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公开(公告)号：EP2596564B1
公开(公告)日：2014-03-19
申请号：EP11729385.2
申请日：2011-05-26
申请人： ABB Technology AG
发明人： GAJIC, Zoran
CPC分类号： H02H7/16 , H02J3/1828 , Y02E40/30
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公开(公告)号：EP2605357A1
公开(公告)日：2013-06-19
申请号：EP11193820.5
申请日：2011-12-15
CPC分类号： H02J3/16 , H02J3/1828 , H02J3/1842 , H02J3/386 , Y02E10/763 , Y02E40/22 , Y02E40/34
摘要： A method of controlling the dynamic power factor or the re-active power output of a wind park to a utility grid which is to be driven with a requested power factor, a requested voltage or a requested reactive power is provided. The wind park comprises reactor means (83) for providing a selectable shunt capacitance in accordance with a capacitor selection signal and is executed by a wind park controller (43). The method includes:
a) determining a set point for the wind turbines (1, 3) for setting a reactive power output of the wind turbines (1, 3);
b) transmitting the set point to the wind turbines (1, 3);
c) comparing the determined set point to a first threshold set point; and
d) adjusting the capacitor selection signal in accordance with a result of the comparison.摘要翻译： 提供一种将风力发电场的动态功率因数或有功功率输出控制在要求功率因数，要求电压或要求无功功率的公用电网上的方法。 风力发电场包括用于根据电容器选择信号提供可选择的并联电容并由风电场控制器（43）执行的电抗器装置（83）。 该方法包括：a）确定用于设置风力涡轮机（1,3）的无功功率输出的风力涡轮机（1,3）的设定点; b）将设定点传送到风力涡轮机（1,3）; c）将确定的设定点与第一阈值设定点进行比较; 以及d）根据比较结果调整电容器选择信号。
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73.发明公开System and method for controlling voltage on a distribution feeder 有权系统和Verfahren zur Steuerung der Spannung在einem Leistungsspeiseelement
公开(公告)号：EP2549615A2
公开(公告)日：2013-01-23
申请号：EP12176589.5
申请日：2012-07-16
IPC分类号： H02J3/18
CPC分类号： H02J3/1828 , H02J3/16 , Y02E40/34
摘要： A system (100) for controlling voltage on a distribution feeder (106) includes a plurality of capacitor banks (102a-102n) that can be connected to or disconnected from the distribution feeder. A first bank is configured to connect to the distribution feeder when a first voltage is below a first lower threshold value and to connect to the distribution feeder when the first voltage is above a first upper threshold value. The first upper threshold and first lower threshold are determined based off an operational set point. The system further includes a sensor (109) configured to measure the first voltage and a controller (108) in operable communication with the plurality of capacitor banks configured to determine the operational state of the first and second capacitor banks and, based on the first voltage, send a first instruction to the first capacitor bank, the first instruction causing the capacitor bank to vary the operational set point.
摘要翻译： 用于控制分配馈送器（106）上的电压的系统（100）包括可以与分配馈线连接或断开的多个电容器组（102a-102n）。 第一组配置成当第一电压低于第一下限阈值时连接到分配馈线，并且当第一电压高于第一上限阈值时连接到分配馈线。 基于操作设定点确定第一上限阈值和第一下限阈值。 该系统还包括被配置为测量第一电压的传感器（109）和与多个电容器组可操作地通信的控制器（108），其被配置为确定第一和第二电容器组的操作状态，并且基于第一电压 向第一电容器组发送第一指令，使得电容器组的第一指令改变操作设定点。
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公开(公告)号：EP1829183A1
公开(公告)日：2007-09-05
申请号：EP04809178.9
申请日：2004-12-22
申请人： ABB Technology Ltd
CPC分类号： H02J3/1814 , H02J3/1828 , Y02E40/18 , Y02E40/30
摘要： An apparatus for reactive power compensation in an ac medium voltage power network comprises a common connection (1), a first branch (2) containing a first switch (4) and a first capacitor (5), and a second branch (3), containing a second switch (6), and a second capacitor (7).
摘要翻译： 一种交流中压电力网无功补偿装置。 该装置包括一个公共连接; 第一分支，包括第一开关和第一电容器; 以及包括第二开关和第二电容器的第二分支。
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公开(公告)号：EP1395889A4
公开(公告)日：2007-06-06
申请号：EP02739623
申请日：2002-06-04
CPC分类号： H02J3/1828 , G05F1/70 , H02J3/1871 , Y02E40/30
摘要： An automatic power factor correction system (1), for an electrical power installation (3) drawing varying levels of reactive power, measures an electrical parameter of the power drawn by a load (5) of the power installation (3) which is capable of indicating a level of reactive power drawn by the load (5) and couples a combination of capacitors (32) to the power line (4) to compensate for the level of reactive power indicated by the electrical parameter measured. In particular, the system (1) measures the phase angle of the power drawn and calculates a combination of capacitors (32) to connect to the power line (4) to compensate for a measured level of reactive powre.
