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212 条记录 (耗时 0.015 秒)

    VERFAHREN ZUM BETREIBEN EINER WINDENERGIEANLAGE
    112.
    发明公开
    VERFAHREN ZUM BETREIBEN EINER WINDENERGIEANLAGE 无效
    风力发电设备及其操作方法风力发电厂

    公开(公告)号：EP1386078A1

    公开(公告)日：2004-02-04

    申请号：EP02740489.6

    申请日：2002-04-22

    申请人： Wobben, Aloys

    发明人： Wobben, Aloys

    IPC分类号： F03D9/00 ,  H02J3/38

    CPC分类号： F03D9/255 ,  F03D9/257 ,  F05B2270/337 ,  H02J3/16 ,  H02J3/38 ,  H02J3/386 ,  H02J3/42 ,  H02K11/225 ,  Y02E10/72 ,  Y02E10/763 ,  Y02E40/34 ,  Y02E60/721 ,  Y04S10/126

    摘要： The present invention relates to a method for operating a wind turbine with an electrical generator, drivable by a rotor, for supplying electrical power to an electric grid, in particular to the loads connected thereto. The object of the present invention is to define a method for operating a wind turbine and to provide a wind turbine and/or a wind farm that is capable, even when the output of non-reactive power fluctuates, of reducing or at least of insignificantly increasing the unwanted fluctuation in voltage at a predefined point in the grid compared to the situation with no wind turbine(s). Method for operating a wind turbine with an electrical generator, drivable by a rotor, for supplying electrical power to an electric grid, in particular to the loads connected thereto, characterized in that the phase angle phi is changed in response to at least one voltage measured in the grid. A method for operating a wind turbine and to provide a wind turbine and/or a wind farm that is capable, even when the output of non-reactive power fluctuates, of reducing or at least of insignificantly increasing the unwanted fluctuation in voltage at a predefined point in the grid compared to the situation with no wind turbines. Method for operating a wind turbine with an electrical generator, drivable by a rotor, for supplying electrical power to an electric grid, in particular to the loads connected thereto, characterized in that the phase angle phi is changed in response to at least one voltage measured in the grid.

    Supervising system and operating method for areal power information
    113.
    发明公开
    Supervising system and operating method for areal power information 审中-公开
    Überwachungssystemund BetriebsverfahrenfürFlächenleistungsbenachrichtigung

    公开(公告)号：EP1367689A2

    公开(公告)日：2003-12-03

    申请号：EP03010618.1

    申请日：2003-05-12

    申请人： Hitachi, Ltd.

    发明人： Ono, Yasunori ,  Uchiyama, Noriyuki ,  Kondo, Shinichi ,  Fujita, Yasunobu ,  Kawamura, Naoki

    IPC分类号： H02J13/00

    CPC分类号： H02J13/0086 ,  H02J3/008 ,  H02J3/06 ,  H02J3/16 ,  H02J3/38 ,  H02J13/0006 ,  H02J2003/007 ,  Y02E40/34 ,  Y02E40/72 ,  Y02E60/726 ,  Y04S10/12 ,  Y04S10/24 ,  Y04S50/10

    摘要： The areal power information center (5) collects, via the communications line (20), the system information on the power flow and the voltage in the areal power transmission/distribution system (10). Also, the center (5) collects the customer information on the consumed-power amounts by the respective customers (3a, 3b, 4), and on the generated-electricity amounts by the customers (3b). Moreover, the center (5) collects the wheeling information on a wheeling request for requesting a power transmission from one customer (3b) to another customer (3b). Furthermore, based on the respective information collected, the center (5) controls the reactive power from the areal-power-transmission/distribution-system voltage regulator (17), and the output-power from the electric generators (40). This control allows the center (5) to suppress a congestion of the power flow in the areal power transmission/distribution system (10).

    摘要翻译： 区域电力信息中心（5）经由通信线（20）收集关于功率流和系统功率传输/分配系统（10）中的电压的系统信息。 此外，中心（5）收集客户（3a，3b，4）的消耗功率量的客户信息和客户（3b）的生成电量。 此外，中心（5）收集关于从一个客户（3b）向另一客户（3b）请求电力传输的轮询请求的轮式信息。 此外，基于收集的各个信息，中心（5）控制来自区域 - 输电/配电系统电压调节器（17）的无功功率和来自发电机（40）的输出功率。 该控制允许中心（5）抑制区域电力传输/分配系统（10）中的电力流量的拥塞。

    SYSTEMS AND METHODS FOR SWITCH-CONTROLLED VAR SOURCES COUPLED TO A POWER GRID
    114.
    发明授权
    SYSTEMS AND METHODS FOR SWITCH-CONTROLLED VAR SOURCES COUPLED TO A POWER GRID 有权

    公开(公告)号：EP2788832B1

    公开(公告)日：2018-09-05

    申请号：EP12855569.5

    申请日：2012-12-06

    申请人： Varentec, Inc.

    发明人： DIVAN, Deepakraj, M. ,  CHEN, Hao ,  PRASAI, Anish

    IPC分类号： G05F5/00 ,  H02J3/16 ,  H02J3/18

    CPC分类号： H02J3/16 ,  H02J3/1835 ,  Y02E40/34

    摘要： Systems and methods for harmonic resonance control are described. In some embodiments, a system comprises a first switch-controlled VAR source and a harmonic management block which may each be configured to be coupled to a distribution power network. The first switch-controlled VAR source may comprise a first processor, a voltage compensation component, and a switch. The first processor may be configured to enable the voltage compensation component after a delay by controlling the switch based on first proximate voltage after a duration associated with the delay to adjust voltage volt-ampere reactive. The harmonic management block may be configured to compare a second proximate voltage to at least one resonant threshold to detect potential resonance caused by enablement of the voltage compensation component and to engage based on the comparison the resonance compensation component to manage the potential resonance.

