and at least one control unit arranged to control the first switchable interconnections.

Abstract translation: 用于控制包括n个至少为2个相数的n个相位的中等或高压AC系统的电气特性的装置包括n个相位，每相包括至少两个电气元件与中间连接的串联连接 在每对所述至少两个电气元件之间的点之间，其中所述布置的所述n个相的每一个在一侧连接到原始公共中性点，并且在另一侧连接到所述AC系统的n个相中的一个。 该布置还包括多个第一可切换互连，其中第一可切换互连各自布置在该布置的n个相中的两个的两个中间连接点之间，以及至少一个控制单元，其布置成控制第一可切换互连。