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76.发明公开
公开(公告)号：EP0879497A1
公开(公告)日：1998-11-25
申请号：EP96905328.0
申请日：1996-01-29
IPC分类号： H02J3
CPC分类号： H02J3/1807 , H02J3/1828 , H02J3/24 , Y02E40/30
摘要： A dynamic mechanically-switched damping (DMSD) system is described which utilizes one or more mechanical switches and appropriate controls to switch series or shunt reactive impedances (14) in order to provide power oscillation damping in power systems. The DMSD system provides a controller (16) which can be configured based on the number of mechanical switches in the DMSD system, the type of reactive impedances interfaced to the power system by each switch and the magnitude of each of the reactive impedance. The DMSD system monitors parameters of the power system (17, 18) and the controller generates a modulation signal based on the monitored parameters. The modulation signal is processed to identify a reactive impedance of the available DMSD system reactive impedances required to damp power oscillations. Appropriate switches (32) are selected for supplying the required reactive impedance. A switching control signal is generated and output to each of the selected switches to synchronously open or close the switch at a predetermined instant.
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公开(公告)号：EP0800717A1
公开(公告)日：1997-10-15
申请号：EP96933092.0
申请日：1996-09-20
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 φo. The second control unit (108) compares the requested angular velocity signal φo to a measured angular velocity signal φr of the rotary transformer to generate a converter drive signal (To) to a torque control unit (106), thereby controlling the angular positioning (υr) 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).
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78.发明公开Interconnection system for transmitting power between electrical systems 失效Verbindungssystem zurLeistungsübertragungzwischen elektrischen Systemen
公开(公告)号：EP0740387A2
公开(公告)日：1996-10-30
申请号：EP96302752.9
申请日：1996-04-19
IPC分类号： H02J3/34
CPC分类号： H02K47/22 , H01F38/18 , H02J3/06 , H02J3/1828 , H02J3/34 , H02P9/48 , H02P2101/10 , 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 measured power (P 1 ) transferred from a first electrical system (22) to a second electrical system (24) matches an inputted order power (P o ). 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 P o to the measured power P 1 to generate a requested angular velocity signal ω o . The second control unit (108) compares the requested angular velocity signal ω o to a measured angular velocity signal ω r of the rotary transformer to generate a converter drive signal T o to a torque control unit (106), thereby controlling the angular positioning (θ 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).
摘要翻译： 电互连系统（100）包括变频旋转变压器（102）和控制系统（104）。 控制系统（104）调节旋转变压器（102）的角度位置，使得从第一电气系统（22）传递到第二电气系统（24）的测量功率（P1）与输入的订单功率（Po）匹配。 旋转变压器（102）包括转子组件（110）和定子（112），控制系统（104）随时间调整转子速度的时间积分。 控制系统（104）包括第一控制单元（107）和第二控制单元（108）。 第一控制单元（107）将输入的单位功率Po与测量的功率P1进行比较，以生成请求的角速度信号ωo。 第二控制单元（108）将所请求的角速度信号ωo与旋转变压器的测量角速度信号ωr进行比较，以将变换器驱动信号To产生到转矩控制单元（106），由此控制角度定位 转子组件（110）相对于定子（112）的转子（r）。 在各种实施例中，扭矩控制单元（106）集成在旋转变压器（102）的转子组件（110）和定子（112）中。
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公开(公告)号：EP0446451A3
公开(公告)日：1992-09-16
申请号：EP90124257.8
申请日：1990-12-14
发明人： Huber, Robert , Hauke, Otmar
CPC分类号： H02J3/1828 , Y02E40/30
摘要： Es wird ein Verfahren zum Betrieb eines Blindleistungsreglers beschrieben, bei dem zum Zwecke der Ermöglichung eines beliebigen Anschlusses von Stromwandler und der Meßspannung - bei Hochspannung ist über einen Spannungswandler anzuschließen - eine automatische Initialisierung der Wandlereinbaulage und des Meßspannungsanschlusses erfolgt und entsprechende Korrekturfaktoren gebildet werden. Außerdem wird die Bestimmung der C/k-Werte automatisch vorgenommen und eine Gesamtkompensation der jeweiligen Regeldifferenz durchgeführt.
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公开(公告)号：EP0168147A1
公开(公告)日：1986-01-15
申请号：EP85303678.8
申请日：1985-05-24
IPC分类号： H02J3/18
CPC分类号： H02J3/1828 , Y02E40/30
摘要： THE INVENTION provides a method of regulating the power factor in an electrical network whereby a plurality of reactive components are provided and adapted to be switched into the network selectively. The method includes the steps of measuring the power factor in the network, determining the corrective reactance required to obtain a predetermined overall corrected power factor, and then switching in the reactive components which approximate the required reactance, into the network.
摘要翻译： 本发明提供一种调节电网中的功率因数的方法，由此提供多个无功分量并适于选择性地切换到网络中。 该方法包括以下步骤：测量网络中的功率因数，确定获得预定总校正功率因数所需的校正电抗，然后将接近所需电抗的无功分量切换到网络中。
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