    SYSTEMS AND METHODS FOR EDGE OF NETWORK VOLTAGE CONTROL OF A POWER GRID
    115.
    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.

    VOLTAGE CONTROL AT WINDFARMS
    116.
    发明公开
    VOLTAGE CONTROL AT WINDFARMS 审中-公开
    WINDFARMS的电压控制

    公开(公告)号：EP3316433A1

    公开(公告)日：2018-05-02

    申请号：EP17201700.6

    申请日：2009-10-02

    申请人： General Electric Company

    发明人： LARSEN, Einar Vaughn ,  WALLING, Reigh Allen ,  CLARK, Kara

    IPC分类号： H02J3/16 ,  H02J3/38 ,  F03D9/25

    CPC分类号： H02J3/386 ,  F03D9/255 ,  F03D9/257 ,  H02J3/16 ,  H02J2003/007 ,  Y02E10/725 ,  Y02E10/763 ,  Y02E40/34 ,  Y02E40/76 ,  Y02E60/76 ,  Y04S10/545 ,  Y04S40/22

    摘要： A voltage control system and method for multiple windfarms (810, 815, 820) with transmission lines (898). Voltage is regulated at a point of regulation (825) on the system, such as a high voltage substation or other system bus. At least one other constraint point in the system may be monitored and controlled to prevent voltage exceeding the limit at the point of constraint. Regulation is achieved at the point of regulation (825) by sensing the voltage, comparing to a reference voltage (847), and adjusting the reactive power output of the wind turbines (60) and other equipment in the system. The regulation point (825) may be shifted to at least one other constraint point (805) needed to respect voltage limits at that points of the system after attempting to shift reactive load to restore voltage within limits at the other points in the system. The reference voltage (847) may be adjusted to minimize losses for the system of multiple windfarms and transmission lines. A loss optimizing algorithm (890) is applied to the combined multiple windfarm and transmission lines (898) to shift reactive load (850, 851, 852) among local windfarms (810, 815, 820) and transmission lines (898) to minimize losses and to shift reactive load among individual wind turbines (60) within an individual windfarm.

    摘要翻译： 一种用于具有传输线（898）的多个风电场（810,815,820）的电压控制系统和方法。 电压在系统的调节点（825）进行调节，例如高压变电站或其他系统总线。 可以对系统中的至少一个其他约束点进行监视和控制，以防止电压超过限制点处的极限。 在调节点（825）通过感测电压，与参考电压（847）进行比较以及调节系统中风力涡轮机（60）和其他设备的无功功率输出来实现调节。 在尝试转换无功负载以恢复系统中其它点处的限制内的电压之后，调节点（825）可以移位到在系统的那些点处遵守电压限制所需的至少一个其他限制点（805）。 可以调整参考电压（847）以使多个风电场和传输线系统的损耗最小化。 将损失优化算法（890）应用于组合的多个风电场和传输线路（898）以在本地风力发电机组（810,815,820）和传输线路（898）之间移动无功负载（850,851,852）以最小化损失 并且在各个风力农场内的各个风力涡轮机（60）之间转移无功负载。

    METHOD AND SYSTEM FOR CONTROLLING VOLTAGE AND FREQUENCY IN AN ISOLATED NETWORK
    117.
    发明公开
    METHOD AND SYSTEM FOR CONTROLLING VOLTAGE AND FREQUENCY IN AN ISOLATED NETWORK 审中-公开
    用于控制隔离网络中的电压和频率的方法和系统

    公开(公告)号：EP3276771A1

    公开(公告)日：2018-01-31

    申请号：EP16771441.9

    申请日：2016-03-16

    申请人： Universidad Carlos III de Madrid

    发明人： RODRÍGUEZ AMENEDO, José Luis ,  ARNALTES GÓMEZ, Santiago

    IPC分类号： H02J3/18

    CPC分类号： H02J3/16 ,  H02J3/36 ,  H02J3/386 ,  Y02E10/763 ,  Y02E40/34 ,  Y02E60/60

    摘要： The invention relates to a method for controlling the voltage and frequency in an isolated grid, wherein the isolated grid comprises a busbar (5) that receives energy from at least one wind-driven power generator (1) and outputs same by means of a rectifier (2) towards a DC transmission link (4), and wherein the busbar (5) is connected to a capacitor bank (6). The method allows keeping the magnitude and frequency of the voltage in the busbar (5) constant if the direct component d (9) and quadrature component q (10) of the voltage vector (11) in the busbar (5) are kept constant. This is achieved by controlling the reactive power injected into the busbar (5), and in the event that the rectifier (2) is controlled, by controlling the firing angle of the thyristors.

    摘要翻译： 用于控制隔离电网中的电压和频率的方法技术领域本发明涉及一种用于控制隔离电网中的电压和频率的方法，其中该隔离电网包括汇流排（5），该汇流排从至少一个风力驱动的发电机（1）接收能量并且通过整流器 （2）朝向DC传输链路（4），并且其中所述母线（5）连接到电容器组（6）。 如果母线（5）中的电压矢量（11）的直接分量d（9）和正交分量q（10）保持恒定，则该方法允许保持母线（5）中的电压的幅度和频率恒定。 这是通过控制注入母线（5）的无功功率以及在整流器（2）被控制的情况下通过控制晶闸管的触发角来实现的。