公开(公告)号：US09270117B2

公开(公告)日：2016-02-23

申请号：US13549866

申请日：2012-07-16

Applicant: Andreas Umland

Inventor： Andreas Umland

IPC: H02J1/00 ,  H02J3/14 ,  H02J3/26

CPC classification number: H02J3/26 ,  Y02E40/50 ,  Y10T307/414

Abstract: For levelling the partial powers which flow at a grid connection point between a multi-phase AC power grid having a plurality of phase conductors and a unit for feeding electric energy into the AC power grid having a multi-phase inverter as well as electric consumer loads connected to the AC power grid, via the individual phase conductors, differences between the partial powers flowing via the individual phase conductors are determined and are reduced by feeding different partial powers with the inverter into the individual phase conductors.

Abstract translation: 为了使在具有多个相位导体的多相交流电网之间的电网连接点处流动的部分功率和用于将电能馈送到具有多相逆变器的交流电网的单元以及电力消耗负载 通过各个相导体连接到交流电网，通过将各个相导体流过的部分功率之间的差异确定并通过将逆变器的不同部分功率馈送到各个相导体中而减小。

公开(公告)号：US09257837B2

公开(公告)日：2016-02-09

申请号：US13802438

申请日：2013-03-13

Applicant: Enecsys Limited

Inventor： Lesley Chisenga ,  Aaron Jungreis ,  Paul Garrity

IPC: H02J3/00 ,  H02J1/10 ,  H02J3/26

CPC classification number: H02J3/383 ,  H02J1/10 ,  H02J3/26 ,  H02M7/44 ,  Y02B10/14 ,  Y02E40/50 ,  Y02P80/23 ,  Y10T307/707

Abstract: Some embodiments of the invention provide a method for balancing the power output to each phase of a set of micro-inverters. The method of some embodiments is performed by a gateway, which receives output messages from a plurality of micro-inverters. The gateway identifies the phase of each micro-inverter and calculates the output of the plurality of micro-inverters to each power line of a multi-phase system. The gateway then sends control signals to the micro-inverters to control the output of each micro-inverter to maintain a balanced aggregate power output to each phase of the power grid.

Abstract translation: 本发明的一些实施例提供了一种用于平衡一组微逆变器的每相的功率输出的方法。 一些实施例的方法由网关执行，网关接收来自多个微逆变器的输出消息。 网关识别每个微逆变器的相位，并计算多个微逆变器到多相系统的每条电力线的输出。 然后，网关向微型逆变器发送控制信号，以控制每个微逆变器的输出，以维持对电网各相的平衡总功率输出。

公开(公告)号：US09190846B2

公开(公告)日：2015-11-17

申请号：US13458554

申请日：2012-04-27

Applicant: Edward Earl Eiland ,  Owen Jannis Samuel Schelenz ,  Nitin Nandkumar Joshi

Inventor： Edward Earl Eiland ,  Owen Jannis Samuel Schelenz ,  Nitin Nandkumar Joshi

IPC: H02M7/00 ,  H02M7/48 ,  H02J3/26

CPC classification number: H02J3/26 ,  Y02E40/50 ,  Y02P80/14

Abstract: A power quality management system includes a plurality of phase balancers, each phase balancer including single phase converters coupled between two phase lines and a plurality of controllers to control the plurality of phase balancers. Each controller includes a voltage unbalance detection module to detect amount of voltage unbalance in a plurality of phase lines and a voltage unbalance compensation module to generate reference current commands for each of the single phase converters to reduce the voltage unbalance.

Abstract translation: 电力质量管理系统包括多个相位平衡器，每个相位平衡器包括耦合在两相线路之间的单相转换器和多个控制器以控制多个相位平衡器。 每个控制器包括用于检测多个相位线中的电压不平衡量的电压不平衡检测模块和电压不平衡补偿模块，以产生用于每个单相转换器的参考电流命令，以减少电压不平衡。

公开(公告)号：US09172246B2

公开(公告)日：2015-10-27

申请号：US14332572

申请日：2014-07-16

Applicant: Smart Wire Grid, Inc.

