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21. 发明公开

EP2738905A2 System and method for detecting a grid event 审中-实审转让
标题翻译：系统和方法，用于检测电网事件
公开(公告)号：EP2738905A2
公开(公告)日：2014-06-04
申请号：EP13192888.9
申请日：2013-11-14
申请人： General Electric Company
发明人： Wagoner, Robert Gregory , Ritter, Allen Michael , Shepard, Mark Eugene , Haque, Talha Irfanul
IPC分类号： H02J3/38
CPC分类号： G01R27/16 , G01R31/42 , H02J3/381 , H02J3/383 , H02J3/386 , H02J2003/388 , Y02E10/563 , Y02E10/763
摘要： A system and method for detecting a grid event is provided. The method includes sampling 502 grid voltage and grid current over a fixed period of time; determining 504 grid impedance at one or more frequencies using the sampled grid voltage and the sampled grid current; comparing 506 the grid impedance at the one or more frequencies to a known expected grid impedance at the one or more frequencies; and detecting 508 a grid event based on the comparison.

22. 发明公开

EP2713477A1 Verfahren zum Betreiben einer elektrischen Schaltung für einen Windpark 有权转让
标题翻译：的风电场操作的电路的方法
公开(公告)号：EP2713477A1
公开(公告)日：2014-04-02
申请号：EP12189966.0
申请日：2012-10-25
申请人： Alstom Technology Ltd
发明人： Hentschel, Gert
IPC分类号： H02J9/04 , F03D9/00 , H02J3/38
CPC分类号： F03D9/257 , H02J3/386 , H02J9/04 , H02J2003/388 , Y02B10/72 , Y02E10/72 , Y02E10/763 , Y02E10/766
摘要： Die Erfindung betrifft ein Verfahren zum Betreiben einer elektrischen Schaltung (10) für einen Windpark, wobei die elektrische Schaltung (10) ein erstes Netz (16) aufweist, wobei das erste Netz (16) in einem Normalbetrieb, in dem mindestens ein von einer Windenergieanlage (11) angetriebener Generator (13) mit dem ersten Netz (16) gekoppelt ist, mit einer ersten Betriebsspannung betrieben wird, dadurch gekennzeichnet, dass das erste Netz (16) in einer von dem Normalbetrieb verschiedenen zweiten Betriebsart mit einer zweiten Betriebsspannung betrieben wird, wobei die zweite Betriebsspannung kleiner ist als die erste Betriebsspannung.
摘要翻译：该方法涉及在正常动作的电路（10），在工作电压的帧内园网（16）上操作。电风能系统生成器（13），其由风能系统（11）驱动被耦合在正常操作的网络。该网络与operatingMode在另一个工作电压从正常的手术，后者的工作电压是前者的工作电压较小不同操作。发电机不再加上网络和/或网络，从在操作模式电网分离。因此独立claimsoft被包括在电路。

23. 发明公开

EP2709226A1 Schaltungsanordnung, sowie Pegelwandler und Vergleicherschaltung für die Schaltungsanordnung 有权转让
标题翻译： Schaltungsanordnung，sowie Pegelwandler und Vergleicherschaltungfürdie Schaltungsanordnung
公开(公告)号：EP2709226A1
公开(公告)日：2014-03-19
申请号：EP13184187.6
申请日：2013-09-12
申请人： Kostal Industrie Elektrik GmbH
发明人： Bartling, Ralf, Dr.
IPC分类号： H02H3/05 , H02J3/38
CPC分类号： H02H3/05 , H02J3/381 , H02J2003/388
摘要： Beschrieben wird eine Schaltungsanordnung (A) zur Überwachung von Spannungen an Phasenleitern (L1,L2,L3) an einer Netzfreischaltstelle zwischen einem Wechselrichter (WR) und einem Wechselspannungsnetz (WN), sowie einen Pegelwandler (PW2) und eine Vergleicherschaltung (V) für eine derartige Schaltungsanordnung. Durch die erfindungsgemäße Schaltungsanordnung kann eine Überwachung aller Phasenspannungen einfehlersicher und konform zu den derzeit gültigen Normen und Anwendungsrichtlinien ausführt werden. Die Spannungsüberwachung beinhaltet mindestens einen relativ komplexen Verarbeitungsschritt durch einen Mikrocontroller (MC), aus dessen korrekter Ausführung die Funktionsfähigkeit des Mikrocontrollers gefolgert werden kann. Ein bei diesem Verarbeitungsschritt auftretender Fehler wird insbesondere durch einen als Spannungsvergleicherschaltung ausgeführten Überwachungsbaustein (V) aufgedeckt.
Abb. 1
摘要翻译：该装置具有连接到电平转换器（PW1，PW2）的相位导体（L1-L3），其输出连接到微控制器（MC）的电压检测输入（A-D）和监视模块的输入。微控制器向每个相导体输出脉宽调制信号（PWM2），其占空比取决于电压检测输入的电压值。电压比较器（V）比较输入端子（VE1，VE2）的电压电平，取决于逻辑模块（V1，V2）的数字断电信号输出的电压值，以控制受控断路器（R2）。包括用于电路设备的电平传感器的独立权利要求。

