公开(公告)号：US20130119949A1

公开(公告)日：2013-05-16

申请号：US13664737

申请日：2012-10-31

Applicant: PowerMag, LLC

Inventor： Robert V. Albertson

IPC: G05F1/70 ,  H01G9/00 ,  H01P1/212

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：US08373393B2

公开(公告)日：2013-02-12

申请号：US13346552

申请日：2012-01-09

Applicant: John F. Jackman

Inventor： John F. Jackman

IPC: G05F5/00 ,  G05F1/70 ,  G05F3/00

CPC classification number: G05F1/70 ,  H02J3/1828 ,  Y02E40/30

Abstract: 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.

公开(公告)号：US20120147507A1

公开(公告)日：2012-06-14

申请号：US12962803

申请日：2010-12-08

Applicant: Cecil Rivers, JR. ,  Thomas Frederick Papallo, JR.

Inventor： Cecil Rivers, JR. ,  Thomas Frederick Papallo, JR.

IPC: H02H9/08

CPC classification number: H02J3/1828 ,  H02H3/16 ,  H02H3/337 ,  H02J3/1892 ,  Y02E40/30

Abstract: A leakage current masking device for use with a circuit includes at least one inductive load device coupled to the circuit and configured to supply an inductive load to the circuit, and a processor communicatively coupled to the inductive load device. The processor is configured to receive a signal representative of a current through the circuit, calculate a capacitive leakage current component of the current, and cause the inductive load device to adjust the inductive load supplied to the circuit to reduce the capacitive leakage current component.

Abstract translation: 用于电路的泄漏电流屏蔽装置包括耦合到电路并且被配置为向电路提供感性负载的至少一个感性负载装置，以及通信地耦合到感性负载装置的处理器。 处理器被配置为接收表示通过电路的电流的信号，计算电流的电容性漏电流分量，并且使感性负载装置调节提供给电路的电感负载以减小电容性漏电流分量。

公开(公告)号：US20120139506A1

公开(公告)日：2012-06-07

申请号：US13167926

申请日：2011-06-24

Applicant: Akihiro MATSUDA ,  Yoshiyuki KONO ,  Masatoshi TAKEDA

Inventor： Akihiro MATSUDA ,  Yoshiyuki KONO ,  Masatoshi TAKEDA

IPC: G05F5/00

CPC classification number: H02J3/1828 ,  H02J3/1878 ,  Y02E40/12 ,  Y10T307/669

Abstract: A first SVC is connected to a first bus. A first SVC control unit controls the first SVC. A first fluctuation-component-voltage generating unit includes a voltage reference circuit that outputs a voltage reference value. A second SVC is connected to a second bus. A second SVC control unit controls the second SVC. A second fluctuation-component-voltage generating unit includes a first-order-lag control block with limiter that generates a comparative voltage that follows a bus voltage of the second bus with a predetermined time lag characteristic and is limited within a predetermined range. An impedance value XS1 of slope reactance of the first SVC is set smaller than impedance value XS2 of slope reactance of the second SVC.

Abstract translation: 第一个SVC连接到第一个总线。 第一SVC控制单元控制第一SVC。 第一波动分量电压产生单元包括输出电压基准值的电压基准电路。 第二SVC连接到第二总线。 第二SVC控制单元控制第二SVC。 第二波动分量电压产生单元包括具有限制器的一阶滞后控制块，其产生具有预定时间滞后特性并遵循第二总线的总线电压的比较电压并被限制在预定范围内。 将第一SVC的斜率电抗的阻抗值XS1设定为小于第二SVC的斜率电抗的阻抗值XS2。

公开(公告)号：US20100237835A1

公开(公告)日：2010-09-23

申请号：US12724610

申请日：2010-03-16

Applicant: Masatoshi TAKEDA ,  Shinichi Ogusa

Inventor： Masatoshi TAKEDA ,  Shinichi Ogusa

IPC: G05F1/70

CPC classification number: G05F1/70 ,  H02J3/1828 ,  Y02E40/30

Abstract: A capacitor bank unit includes three capacitor banks that have respective capacitances that are multiples of a basic capacitance in accordance with a number sequence of the n-th power of 2. One of the capacitor banks has the basic capacitance, remaining two of the capacitor banks includes two subbanks each. The capacitance of a subbank is set to a capacitance that is a multiple of the basic capacitance in accordance with a number sequence of the m-th power of 2. When any one of the capacitor banks fails, each of capacitor banks following the failed capacitor bank substitutes for a capacitor bank located immediately before itself.

