公开(公告)号：US08093871B2

公开(公告)日：2012-01-10

申请号：US12272731

申请日：2008-11-17

申请人： John F. Jackman

发明人： John F. Jackman

IPC分类号： G05F5/00

CPC分类号： G05F1/70 ,  H02J3/1828 ,  Y02E40/30

摘要： In one example embodiment, a power control system includes one or more stages, a plurality of primary busbars operatively coupled to the one or more stages, and an intelligent controller operatively coupled to the one or more stages. Each of the one or more stages is configured to generate a lead current when coupled in parallel to a power distribution system, and at least one of the one or more stages comprises a notch filter and a power tank circuit. Each of the plurality of primary busbars is configured to carry one phase of a multiple phase power signal. The controller is configured to determine when to switch each of the one or more stages one and off, to count a number of times each stage is switched on, and to track one or more electrical parameters of the power distribution system, power control system, or both.

摘要翻译： 在一个示例性实施例中，功率控制系统包括一个或多个级，可操作地耦合到所述一个或多个级的多个主母线，以及可操作地耦合到所述一个或多个级的智能控制器。 所述一个或多个级中的每一个被配置为当与配电系统并联耦合时产生引线电流，并且所述一个或多个级中的至少一个级包括陷波滤波器和功率槽电路。 多个主母线中的每一个被配置为承载多相功率信号的一相。 控制器被配置为确定何时切换一个或多个一个或多个阶段中的每一个，以计数每个阶段被接通的次数，并且跟踪配电系统，功率控制系统的一个或多个电参数， 或两者。

公开(公告)号：US20110216562A1

公开(公告)日：2011-09-08

申请号：US13047754

申请日：2011-03-14

申请人： Gary A. Gengenbach

发明人： Gary A. Gengenbach

IPC分类号： H02M7/68 ,  H02J3/42 ,  H02J3/18

CPC分类号： H02J3/18 ,  H02J3/42 ,  H02M7/68 ,  Y02E10/563 ,  Y02E40/30 ,  Y10T307/735

摘要： This disclosure includes systems and methods for managing the interaction between inverter-based DC and other power systems. In one embodiment, a 3-phase isolation transformer is fluxed to create a 3-phase rotating field from the output of a source inverter. An inductive filter turns that output into three sine waves. A secondary inverter regenerates the system, sometimes after the isolation transformer is fluxed, and by advancing or retarding the secondary inverter's phase, current (and, thus, the DC voltage and power direction) is controlled. In another embodiment, an inverter is supplied by a DC source. The inverter is controlled to match its output voltage, current, and phase to a live AC grid, then the two are connected. The inverter frequency is then driven to advance the phase of the inverter in relation to the grid. Alternatively, the inverter voltage is then driven at a level greater than that of the grid.

摘要翻译： 本公开包括用于管理基于逆变器的DC和其他电力系统之间的相互作用的系统和方法。 在一个实施例中，三相隔离变压器被焊接以从源逆变器的输出产生三相旋转场。 感应滤波器将该输出转换成三个正弦波。 次级逆变器重新生成系统，有时在隔离变压器通电后，通过推进或延迟二次变频器的相位，控制电流（以及因此的直流电压和功率方向）。 在另一个实施例中，逆变器由DC源提供。 控制逆变器将其输出电压，电流和相位与实时交流电网相匹配，然后将两者连接起来。 然后驱动逆变器频率以相对于电网推进逆变器的相位。 或者，逆变器电压然后以大于电网的电平驱动。