24. 发明公开

EP2632011A1 METHOD FOR IMPLEMENTING ON/OFF-GRID DUAL-MODE OPERATION OF BIDIRECTIONAL CONVERTER IN MICRO POWER GRID 审中-公开
标题翻译：方法的用于实现双向转换器的ON / OFF GRID DOUBLE模式操作在笼子微电流
公开(公告)号：EP2632011A1
公开(公告)日：2013-08-28
申请号：EP11863961.6
申请日：2011-12-14
申请人： Henan Electric Power Corporation Electric Power Science Research Institute , Beijing Soaring Electric Technology Co. Ltd. , State Grid Corporation of China
发明人： LI, Zhaohui , WANG, Jing , YU, Xiaopeng , YANG, Haijing , WANG, Yang , LIU, Wei , LIU, Bo , YANG, Baosheng
IPC分类号： H02J3/38
CPC分类号： H02J3/383 , H02J3/386 , H02J3/387 , H02J7/34 , H02J9/06 , H02J2003/388 , Y02B10/72 , Y02B90/14 , Y02E10/563 , Y02E10/566 , Y02E10/763
摘要： The present invention provides a method for realizing on/off-grid dual-mode operation of a bidirectional converter in a micro power grid, wherein an on/off-grid controller in the micro power grid detects if the large power grid loses power or the power supply is resumed, instructions of "prepare to go off-grid", "go off-grid", "prepare to go on-grid", or "go on-grid" are sent to the bidirectional converter in an interface form of two-bit binary code, meanwhile the on/off-grid controller communicates with the micro power grid control system, and the micro power grid control system sends instruction signal of "charge/discharge power" to make the bidirectional converter perform a corresponding operation. When the large power grid loses power, the bidirectional converter will immediately transfer from the on-grid operation state to the off-grid operation state and switch to the operating mode of voltage source. Without additional investment on facility, this method solves the problem that the energy storage system and photovoltaic on-grid inverter can not work after the large power grid loses power, and the problem that it's difficult to set up a micro power grid system, and meanwhile it realizes a fast and seamless conversion between off-grid operation and on-grid operation in the micro power grid control.
摘要翻译：本发明提供了一种用于实现上的双向转换器的开/关栅双模式操作的微电网，在微电网worin开/关栅控制器检测，如果大电网松散功率或供电恢复中，“准备去离网”，“走离网”，指示“准备去网”或“去网”发送到双向转换器中的接口形式两比特的二进制码，同时开/关栅控制器与所述微电网控制系统进行通信，并且所述微电网控制系统发出“充电/放电功率”的指令信号，以使所述双向转换器执行相应的操作。当大电网松散功率时，双向转换器将立即从并网operationState转移到离网operationState并切换到电压源的运行模式。如果没有对工厂追加投资，这种方法可以解决问题，做了储能系统和光伏并网逆变器不能大功率无网电后工作和问题，也很难建立一个微电网系统，同时它实现离网之间和在栅操作操作在微电网控制快速和无缝的转换。