Abstract translation: 电容器组单元包括三个电容器组，其具有根据2的n次方的数量级的基本电容的倍数的相应电容。电容器组之一具有基本电容，剩余两个电容器组 包括两个子银行。 子库的电容被设定为基于第二次幂的次数的基本电容的倍数的电容。当任何一个电容器组发生故障时，每个电容器组跟随故障电容器 银行替代位于自身之前的电容器组。

公开(公告)号：US07095597B1

公开(公告)日：2006-08-22

申请号：US10426287

申请日：2003-04-30

Applicant: Kevin L. Cousineau

Inventor： Kevin L. Cousineau

IPC: H02H7/06

CPC classification number: H02J3/1828 ,  H02J3/382 ,  H02J3/386 ,  Y02E10/763 ,  Y02E40/12

Abstract: A power generating system wherein a variable speed turbine is mounted on top of a tower or tethered underwater. The reactive component of turbine generated electrical power is corrected automatically through electronic switched power-factor capacitor banks that are divided into sub-system modules coupled to a central turbine park sub-station. The sub-system modules are of a fixed size and are easily adaptable to different turbine generator types, sizes and groupings. By employing SCR switched power factor capacitors grouped in sub-system modules of fixed size, coupled to a central turbine park sub-station, the converter allows fast, real time control of the utility interconnected power line voltage or power factor.

Abstract translation: 一种发电系统，其中变速涡轮机安装在塔顶或水下系绳上。 通过电子开关功率因数电容器组自动校正涡轮发电功率的无功分量，这些电容器组分为耦合到中央涡轮机停放子站的子系统模块。 子系统模块具有固定尺寸，并且易于适应不同的涡轮发电机类型，尺寸和分组。 通过使用固定尺寸的子系统模块组合的SCR开关功率因数电容器，耦合到中央涡轮机停放站，转换器允许对公用事业互连的电力线电压或功率因数进行快速，实时的控制。

公开(公告)号：US06900619B2

公开(公告)日：2005-05-31

申请号：US09449378

申请日：1999-11-24

Applicant: Arnold P. Kehrli ,  John A. Diaz De Leon, II ,  Douglas C. Folts

Inventor： Arnold P. Kehrli ,  John A. Diaz De Leon, II ,  Douglas C. Folts

IPC: H02J3/18 ,  G05F1/70

CPC classification number: H02J3/1828 ,  Y02E40/30

Abstract: The invention features a system and approach for minimizing the step voltage change as seen by the utility customer as well minimizing transients imposed on the fundamental waveform of a normal voltage carried on a utility power network when a reactive power source (e.g., capacitor bank) is instantaneously connected to the utility power. The reactive power source is adapted to transfer reactive power of a first polarity (e.g., capacitive reactive power) to the utility power network. The system includes a reactive power compensation device configured to transfer a variable quantity of reactive power of a second, opposite polarity to the utility power network, and a controller which, in response to the need to connect the shunt reactive power source to the utility power network, activates the reactive power compensation device and, substantially simultaneously, causes the shunt reactive power source to be connected to the utility power.

