公开(公告)号：US20140159483A1

公开(公告)日：2014-06-12

申请号：US14101985

申请日：2013-12-10

Applicant: The Research Foundation for the State University of New York

Inventor： Thomas G. ROBERTAZZI ,  Steven SKIENA ,  Kai WANG

IPC: H02J3/26

CPC classification number: H02J3/26 ,  H02J2003/007 ,  Y02E40/50 ,  Y02E60/76 ,  Y04S40/22 ,  Y10T307/273

Abstract: Provided are an apparatus and method for load-balancing of a three-phase electric power distribution system having a multi-phase feeder, including obtaining topology information of the feeder identifying supply points for customer loads and feeder sections between the supply points, obtaining customer information that includes peak customer load at each of the points between each of the feeder sections, performing a phase balancing analysis, and recommending phase assignment at the customer load supply points.

Abstract translation: 提供一种用于具有多相馈线的三相配电系统的负载平衡的装置和方法，包括获取馈线的拓扑信息，用于识别用户负载的供电点和供电点之间的馈线部分，从而获得客户信息 其包括在每个馈送器部分之间的每个点处的客户负载峰值，执行相位平衡分析，以及在客户负载供应点处推荐相位分配。

公开(公告)号：US20140132076A1

公开(公告)日：2014-05-15

申请号：US14160478

申请日：2014-01-21

Applicant: Altenergy Power System, Inc.

Inventor： Yuhao Luo ,  Dongming ZHOU

IPC: H02M7/42

CPC classification number: H02M7/42 ,  H02J3/26 ,  H02M7/493 ,  H02M2001/0032 ,  Y02B70/16 ,  Y02E10/56 ,  Y02E40/50 ,  Y10T307/707

Abstract: The invention provides a solar photovoltaic three-phase micro-inverter system comprising a plurality of three-phase micro-inverters. Every three of the three-phase micro-inverters form a group and are coupled to a three-phase AC power grid. Each of the three-phase micro-inverters comprises 3 single-phase inverter circuits, each of the single-phase inverter circuits comprises 2 conversion circuits, and each of the conversion circuits corresponds to one phase of the three-phase AC power grid. AC outputs of the same conversion circuits of the three micro-inverters in one group are coupled to three-phase live wires of the three-phase AC power grid respectively. Accordingly, the invention provides a method for improving conversion efficiency of the solar photovoltaic three-phase micro-inverter system.

Abstract translation: 本发明提供一种包括多个三相微逆变器的太阳能光伏三相微逆变器系统。 三相微逆变器中的每三个组成一组并耦合到三相交流电网。 每个三相微逆变器包括3个单相逆变器电路，每个单相逆变器电路包括2个转换电路，并且每个转换电路对应于三相交流电网的一相。 一组三个微逆变器的相同转换电路的交流输出分别耦合到三相交流电网的三相带电线。 因此，本发明提供了一种提高太阳能光伏三相微逆变器系统的转换效率的方法。

公开(公告)号：US08712711B2

公开(公告)日：2014-04-29

申请号：US13187765

申请日：2011-07-21

Applicant: Nitin Nayar ,  Jeffrey D. Taft ,  Navindra Yadav

Inventor： Nitin Nayar ,  Jeffrey D. Taft ,  Navindra Yadav

IPC: G06F19/00 ,  G01R25/00 ,  G01R29/18 ,  H02J13/00 ,  H02J3/26

CPC classification number: G01R29/18 ,  H02J3/26 ,  H02J13/0013 ,  Y02E40/50 ,  Y02E60/7807 ,  Y04S40/12

Abstract: In one embodiment, a requesting device (e.g., head-end application) requests a phase-related response from an end-point that does not know its phase in a polyphase power source system. In response, the requesting device receives the phase-related response from the end-point, where the response relays an identification of the end-point and related phase information without indicating an actual phase of the end-point, e.g., on which power-line is a response generated or at which time is a zero-crossing of the power source's waveform. The phase information of the phase-related response may then be correlated to a known phase of a known-phase device, such that the actual phase of the end-point may be identified based on the correlation.

