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    SYSTEMS AND METHODS FOR EDGE OF NETWORK VOLTAGE CONTROL OF A POWER GRID
    1.
    发明授权
    SYSTEMS AND METHODS FOR EDGE OF NETWORK VOLTAGE CONTROL OF A POWER GRID 有权

    公开(公告)号：EP2756365B1

    公开(公告)日：2018-09-05

    申请号：EP12831757.5

    申请日：2012-09-14

    申请人： Varentec, Inc.

    发明人： DIVAN, Deepakraj ,  DILLON, Andrew

    IPC分类号： G05F5/00

    CPC分类号： H02J3/16 ,  G05B13/02 ,  G05B15/02 ,  H02J3/1828 ,  Y02E40/34 ,  Y04S10/22

    摘要： 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.

    ALGORITHM FOR PASSIVE POWER FACTOR COMPENSATION METHOD WITH DIFFERENTIAL CAPACITOR CHANGE AND REDUCED LINE TRANSIENT NOISE
    2.
    发明公开
    ALGORITHM FOR PASSIVE POWER FACTOR COMPENSATION METHOD WITH DIFFERENTIAL CAPACITOR CHANGE AND REDUCED LINE TRANSIENT NOISE 有权
    一种用于差分电容变化和减少线路传输冲量的无源功率因数补偿方法

    公开(公告)号：EP2979344A4

    公开(公告)日：2016-12-07

    申请号：EP14780066

    申请日：2014-03-31

    申请人： EDGE ELECTRONS LTD

    发明人： STEWART NEAL GEORGE

    IPC分类号： H02J3/18 ,  G01R21/00 ,  G01R21/06

    CPC分类号： H02M1/4266 ,  G01R21/003 ,  G01R21/006 ,  G01R21/06 ,  G01R23/02 ,  H02J3/1828 ,  Y02E40/30

    摘要： A computer-implementable control algorithm that measures: 1) the reactive power; 2) the power factor; 3) the voltage; and 4) the line frequency. The algorithm calculates the differential compensation capacitance required that is either positive (capacitance to be added), or negative (capacitance to be removed). The new compensation capacitance is calculated from the sum or difference of the differential compensation capacitance and the current compensation capacitance. The algorithm compares the capacitor switching bit pattern for the current compensation capacitance and the capacitor switching bit pattern for the new compensation capacitance, and selects a capacitor switching bit map accordingly. The capacitor switch combination for the new compensation capacitance is switched in incrementally according to the capacitor switching bit map. To reach the selected capacitor switch combination, only one switch is switched at a time to minimize the line transient noise. This part of the algorithm continues to run until the PF is corrected, with the capacitor switches being switched on/off each delayed by a millisecond interval to minimize line transient noise.

    POWER CONDITIONING AND SAVING DEVICE
    6.
    发明公开
    POWER CONDITIONING AND SAVING DEVICE 审中-公开
    ENERGIEAUFBEREITUNGS-和储存的装置

    公开(公告)号：EP2776855A1

    公开(公告)日：2014-09-17

    申请号：EP12846717.2

    申请日：2012-10-31

    申请人： Powermag, LLC

    发明人： ALBERTSON, Robert, V.

    IPC分类号： G01R21/00

    CPC分类号： H02J3/1828 ,  G05F1/70 ,  H01G9/00 ,  H01P1/212 ,  H02J3/01 ,  H02J3/1835

    摘要： Systems and methods are disclosed herein to a power factor adjuster 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.

    SYSTEMS AND METHODS FOR EDGE OF NETWORK VOLTAGE CONTROL OF A POWER GRID
    7.
    发明公开
    SYSTEMS AND METHODS FOR EDGE OF NETWORK VOLTAGE CONTROL OF A POWER GRID 审中-公开
    系统和电网的网络边界张力控制方法

    公开(公告)号：EP2756365A1

    公开(公告)日：2014-07-23

    申请号：EP12831757.5

    申请日：2012-09-14

    申请人： Varentec, Inc.

    发明人： DIVAN, Deepakraj ,  DILLON, Andrew

    IPC分类号： G05F5/00

    CPC分类号： H02J3/16 ,  G05B13/02 ,  G05B15/02 ,  H02J3/1828 ,  Y02E40/34 ,  Y04S10/22

    摘要： 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.

    An arrangement and method for load compensation
    8.
    发明公开
    An arrangement and method for load compensation 有权
    Anordnung und Verfahren zum Lastausgleich

    公开(公告)号：EP2747233A1

    公开(公告)日：2014-06-25

    申请号：EP12199027.9

    申请日：2012-12-21

    申请人： ALSTOM Grid Oy

    发明人： Aho, Jarmo

    IPC分类号： H02J3/18 ,  H02M1/12

    CPC分类号： H05B7/148 ,  H02J3/00 ,  H02J3/1821 ,  H02J3/1828 ,  H02J3/1864 ,  Y02E10/46 ,  Y02E40/30 ,  Y10T307/406

    摘要： An arrangement and method for load compensation in an electrical power network. The arrangement comprises at least one voltage stabilization apparatus (7) and at least one load line (LL) comprising at least one load compensation apparatus (10), at least one load (12) and at least one separation reactor (8). In the arrangement the separation reactor (8) is to be connected in series with the load compensation apparatus (10) and the load line (LL) is to be connected in parallel with the voltage stabilization apparatus (7).