公开(公告)号：US20110187105A1

公开(公告)日：2011-08-04

申请号：US12675310

申请日：2010-02-18

申请人： Tohru Minami ,  Mitsuyoshi Fukuda ,  Eiji Irie

发明人： Tohru Minami ,  Mitsuyoshi Fukuda ,  Eiji Irie

IPC分类号： H02P9/04

CPC分类号： H02J3/1821 ,  F03D80/50 ,  F05B2220/70644 ,  H02J3/386 ,  Y02E10/725 ,  Y02E10/763 ,  Y02E40/30

摘要： The present invention provides a maintenance operation method for a wind turbine generator and a wind turbine generator, which can effectively utilize a phase advance capacitor equipped in the wind turbine generator and contribute to the phase factor improvement of the system side. A maintenance operation method for a wind turbine generator including an induction generator 3 driven by rotation of blades 2, a power output line 5 for outputting power of the induction generator 3 to a distribution system 5, and at least one phase advance capacitor 10 parallel-connected to the power output line, comprises: a first step of releasing connection between the phase advanced capacitor 10 and the power output line 5 when a maintenance mode is selected; and a second step of returning the connection between the phase advanced capacitor 10 and the power output line 5 by a manual operation or an automatic operation, wherein the phase advance capacitor 10 returned to the connection with the power output line 5 performs a power factor improvement of reactor loads 53, 54 in the distribution system 50 side through a linkage portion 60 with the distribution system 50.

摘要翻译： 本发明提供了一种用于风力涡轮发电机和风力涡轮发电机的维护操作方法，其可以有效地利用装备在风力涡轮发电机中的相位超前电容器，并且有助于系统侧的相位因数改善。 一种用于风力涡轮发电机的维护操作方法，包括由叶片2的旋转驱动的感应发电机3，用于将感应发电机3的功率输出到分配系统5的电力输出线5和至少一个并联 - 连接到电力输出线，包括：当选择维护模式时，释放相位超前电容器10和电力输出线5之间的连接的第一步骤; 以及通过手动操作或自动操作返回相位超前电容器10和电力输出线5之间的连接的第二步骤，其中返回到与电力输出线5的连接的相位超前电容器10执行功率因数改善 分配系统50侧的反应堆负载53,54通过与分配系统50的连接部分60。

公开(公告)号：US20110169462A1

公开(公告)日：2011-07-14

申请号：US13005789

申请日：2011-01-13

申请人： Björn Andresen ,  Steffen Wulff

发明人： Björn Andresen ,  Steffen Wulff

IPC分类号： G05F5/00

CPC分类号： H02J3/383 ,  H02J3/18 ,  H02J3/386 ,  Y02E10/563 ,  Y02E10/763 ,  Y02E40/30

摘要： A converter device for power conversion in e.g. a power plant such as a wind turbine is disclosed. The converter device is configured for converting an input power to an electrical output power. The converter device may be configured for receiving mechanical input power or, according to another embodiment, may be configured for receiving electrical input power. The converter device includes a controller which is configured for setting a phase angle between a voltage and a total current of the electrical output power to a predetermined value if the voltage indicated by the voltage signal is outside a predetermined voltage band.

摘要翻译： 用于例如电力转换的A转换器装置。 公开了诸如风力涡轮机的发电厂。 转换器装置被配置为将输入功率转换成电输出功率。 转换器装置可以被配置为用于接收机械输入功率，或者根据另一实施例，转换器装置可以被配置为用于接收电输入功率。 转换器装置包括控制器，其被配置为如果由电压信号指示的电压在预定电压带之外，则将电力输出功率的电压与总电流之间的相位角设置为预定值。

公开(公告)号：US20110169461A1

公开(公告)日：2011-07-14

申请号：US12690604

申请日：2010-01-20

申请人： Brian J. Deaver, SR.

发明人： Brian J. Deaver, SR.

IPC分类号： G05F1/70 ,  G06F1/28

CPC分类号： G05F1/70 ,  H02J3/1828 ,  Y02E40/30 ,  Y10T307/391

摘要： A system, method and product for modifying the volt-ampere reactive (VARs) in a power distribution system is provided. In one embodiment, the method includes determining the VARs at a location on the power distribution system and based on the determined VARs, determining whether to modify the VARs. If it is determined to modify the VARs the method includes identifying a plurality a capacitor banks connected to a power line and from the identified plurality of capacitor banks, generating a list of eligible capacitor banks that satisfy inclusion criteria. If the list of eligible capacitor banks includes at least one capacitor bank the method includes selecting a capacitor bank from the list of eligible capacitor banks and transmitting a switching command for the selected capacitor bank. Generating the list of eligible capacitor banks may include one or more of ensuring the voltage at each capacitor bank is not beyond a threshold, ensuring the total harmonic distortion at each capacitor bank is not beyond a threshold, ensuring the capacitor bank has not been switched within a recent predetermined time period, ensuring the capacitor bank has not been switched more than a predetermined number of times within a recent time period, ensuring that communications with each capacitor bank are viable, and other criteria.