25. 发明公开

EP2501014A9 Method and apparatus for detecting islanding conditions of distributed generator 有权转让
标题翻译：用于检测分布式发电机的孤岛条件的方法和装置
公开(公告)号：EP2501014A9
公开(公告)日：2013-01-16
申请号：EP11158034.6
申请日：2011-03-14
申请人： ABB Research Ltd.
发明人： Timbus, Adrian , Oudalov, Alexandre , Escobar, Gerardo , Serpa, Leonardo-Augusto
IPC分类号： H02J3/38
CPC分类号： H02J3/38 , H02J2003/388
摘要： A method for detecting islanding conditions for distributed generators connected to a grid. The method comprises steps of estimating a grid impedance, inducing, on the basis of the estimated grid impedance, a variation on a value of a first electrical quantity of the grid, monitoring a grid response to the variations, and determining islanding conditions on the basis of the monitored response.

26. 发明公开

EP2532065A2 DETECTION OF ISLANDING FOR GRID CONNECTED INVERTER 无效转让
标题翻译：岛教育工作电源逆变器PROOF
公开(公告)号：EP2532065A2
公开(公告)日：2012-12-12
申请号：EP11703973.5
申请日：2011-01-31
申请人： Xantrex Technology Inc.
发明人： YIN, Jun , FAN, Chi-Sheng , GARABANDIC, Djordje
IPC分类号： H02J3/38 , H02J3/00
CPC分类号： H02J3/383 , H02J2003/388 , Y02E10/563 , Y10T307/522 , Y10T307/729
摘要： An anti-islanding implementation that introduces a small, continuously varying phase shift pattern in the output current of an inverter. In grid-connected mode, this phase shift pattern has no impact on the frequency of the inverter's output voltage. However, when islanded, the phase shift will cause the voltage frequency to deviate from nominal. Changes in the output current phase thus correlate well with the voltage frequency, so a covariance index is used to detect an islanding configuration. When this index exceeds a threshold, a larger phase shift pattern is introduced in the output current, large enough to cause the voltage frequency to fall outside the inverter's trip protection window without compromising the inverter's power quality yet ensuring reliable tripping of the inverter.

27. 发明公开

EP2501014A1 Method and apparatus for detecting islanding conditions of distributed generator 有权转让
标题翻译：用于检测分布式发电机的孤岛条件的方法和装置
公开(公告)号：EP2501014A1
公开(公告)日：2012-09-19
申请号：EP11158034.6
申请日：2011-03-14
申请人： ABB Research Ltd.
发明人： Timbus, Adrian , Oudalov, Alexandre , Escobar, Gerardo , Serpa, Leonardo-Augusto
IPC分类号： H02J3/38
CPC分类号： H02J3/38 , H02J2003/388
摘要： A method for detecting islanding conditions for distributed generators connected to a grid. The method comprises steps of estimating a grid impedance, inducing, on the basis of the estimated grid impedance, a variation on a value of a first electrical quantity of the grid, monitoring a grid response to the variations, and determining islanding conditions on the basis of the monitored response.
摘要翻译：一种用于检测用于连接到电网的发电机分布式孤岛条件方法。该方法包括的基础上估计电网阻抗，诱导，估计的电网阻抗，在网格上的第一电量的值的变化的基础上，监测网格响应于变化的步骤，和确定的采矿孤岛条件的监测的响应。