Inventor： Stewart Ramsay ,  Julie A. Couillard ,  Andrija Sadikovic

IPC: H02J3/26 ,  H01H51/34 ,  H01H47/02 ,  G05F1/10 ,  H02J13/00 ,  H01F29/00 ,  H01F38/30

CPC classification number: H02J3/26 ,  H01F29/00 ,  H01F38/30 ,  H02J13/0062 ,  H02J13/0075 ,  H02J13/0079 ,  Y02E40/50 ,  Y02E60/74 ,  Y02E60/7838 ,  Y02E60/7853 ,  Y04S10/30 ,  Y04S40/124 ,  Y04S40/126 ,  Y10T307/273

Abstract: Phase balancing techniques for power transmission systems are disclosed. In one embodiment, a phase balancing protocol (240) includes executing a first phase balancing protocol (350) in relation to a first power transmission section (400a). A second phase balancing protocol (370) may be executed if the first phase balancing protocol (350) is unable to provide a phase balanced condition. The first phase balancing protocol (350) may utilize a first ordering sequence (364) to rank the current flow on the power lines (16) of the first power transmission section (400a), while the second phase balancing protocol (370) may utilize a second ordering sequence (384) to rank the current flow on the power lines (16) of the first power transmission section (400a). The order sequences (364, 384) are opposite of each other—one ranks the current flows from high-to-low, and the other ranks the current flow from low-to-high.

Abstract translation: 公开了用于输电系统的相位平衡技术。 在一个实施例中，相位平衡协议（240）包括相对于第一电力传输部分（400a）执行第一相平衡协议（350）。 如果第一相位平衡协议（350）不能提供相位平衡条件，则可以执行第二相平衡协议（370）。 第一相平衡协议（350）可以利用第一排序序列（364）对第一功率传输部分（400a）的电力线（16）上的电流进行排序，而第二相位平衡协议（370）可以利用 第二排序顺序（384），用于对第一功率传输部分（400a）的电力线（16）上的电流进行排序。 顺序序列（364,384）彼此相反，将电流从高到低排列，另一个将电流从低到高排列。

公开(公告)号：US09166410B1

公开(公告)日：2015-10-20

申请号：US13420268

申请日：2012-03-14

Applicant: Sangsun Kim ,  Anthony Tonizzo

Inventor： Sangsun Kim ,  Anthony Tonizzo

IPC: H02J3/26

CPC classification number: H02J3/26 ,  H02J13/0062 ,  Y02E40/50 ,  Y02E60/7838 ,  Y04S40/124

Abstract: System for providing AC line balancing includes a three-phase power source, a monitoring component and a control component. Three AC lines from the three-phase power source are coupled to a first set of loads and a set of transfer switches. Additionally, the set of transfer switches are configured to be coupled to a second set of loads. The monitoring component is configured to detect current provided by the three AC lines to identify the AC lines providing the highest and the lowest levels of currents to the first and second sets of loads. The control component is configured to configure at least one transfer switch in the set of transfer switches to decouple the AC line providing the highest level of current to a load of the second set of loads and couple the AC line providing the lowest level of current to that load.

Abstract translation: 用于提供AC线路平衡的系统包括三相电源，监控组件和控制组件。 来自三相电源的三条交流线耦合到第一组负载和一组转换开关。 另外，传送开关组被配置为耦合到第二组负载。 监视部件被配置为检测由三条AC线路提供的电流，以识别向第一和第二组负载提供最高和最低电平的AC线路。 所述控制部件被配置为在所述传送开关组中配置至少一个传送开关以将提供最高电平的电流的AC线路与所述第二组负载的负载分离，并将提供最低电流电平的所述AC线耦合到 那个负载。

公开(公告)号：US09128689B2

公开(公告)日：2015-09-08

申请号：US14267205

申请日：2014-05-01

Applicant: Cisco Technology, Inc.