Abstract translation: 本发明的特征在于一种系统和方法，用于使公用事业客户所看到的阶跃电压变化最小化，并且当无功电源（例如，电容器组）为...时，最小化施加在公用电力网络上承载的正常电压的基波形的瞬变 瞬间连接到公用电源。 无功功率源适于将第一极性（例如，电容性无功功率）的无功功率传送到公用电力网络。 该系统包括无功功率补偿装置，其被配置为向公用电力网络传送可变量的具有第二相反极性的无功功率;以及控制器，其响应于将分流无功功率源连接到公用电力的需要 网络，激活无功功率补偿装置，并且基本上同时地使分流无功电源连接到公用电力。

公开(公告)号：US06867570B2

公开(公告)日：2005-03-15

申请号：US10362379

申请日：2001-08-17

Applicant: John J. Vithayathil ,  Kadry Sadek

Inventor： John J. Vithayathil ,  Kadry Sadek

IPC: H02J3/18 ,  G05F1/70

CPC classification number: H02J3/1828 ,  H02J3/1864 ,  Y02E40/12 ,  Y02E40/30

Abstract: The novel circuit arrangement is used for the static generation of a variable electric output, as is common in static reactive-power compensation systems. According to the invention, a voltage is applied to a consumer, i.e. to a capacitor and/or an inductor, and a transformer (T) has at least two power-control windings (W1, W2) in a secondary circuit, said windings being connected electrically in series via bridge circuits (B1, B2). In their branches, the bridge circuits contain static switches (BSS1 . . . 4) in an inverse-parallel connection, said switches can be selectively connected or disconnected.

Abstract translation: 新颖的电路装置用于静态产生可变电力输出，如在静态无功功率补偿系统中所常见的。 根据本发明，向消费者（即，电容器和/或电感器）施加电压，并且变压器（T）在次级电路中具有至少两个功率控制绕组（W1，W2），所述绕组为 通过桥接电路（B1，B2）串联电连接。 在它们的分支中，桥接电路包含逆并联连接的静态开关（BSS1.4），所述开关可以选择性地连接或断开。

公开(公告)号：US20040164718A1

公开(公告)日：2004-08-26

申请号：US10789253

申请日：2004-02-27

Inventor： William D. McDaniel ,  Gail A. McDaniel ,  Timothy J. McDaniel

IPC: G05F001/70

CPC classification number: G05F1/70 ,  H02J3/1828 ,  H02J3/1871 ,  Y02E40/30

Abstract: An automatic power factor correction system, for an electrical power installation drawing varying levels of reactive power, measures an electrical parameter of the power drawn by a load of a power installation using a power measurement integrated circuit, the parameter being capable of indicating a level of reactive power drawn by the load, and couples a combination of capacitors to the power line to compensate for the level of reactive power indicated by the electrical parameter measured. In a first embodiment of the invention, the combination of power factor compensating capacitors is calculated from a signed value of reactive power drawn by the load. In a second embodiment, the compensating capacitor combination is calculated from a value of power factor for the load which is calculated from a ratio of an active power value to an apparent power value.

Abstract translation: 一种自动功率因数校正系统，用于绘制不同级别的无功功率的电力设备，测量由功率测量集成电路的电力设备的负载所牵引的功率的电参数，该参数能够指示 由负载引起的无功功率，并将电容器的组合耦合到电力线，以补偿由所测量的电参数指示的无功功率电平。 在本发明的第一实施例中，功率因数补偿电容器的组合由负载所绘制的无功功率的有符号值计算。 在第二实施例中，补偿电容器组合是根据从有效功率值与视在功率值的比值计算的负载的功率因数的值来计算的。

公开(公告)号：US06775117B2

公开(公告)日：2004-08-10

申请号：US09752028

申请日：2000-12-29

Applicant: Rudy Christian Thomas Wodrich ,  Tommy Szechin Mok

Inventor： Rudy Christian Thomas Wodrich ,  Tommy Szechin Mok

IPC: H02H900

CPC classification number: H02H9/005 ,  H02J3/1828 ,  Y02E40/30

Abstract: The present invention provides diode bridge and a parallel type, capacitor based, phase to phase surge suppressor. The suppressor acts to suppress transient energy as soon as the spike exceeds the prevailing peak of the ac waveform. The system dissipates the spike by drawing current through the system impedance between the suppressor sand the source of the surge.

Abstract translation: 本发明提供了二极管桥和基于并联型电容器的相间浪涌抑制器。 一旦尖峰超过交流波形的主峰，抑制器就起到抑制瞬态能量的作用。 该系统通过吸收电流来消除尖峰，该电流通过抑制器对浪涌源产生的系统阻抗。