    摘要翻译： 一种用于电力网络负载补偿的装置和方法。 该装置包括至少一个电压稳定装置（7）和至少一个装载线（LL），其包括至少一个负载补偿装置（10），至少一个负载（12）和至少一个分离反应器（8）。 在该布置中，分离反应器（8）将与负载补偿装置（10）串联连接，并且负载线路（LL）将与稳压装置（7）并联连接。

    METHOD AND CONTROL ARRANGEMENT FOR CONTROLLING CENTRAL CAPACITORS IN WIND POWER PLANTS
    9.
    发明公开
    METHOD AND CONTROL ARRANGEMENT FOR CONTROLLING CENTRAL CAPACITORS IN WIND POWER PLANTS 审中-公开
    VERFAHREN UND STEUERANORDNUNG ZUR STEUERUNG DER ZENTRALEN KONDENSATOREN BEI WINDENERGIEANLAGEN

    公开(公告)号：EP2577831A2

    公开(公告)日：2013-04-10

    申请号：EP11729890.1

    申请日：2011-05-31

    申请人： Vestas Wind Systems A/S

    发明人： GARCIA, Jorge, Martinez

    IPC分类号： H02J3/18 ,  F03D7/00 ,  F03D9/00 ,  H02P9/00 ,  H02J3/38

    CPC分类号： H02P9/00 ,  H02J3/1828 ,  H02J3/1842 ,  H02J3/386 ,  H02P9/007 ,  H02P2101/15 ,  Y02E10/763 ,  Y02E40/22 ,  Y02E40/30

    摘要： The present invention relates to a control system and an associated method for controlling an amount of reactive power delivered from a wind power plant to an associated power supply grid, the control system comprising a wind power plant controller and a number of wind turbine controllers each being in communication with said wind power plant controller, wherein the wind power plant controller is adapted to provide a grid voltage reference in response to a required total amount of reactive power to at least one wind turbine controller and operating a Switched Capacitor bank.

    摘要翻译： 本发明涉及一种控制系统和相关方法，用于控制从风力发电厂输送到相关电力电网的无功功率量，所述控制系统包括风力发电厂控制器和多个风力涡轮机控制器，每个风力发电机组 与所述风力发电设备控制器通信，其中所述风力发电设备控制器适于响应于至少一个风力涡轮机控制器的所需无功功率总量而提供电网电压基准并且操作开关电容器组。

    INTERCONNECTION SYSTEM FOR TRANSMITTING POWER BETWEEN ELECTRICAL SYSTEMS
    10.
    发明公开
    INTERCONNECTION SYSTEM FOR TRANSMITTING POWER BETWEEN ELECTRICAL SYSTEMS 失效
    连接系统电力传递电气系统之间

    公开(公告)号：EP0800717A4

    公开(公告)日：2007-01-03

    申请号：EP96933092

    申请日：1996-09-20

    申请人： GEN ELECTRIC

    发明人： RUNKLE MARK ANDREW ,  LARSEN EINAR VAUGHN

    IPC分类号： H01F38/18 ,  H02J3/18 ,  H02J3/34 ,  H02K47/22 ,  H02K47/26 ,  H02P9/48 ,  H02M5/06 ,  H02J9/08 ,  H02K19/10 ,  H02M5/16 ,  H02M5/32 ,  H02M7/00 ,  H02P5/40

    CPC分类号： H02J3/34 ,  H01F38/18 ,  H02J3/1828 ,  H02K47/22 ,  H02K47/26 ,  H02P9/48 ,  Y02E40/30

    摘要： An electrical interconnection system (100) comprises a variable frequency rotary transformer (102) and a control system (104). The control system (104) adjusts an angular position of the rotary transformer (102) so that mesured power (P1) transferred from a first electrical system (22) to a second electrical system (24) matches an inputted order power (Po). The rotary transformer (102) comprises a rotor assembly (110) and a stator (112), with the control system (104) adjusting a time integral of rotor speed over time. The control system (104) includes a first control unit (107) and a second control unit (108). The first control unit (107) compares the input order power (Po) to the measured power (P1) to generate a requested angular velocity signal omega o. The second control unit (108) compares the requested angular velocity signal omega o to a measured angular velocity signal omega r of the rotary transformer to generate a converter drive signal (To) to a torque control unit (106), thereby controlling the angular positioning ( theta r) of the rotor assembly (110) relative to the stator (112). In various embodiments, the torque control unit (106) is integrated in the rotor assembly (110) and stator (112) of the rotary transformer (102).