Inventor： Shmuel Shaffer ,  Jean-Philippe Vasseur ,  Sandeep Jay Shetty

IPC: G06F1/26 ,  G01R29/16 ,  G01R29/18 ,  H02J3/26

CPC classification number: G06F1/26 ,  G01R29/16 ,  G01R29/18 ,  H02J3/14 ,  H02J3/26 ,  Y02B70/3225 ,  Y02E40/50 ,  Y04S20/222

Abstract: In one embodiment, a device in a computer network monitors an alternating-current (AC) waveform of an electrical power source at the device, where the power source is part of a polyphase power source system. Once the device determines a particular phase of the polyphase power source system at the device, then the device joins a directed acyclic graph (DAG) specific to the particular phase. In another embodiment, a device detects a time of a zero crossing of the AC waveform, and may then determine a particular phase of the polyphase power source system at the device based on the time of the zero crossing relative to a corresponding location within a frequency hopping superframe of the computer network.

Abstract translation: 在一个实施例中，计算机网络中的设备监视设备处的电源的交流（AC）波形，其中电源是多相电源系统的一部分。 一旦器件确定器件上的多相电源系统的特定相位，器件将连接特定相位的有向非循环图（DAG）。 在另一个实施例中，设备检测AC波形的过零时间，然后可以基于相对于频率内的对应位置的过零点的时间来确定设备处的多相电源系统的特定相位 跳台超级计算机网络。

公开(公告)号：US08880228B2

公开(公告)日：2014-11-04

申请号：US13360874

申请日：2012-01-30

Applicant: Sathees Kumar

Inventor： Sathees Kumar

IPC: G05D3/12 ,  G05D5/00 ,  G05D9/00 ,  G05D11/00 ,  G05D17/00 ,  F03D9/00 ,  H02P9/04 ,  H02J3/38 ,  H02J3/26

CPC classification number: H02J3/26 ,  H02J3/386 ,  Y02E10/763 ,  Y02E40/50

Abstract: A system is provided for mitigating an electric unbalance of a three-phase current at a Point of Common Coupling being located between a wind farm having a plurality of wind turbines and a power grid. The system includes a measurement device and a central wind farm controller. The measurement device measures the electric unbalance at the Point of Common Coupling and provides a measurement signal being indicative for the measured electric unbalance. The central wind farm controller is coupled to the measurement device and controls the operation of the plurality of wind turbines. In response to the measurement signal the central wind farm provides a control signal for mitigating the electric unbalance at the Point of Common Coupling. Also provided is a corresponding method for mitigating an electric unbalance of a three-phase current and a computer program for controlling and/or for carrying out the mentioned method.

Abstract translation: 提供了一种用于减轻在具有多个风力涡轮机的风力发电场和电网之间的公共耦合点处的三相电流的电不平衡的系统。 该系统包括测量装置和中央风电场控制器。 测量装置测量公共耦合点处的电气不平衡，并提供测量信号，指示测量的电气不平衡。 中央风电场控制器耦合到测量装置并且控制多个风力涡轮机的操作。 响应于测量信号，中央风电场提供用于减轻公共耦合点处的电不平衡的控制信号。 还提供了用于减轻三相电流的电不平衡的相应方法和用于控制和/或执行所述方法的计算机程序。

公开(公告)号：US08816527B1

公开(公告)日：2014-08-26

申请号：US14227995

申请日：2014-03-27

Applicant: Smart Wire Grid, Inc.

Inventor： Stewart Ramsay ,  Julie A. Couillard ,  Andrija Sadikovic

IPC: H02J3/26 ,  H01H51/34 ,  H01H47/02 ,  G05F1/10

CPC classification number: H02J3/26 ,  H01F29/00 ,  H01F38/30 ,  H02J13/0062 ,  H02J13/0075 ,  H02J13/0079 ,  Y02E40/50 ,  Y02E60/74 ,  Y02E60/7838 ,  Y02E60/7853 ,  Y04S10/30 ,  Y04S40/124 ,  Y04S40/126 ,  Y10T307/273

Abstract: Phase balancing techniques for power transmission systems are disclosed. In one embodiment, a phase balancing protocol (240) includes executing a first phase balancing protocol (350) in relation to a first power transmission section (400a). A second phase balancing protocol (370) may be executed if the first phase balancing protocol (350) is unable to provide a phase balanced condition. The first phase balancing protocol (350) may utilize a first ordering sequence (364) to rank the current flow on the power lines (16) of the first power transmission section (400a), while the second phase balancing protocol (370) may utilize a second ordering sequence (384) to rank the current flow on the power lines (16) of the first power transmission section (400a). The order sequences (364, 384) are opposite of each other—one ranks the current flows from high-to-low, and the other ranks the current flow from low-to-high.