摘要翻译： 提供了一种用于修改配电系统中的伏安无功（VAR）的系统，方法和产品。 在一个实施例中，该方法包括确定配电系统上的位置处的VAR并且基于所确定的VAR，确定是否修改VAR。 如果确定修改VAR，则该方法包括识别连接到电力线和所识别的多个电容器组的多个电容器组，产生满足入选标准的符合条件的电容器组的列表。 如果符合条件的电容器组的列表包括至少一个电容器组，则该方法包括从合格的电容器组列表中选择一个电容器组，并传送所选择的电容器组的切换命令。 产生符合条件的电容器组的列表可以包括确保每个电容器组处的电压不超过阈值的一个或多个，以确保每个电容器组的总谐波失真不超过阈值，确保电容器组未被切换 最近的预定时间段，确保电容器组在最近的时间段内没有被切换超过预定次数，确保与每个电容器组的通信是可行的，以及其他标准。

公开(公告)号：US20110130889A1

公开(公告)日：2011-06-02

申请号：US12884822

申请日：2010-09-17

申请人： Sayed Ali KHAJEHODDIN ,  Masoud Karimi GHARTEMANI ,  Praveen JAIN ,  Alireza BAKHSHAI

发明人： Sayed Ali KHAJEHODDIN ,  Masoud Karimi GHARTEMANI ,  Praveen JAIN ,  Alireza BAKHSHAI

IPC分类号： G06F1/26

CPC分类号： H02M1/12 ,  G05F1/67 ,  G05F1/70 ,  H02J3/01 ,  H02J3/18 ,  H02J3/383 ,  H02M1/14 ,  H02M1/36 ,  H02M1/42 ,  H02M7/44 ,  H02M2001/0012 ,  Y02E10/563 ,  Y02E10/58 ,  Y02E10/763 ,  Y02E40/30 ,  Y02E40/40

摘要： Described herein are methods, systems, and apparatus for a controller for a power circuit that interfaces distributed power generation with a power distribution grid, comprising: a first portion, including a maximum power point tracker, that receives signals corresponding to the distributed power generation voltage and current, and outputs to the power circuit a signal for controlling the voltage of the distributed power generation; a second portion, including a current reference generator, a current controller, and a dc voltage controller, that receives signals corresponding to a dc voltage of the power circuit, the power distribution grid voltage and current, and the inverter current, and outputs signals for controlling the power circuit output voltage; wherein the current reference generator includes nonlinear circuit elements and generates a current reference signal from the dc voltage of the power circuit and the grid voltage and current; such that substantially harmonic-free power is injected into the power distribution grid. The distributed power generation may be, for example, a photovoltaic module or a wind turbine.

摘要翻译： 这里描述了用于将分布式发电与配电网接口的电力电路的控制器的方法，系统和装置，包括：第一部分，包括最大功率点跟踪器，其接收对应于分布式发电电压的信号 和电流，并且向电力电路输出用于控制分布式发电的电压的信号; 第二部分，包括电流参考发生器，电流控制器和直流电压控制器，其接收对应于电力电路的直流电压，配电网电压和电流以及逆变器电流的信号，并且输出用于 控制电源电路输出电压; 其中所述电流参考发生器包括非线性电路元件，并从所述电源电路的直流电压和所述电网电压和电流产生电流参考信号; 使得基本上无谐波的功率被注入到配电网中。 分布式发电可以是例如光伏模块或风力涡轮机。

公开(公告)号：US20110121796A1

公开(公告)日：2011-05-26

申请号：US12992934

申请日：2008-05-16

申请人： Albert W. Dunford ,  William G. Dunford ,  Colm E. Gallen ,  Daniel J. Harvey

发明人： Albert W. Dunford ,  William G. Dunford ,  Colm E. Gallen ,  Daniel J. Harvey

IPC分类号： G05F1/14

CPC分类号： H01F29/04 ,  H01F27/02 ,  H01F30/02 ,  H02J3/1878 ,  H02M5/12 ,  H02P13/06 ,  Y02E40/30

摘要： A tap-switching autotransformer for regulating the voltage supplied to a facility includes an electronics sub-assembly for controlling switching of the taps. The electronics sub-assembly and the windings are contained in a housing from which the electronics sub-assembly may be removed for repair or replacement. The electronics sub-assembly is adapted to enable an electronically actuated switch to short-circuit two of the taps. A mechanical switch enables a separate short-circuit to be maintained between the taps to enable the electronics sub-assembly to be safely removed from the housing.