Abstract translation: 在一个实施例中，请求设备（例如，头端应用）从不知道在多相电源系统中的相位的端点请求与相位相关的响应。 作为响应，请求设备从端点接收与相关相关的响应，其中响应中继端点和相关相位信息的标识，而不指示端点的实际相位，例如，哪个功率 - 线路是产生的响应，或者在该时间是电源波形的过零点。 然后可以将相位相关响应的相位信息与已知相位装置的已知相位相关联，使得可以基于相关性来识别端点的实际相位。

公开(公告)号：US08698334B2

公开(公告)日：2014-04-15

申请号：US12761864

申请日：2010-04-16

Applicant: Yin Bo ,  Heng Deng ,  Ove Styhm ,  Kim B. Larsen

Inventor： Yin Bo ,  Heng Deng ,  Ove Styhm ,  Kim B. Larsen

IPC: F03D9/00 ,  H02P9/04

CPC classification number: H02J3/26 ,  H02J3/1878 ,  H02J3/386 ,  Y02E10/763 ,  Y02E40/30 ,  Y02E40/50

Abstract: A wind park, a method of correcting voltage imbalances, and a wind turbine are provided. The wind park includes at least one wind turbine; a transformer coupled between the at least one wind turbine and a power grid. The transformer includes a primary winding arrangement coupled to the power grid, and a secondary winding arrangement coupled to the at least one wind turbine. The power grid includes at least three power lines, each power line conducting a respective phase of a multi-phase current. Each power line of the power grid is coupled to the primary winding arrangement via an individual tap changer. Influences of the detected voltage imbalances on the wind turbines can be compensated.

Abstract translation: 提供风电场，电压不平衡校正方法和风力涡轮机。 风力发电场包括至少一个风力涡轮机; 耦合在所述至少一个风力涡轮机和电力网之间的变压器。 变压器包括耦合到电网的初级绕组装置，以及耦合到至少一个风力涡轮机的次级绕组装置。 电网包括至少三条电力线，每条电力线进行多相电流的相应相位。 电网的每个电力线通过单独的抽头变换器耦合到初级绕组装置。 可以补偿检测到的电压不平衡对风力涡轮机的影响。

公开(公告)号：US20140063870A1

公开(公告)日：2014-03-06

申请号：US14010621

申请日：2013-08-27

Applicant: John Channing Bousfield, III

Inventor： John Channing Bousfield, III

IPC: H02H7/12 ,  H02M5/458

CPC classification number: H02H7/1216 ,  H02J3/26 ,  H02M1/32 ,  H02M5/458 ,  H02M7/49 ,  H02M7/53873 ,  H02M2001/325 ,  Y02E40/50

Abstract: A method is provided for operating a multi-cell power supply that includes multiple series-connected power cells in each of multiple legs. Each power cell includes a bypass device that may be used to selectively bypass and de-bypass the power cell. After a first power cell faults and is bypassed as a result of the fault, the method includes de-bypassing the first power cell without stopping the multi-cell power supply if the first power cell fault was caused by a predetermined operating condition. Numerous other aspects are provided.

Abstract translation: 提供了一种用于操作多单元电源的方法，所述多单元电源在多个支路中的每一个中包括多个串联连接的功率单元。 每个功率单元包括可用于选择性地绕过和去旁路功率单元的旁路装置。 在第一功率单元故障并且由于故障而被旁路的情况下，如果第一功率单元故障是由预定的操作条件引起的，则该方法包括：不旁路第一功率单元而不停止多单元电源。 提供了许多其他方面。

公开(公告)号：US20140055182A1

公开(公告)日：2014-02-27

申请号：US14070229

申请日：2013-11-01

Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.

Inventor： Russel J. Kerkman ,  Carlos D. Rodriguez-Valdez

IPC: H02J3/26

CPC classification number: H02J3/26 ,  G01R25/00 ,  G01R29/18 ,  H02J3/44

Abstract: A system and method for controlling an electrical device is provided. The method comprises receiving three phase power from a source, decomposing signals representative of power in each phase of the three phase power to provide a positive-sequence component of each phase and tracking the positive-sequence component of each phase via a phase locked loop and a tracking filter.

Abstract translation: 提供了一种用于控制电气设备的系统和方法。 该方法包括从源接收三相功率，分解代表三相功率的每相中的功率的信号，以提供每相的正序分量，并通过锁相环追踪每相的正序分量; 跟踪过滤器

公开(公告)号：US08648491B2

公开(公告)日：2014-02-11

申请号：US12892300

申请日：2010-09-28

Applicant: Andrew James Phelan ,  Michael Stearns ,  Minh H. Nguyen ,  Chanh V. Hua ,  Raghavan V. Venugopal ,  David Paul Mohr

Inventor： Andrew James Phelan ,  Michael Stearns ,  Minh H. Nguyen ,  Chanh V. Hua ,  Raghavan V. Venugopal ,  David Paul Mohr

IPC: H02J3/00

CPC classification number: H02J3/26 ,  Y02E40/50 ,  Y10T307/266 ,  Y10T307/50

Abstract: Methods, devices, and systems for passive impedance matching are provided. An example of a method of passive impedance matching includes provided a substantially equivalent impedance between a source and a load for three single-phase power supplies via a geometry of a busbar. The busbar can be coupled to the three-phase power supplies as the source and coupled to a plurality of electronic machines as the load.