Abstract translation: 公开了用于输电系统的相位平衡技术。 在一个实施例中，相位平衡协议（240）包括相对于第一电力传输部分（400a）执行第一相平衡协议（350）。 如果第一相位平衡协议（350）不能提供相位平衡条件，则可以执行第二相平衡协议（370）。 第一相平衡协议（350）可以利用第一排序序列（364）对第一功率传输部分（400a）的电力线（16）上的电流进行排序，而第二相位平衡协议（370）可以利用 第二排序顺序（384），用于对第一功率传输部分（400a）的电力线（16）上的电流进行排序。 顺序序列（364,384）彼此相反，将电流从高到低排列，另一个将电流从低到高排列。

公开(公告)号：US20090167080A1

公开(公告)日：2009-07-02

申请号：US11964410

申请日：2007-12-26

Applicant: Brian A. Carpenter ,  Christopher J. Sanzo ,  Biranchinath Sahu ,  Tetsuo Tateishi

Inventor： Brian A. Carpenter ,  Christopher J. Sanzo ,  Biranchinath Sahu ,  Tetsuo Tateishi

IPC: H02J3/26

CPC classification number: H02M3/1584 ,  Y10T307/273

Abstract: A converter for a multi-phase current network can include a plurality of current sensors, each of the plurality of current sensors being configured to detect current for a respective phase of the multi-phase network. A current averaging circuit is configured to provide an indication of the average current for the multi-phase network based on the current detected by each of the plurality of current sensors. A modulator is configured to modulate at least one phase of the multi-phase network independently of each other phase of the multi-phase network based on a difference between the current detected for the at least one phase and the average current for the multi-phase network.

Abstract translation: 用于多相电流网络的转换器可以包括多个电流传感器，所述多个电流传感器中的每个电流传感器被配置为检测多相网络的各个相位的电流。 电流平均电路被配置为基于由多个电流传感器中的每一个检测到的电流来提供多相网络的平均电流的指示。 调制器被配置为基于对于至少一个相位检测的电流与多相的平均电流之间的差异来独立于多相网络的每个其他相位来调制多相网络的至少一个相位 网络。

公开(公告)号：US07368830B2

公开(公告)日：2008-05-06

申请号：US10732837

申请日：2003-12-11

Applicant: Andrew J. Cleveland ,  Carrel W. Ewing ,  James P. Maskaly

Inventor： Andrew J. Cleveland ,  Carrel W. Ewing ,  James P. Maskaly

IPC: H02J3/26 ,  G01R29/16

CPC classification number: H02G3/00 ,  H01R13/6691 ,  H01R25/003 ,  H01R2103/00 ,  H02H3/08 ,  Y10T307/266

Abstract: A polyphase power distribution and monitoring apparatus having sets of outputs for each phase of power and monitors for each phase of power disposed in the housing. Each monitor provides a visible display of current for an associated phase of power and an audible alarm for each phase of power if the current exceeds a predetermined value or falls below a predetermined value. In three-phase wye power systems, the apparatus preferably includes a neutral line monitor, including a neutral line current display and audio alarm, for the neutral line of the wye power circuit. The apparatus preferably is lightweight, elongated, portable, and mountable to the side of an electronic equipment rack. It may also include additional power monitoring systems such as network power monitoring tools for remotely monitoring the apparatus.

Abstract translation: 一种多相配电和监测装置，其具有用于每个电力相位的输出的集合以及设置在壳体中的每个电力阶段的监视器。 如果电流超过预定值或低于预定值，则每个监视器提供用于每相电力相关联的电力相关电流的电流的可视显示。 在三相叶片动力系统中，该装置优选地包括用于线圈功率电路的中性线的中性线监视器，包括中性线电流显示和音频警报。 该装置优选地是轻质的，细长的，便携的并可安装到电子设备机架的一侧。 它还可以包括附加的电力监控系统，例如用于远程监控设备的网络电力监控工具。