摘要翻译： 用于调节提供给设施的电压的抽头切换自耦变压器包括用于控制抽头的切换的电子部件。 电子组件和绕组被包含在壳体中，电子组件可从该外壳中去除以进行修理或更换。 电子组件适于使电子致动的开关短路两个抽头。 机械开关能够在分接头之间保持单独的短路，以使电子组件能够从壳体中安全地移除。

公开(公告)号：US20110035077A1

公开(公告)日：2011-02-10

申请号：US12656290

申请日：2010-01-25

申请人： Sung-Woo Lee ,  Bok-Nam Ha ,  Chang-Hoon Shin ,  Min-Ho Park ,  So-Young Park

发明人： Sung-Woo Lee ,  Bok-Nam Ha ,  Chang-Hoon Shin ,  Min-Ho Park ,  So-Young Park

IPC分类号： G06F19/00 ,  G05F1/70

CPC分类号： H02J3/1828 ,  H02J3/1878 ,  Y02E40/30

摘要： Provided are a novel distribution automation system and its voltage control method, which can supply a stable voltage to a user by properly adjusting the settings of a control device so as to compensate for reactive power at each load terminal. The voltage control method includes: a first step of modeling a distribution system in the form of a distribution load based on constants of four terminals according to the connection type of each node and a distribution line, which constitute the distribution system; a second step of determining a formula for estimating the magnitude of a voltage at a node from a current value of an adjacent node; a third step of determining an objective function including the magnitude of the voltage, calculated through the formula determined in the second step, and a control variable for controlling the magnitude of the voltage; and a fourth step of calculating a value of the control variable to allow the determined objective function to have a minimum value and applying the calculated value to each voltage control device provided in the distribution system.

摘要翻译： 提供了一种新颖的配电自动化系统及其电压控制方法，其可以通过适当地调整控制装置的设置来向用户提供稳定的电压，以补偿每个负载端子处的无功功率。 电压控制方法包括：第一步骤，根据构成分配系统的每个节点的连接类型和分配线，基于四个终端的常数以分布负载的形式建模分配系统; 确定用于从相邻节点的当前值估计节点处的电压的大小的公式的第二步骤; 确定包括通过在第二步骤中确定的公式计算出的电压大小的目标函数的第三步骤和用于控制电压大小的控制变量; 以及第四步骤，计算控制变量的值以允许所确定的目标函数具有最小值，并将所计算的值应用于分配系统中所提供的每个电压控制装置。

公开(公告)号：US20100332047A1

公开(公告)日：2010-12-30

申请号：US12562491

申请日：2009-09-18

申请人： Shmuel ARDITI ,  Ron HADAR

发明人： Shmuel ARDITI ,  Ron HADAR

IPC分类号： G06F1/28

CPC分类号： H02J3/18 ,  H02J3/383 ,  H02J13/0006 ,  Y02E10/563 ,  Y02E40/30 ,  Y02E40/72 ,  Y04S10/123 ,  Y04S20/36

摘要： A power management system includes a plurality of monitors, communicatively coupled together over a communications medium. Each respective monitor of the plurality of monitors is configured to capture power factor (PF) data at a corresponding distribution segment for calculation of a PF correction.

摘要翻译： 电力管理系统包括通过通信介质通信地耦合在一起的多个监视器。 多个监视器的每个监视器被配置为在对应的分配段捕获功率因数（PF）数据，以计算PF校正。

公开(公告)号：US07859232B2

公开(公告)日：2010-12-28

申请号：US11666675

申请日：2005-10-20

申请人： Bertil Berggren ,  Mojtaba Noroozian

发明人： Bertil Berggren ,  Mojtaba Noroozian

IPC分类号： G05F5/04

CPC分类号： H02J3/1878 ,  H02J3/1807 ,  H02J3/1814 ,  Y02E40/10 ,  Y02E40/18 ,  Y02E40/30

摘要： An apparatus for controlling a power flow in a high voltage network. A phase shifting transformer includes a tap changer.

摘要翻译： 一种用于控制高压网络中的功率流的装置。 相移变压器包括分接开关。