28. 发明公开

EP2403122A2 System and method for control of multiphase power converters 有权转让
标题翻译：系统和Verfahren zur Steuerung eines Mehrphasenstromrichters
公开(公告)号：EP2403122A2
公开(公告)日：2012-01-04
申请号：EP11170691.7
申请日：2011-06-21
申请人： General Electric Company
发明人： Garces Rivera, Luis Jose , Kusch, Ruediger Soeren , Xu, Chunchun
IPC分类号： H02M7/483 , H02M7/48
CPC分类号： H02M7/48 , H02J3/12 , H02J3/32 , H02J3/38 , H02J3/382 , H02J3/387 , H02J2003/388
摘要： A control system (34) for controlling a multiphase power converter (12) includes a current control module (40), a voltage control module (100) and a current command selector (33). The current control module (40) generates grid voltage command signals for the multiphase power converter (12) and the voltage control module (100) generates reference converter current command signals for the current control module (40). The current command selector (33) supplies active and reactive current command signals from a supervisory controller (27) to the current control module (40) when the multiphase power converter (12) is connected to the grid and supplies the reference converter current command signals to the current control module (40) when the multiphase power converter (12) is unconnected to the grid.
摘要翻译：一种用于控制多相功率转换器（12）的控制系统（34）包括电流控制模块（40），电压控制模块（100）和电流指令选择器（33）。电流控制模块（40）产生用于多相电力转换器（12）的电网电压指令信号，并且电压控制模块（100）产生用于电流控制模块（40）的参考转换器电流指令信号。当多相功率转换器（12）连接到电网并且提供参考转换器电流指令信号时，电流指令选择器（33）将来自监控控制器（27）的有功和无功电流指令信号提供给电流控制模块（40）当所述多相功率转换器（12）未与所述电网连接时，连接到所述电流控制模块（40）。

29. 发明公开

EP2082132A2 METHOD FOR CONTROLLING A CLUSTER OF WIND TURBINES CONNECTED TO A UTILITY GRID, METHOD FOR PLANNING THE STRATEGY OF A UTILITY GRID INCLUDING A WIND TURBINE CLUSTER CONNECTED TO THE GRID AND WIND TURBINE CLUSTER. 有权
标题翻译：用于控制风力涡轮机的一组供电网络的方法是连及级风电机组
公开(公告)号：EP2082132A2
公开(公告)日：2009-07-29
申请号：EP07817885.2
申请日：2007-11-08
申请人： Vestas Wind Systems A/S
发明人： HELLE, Lars , NIELSEN, John Godsk
IPC分类号： F03D9/00
CPC分类号： F03D7/0284 , F03D7/048 , F03D9/255 , F05B2220/706 , F05B2270/1033 , F05B2270/20 , F05B2270/337 , H02J3/386 , H02J2003/388 , Y02E10/723 , Y02E10/725 , Y02E10/763 , Y10T307/702 , Y10T307/735
摘要： A method for controlling a cluster of wind turbines connected to a utility grid includes the steps of determining the frequency of the utility grid, detecting a frequency deviation in the utility grid, and disconnecting the wind turbines at different predefined frequency values above the nominal frequency value. The invention also relates to a method for planning the strategy of a utility grid including a wind turbine cluster connected to the grid and a wind turbine cluster.
摘要翻译：一种用于控制连接到公用电网的风力涡轮机的群集方法包括确定性挖掘的步骤的公用电网的频率，检测所述公用电网的频率偏差，和断开标称频率值以上在不同的预定频率值的风力涡轮机，因此，本发明涉及用于规划公用电网包括连接到电网和风力涡轮机群集的风力涡轮机群集的策略的方法。

30. 发明公开

EP1969692A2 LOCATION DETERMINATION OF POWER SYSTEM DISTURBANCES BASED ON FREQUENCY RESPONSES OF THE SYSTEM 有权
标题翻译：基于系统的时频TRANSITIONS电力系统病症的LOCAL测定
公开(公告)号：EP1969692A2
公开(公告)日：2008-09-17
申请号：EP06838659.8
申请日：2006-11-30
申请人： VIRGINIA TECH INTELLECTUAL PROPERTIES, INC.
发明人： GARNDER, Robert, Matthew , ZHONG, Zhian , LIU, Yilu
IPC分类号： H02J3/12
CPC分类号： H02J3/08 , H02J3/38 , H02J2003/388
摘要： A system for detecting and locauong a disturbance event within a power gπd includes a seπes of frequency disturbance recorders (FDRs) taking measurements in the power gπd at dispersed points of the power gπd, an information management system, configured to receive data from the seπes of FDRs and analyze the received data and a communications network interconnecting the seπes of FDRs and the information management system The information management system is configured to examine orders (1, 2, 5, 6) and patterns of receipt of frequency changes at the FDRs in the data caused by the disturbance event and to trangulate a location of the disturbance event based on the orders and patterns of receipt of the frequency changes.

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