Abstract translation: 提供了无源阻抗匹配的方法，设备和系统。 无源阻抗匹配方法的一个例子包括经由母线的几何形状为三个单相电源提供源和负载之间的基本等效的阻抗。 母线可以作为源耦合到三相电源，并且作为负载耦合到多个电子机器。

公开(公告)号：US08643383B2

公开(公告)日：2014-02-04

申请号：US13016111

申请日：2011-01-28

Applicant: Yuan Xiao ,  Lixiang Wei ,  Doyle F. Busse

Inventor： Yuan Xiao ,  Lixiang Wei ,  Doyle F. Busse

IPC: G01R31/12 ,  H01G2/12 ,  G05B5/00

CPC classification number: G01R31/2843 ,  G01R31/42 ,  H02H7/0811 ,  H02H7/1203 ,  H02H7/16 ,  H02J3/1821 ,  H02J3/26 ,  H02M1/42 ,  H02M5/458 ,  H02P29/0241 ,  Y02E40/30 ,  Y02E40/50

Abstract: The present techniques include methods and systems for detecting a failure in a capacitor bank of an electrical drive system. Embodiments include using discharge resistors to discharge capacitors in the capacitor bank, forming a neutral node of the capacitor bank. In different capacitor configurations, the neutral node is measured, and the voltage is analyzed to determine whether a capacitor bank unbalance has occurred. In some embodiments, the node is a neutral-to-neutral node between the discharged side of the discharge resistors and a neutral side of the capacitor bank, or between the discharged side of the discharge resistors and a discharged side of a second set of discharge resistors. In some embodiments, the node is a neutral-to-ground node between the discharged side of the discharge resistors and a ground potential.

Abstract translation: 本技术包括用于检测电驱动系统的电容器组中的故障的方法和系统。 实施例包括使用放电电阻器对电容器组中的电容器进行放电，形成电容器组的中性点。 在不同的电容器配置中，测量中性点，并分析电压以确定电容器组是否发生不平衡。 在一些实施例中，节点是放电电阻器的放电侧和电容器组的中性侧之间或放电电阻器的放电侧和第二组放电的放电侧之间的中性点至中性节点 电阻 在一些实施例中，节点是放电电阻器的放电侧和接地电位之间的中性点对地节点。

公开(公告)号：US20140031997A1

公开(公告)日：2014-01-30

申请号：US13556781

申请日：2012-07-24

Applicant: Maharaj Mukherjee

Inventor： Maharaj Mukherjee

IPC: G06F1/26

CPC classification number: H02J3/26 ,  H02J3/28 ,  H02J2003/003 ,  Y04S10/54

Abstract: Predictive phase balancing is implemented by a host system computer and logic executable by the host system computer. The logic is configured to receive customer demand profiles from each customer serviced by a poly-phase grid network and create a demand forecast from anticipated power demands collected from the customer demand profiles. Creating the customer demand profiles includes breaking down loads for each customer by corresponding phases in the poly-phase power grid network. The loads correspond to the anticipated power demands. The logic is also configured to balance the loads among each of the phases based on any load imbalances determined from the demand forecast.

Abstract translation: 主机系统计算机和主机系统计算机可执行的逻辑执行预测相位平衡。 该逻辑被配置为从由多相网格网络服务的每个客户端接收客户需求简档，并根据从客户需求简档收集的预期功率需求创建需求预测。 创建客户需求配置文件包括通过多相电网网络中的相应阶段为每个客户分解负载。 负载对应于预期的功率需求。 该逻辑还被配置为基于从需求预测确定的任何负载不平衡来平衡每个相中的负载。

公开(公告)号：US20140001886A1

公开(公告)日：2014-01-02

申请号：US13534120

申请日：2012-06-27

Applicant: Shailender Singireddy ,  Sridhar Nedunsezian ,  Balakrishna Pamulaparthy

Inventor： Shailender Singireddy ,  Sridhar Nedunsezian ,  Balakrishna Pamulaparthy

IPC: G01R25/00 ,  H02J3/00

CPC classification number: H02J3/24 ,  G01R29/18 ,  H02J3/08 ,  H02J3/26 ,  Y10T307/839

Abstract: A system and method to perform automatic phase reversal detection are described. The system includes a first subsystem and a second subsystem configured to be synchronized with the first subsystem. A controller is configured to receive a first input from the first subsystem or the second subsystem and a second input from the first subsystem or the second subsystem and perform phase reversal detection based on the first input and the second input.

Abstract translation: 描述了执行自动相位检测的系统和方法。 该系统包括被配置为与第一子系统同步的第一子系统和第二子系统。 控制器被配置为从第一子系统或第二子系统接收第一输入，并且从第一子系统或第二子系统接收第二输入，并且基于第一输入和第二输入执行相位检测。