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1. 发明申请

WO2006071150A1 ELECTRIC POWER FLOW CONTROL 审中-公开
标题翻译：电力流量控制
公开(公告)号：WO2006071150A1
公开(公告)日：2006-07-06
申请号：PCT/SE2004/002037
申请日：2004-12-27
申请人： ABB RESEARCH LTD. , GERTMAR, Lars , LINDAHL, Sture , KOLDBY-NIELSEN, Erik , WRAAE, Leif-Erik , CHRISTENSEN, Hans, C. , MANTERE, Juhani
发明人： GERTMAR, Lars , LINDAHL, Sture , KOLDBY-NIELSEN, Erik , WRAAE, Leif-Erik , CHRISTENSEN, Hans, C. , MANTERE, Juhani
IPC分类号： H02J3/38 , H02J13/00 , H02H7/08 , H02H7/26
CPC分类号： H02H7/067 , H02J3/386 , Y02E10/763 , Y10T307/696
摘要： A farm comprising a plurality of electric power generation units (1) connected to a grid point (14) of a power network (9), wherein the power generation unit are organized in a plurality of upstream branches (6, 8), each upstream branch being separable from an adjacent downstream branch by an interrupter (11. 12).
摘要翻译：一种农场，包括连接到电网（9）的网格点（14）的多个发电单元（1），其中所述发电单元组织在多个上游分支（6,8）中，每个上游分支通过断续器与相邻的下游分支分开（11.12）。

2. 发明申请

WO2005062438A1 ELECTRIC POWER NETWORK 审中-公开
标题翻译：电力网络
公开(公告)号：WO2005062438A1
公开(公告)日：2005-07-07
申请号：PCT/SE2004/002003
申请日：2004-12-22
申请人： ABB RESEARCH LTD , CHRISTENSEN, Hans Christian , GERTMAR, Lars , LINDAHL, Sture , MANTERE, Juhani , KOLDBY NIELSEN, Erik , WRAAE, Leif-Erik
发明人： CHRISTENSEN, Hans Christian , GERTMAR, Lars , LINDAHL, Sture , MANTERE, Juhani , KOLDBY NIELSEN, Erik , WRAAE, Leif-Erik
IPC分类号： H02H3/02
CPC分类号： H02H3/025 , H02H7/06 , H02H7/093
摘要： A device for controlling at a fault condition an apparatus (2) connected by a connection line (5) to a grid point (4) of a transmission net (3) in an electric power network (1).
摘要翻译：一种用于在故障状态下控制通过连接线（5）连接到电力网络（1）中的传输网（3）的网格点（4）的装置（2）的装置。

3. 发明申请

WO2008020798A1 GROUND FAULT DETECTION 审中-公开
标题翻译：地面故障检测
公开(公告)号：WO2008020798A1
公开(公告)日：2008-02-21
申请号：PCT/SE2007/000724
申请日：2007-08-15
申请人： ABB RESEARCH LTD , JOHANSSON, Stefan G , FULCZYK, Marek , BENGTSSON, Tord , LINDAHL, Sture , OLGUIN, Gabriel
发明人： JOHANSSON, Stefan G , FULCZYK, Marek , BENGTSSON, Tord , LINDAHL, Sture , OLGUIN, Gabriel
IPC分类号： H02H3/17
CPC分类号： H02H3/17 , H02H1/0038 , H02H7/06
摘要： The present invention relates to a ground fault detection arrangement for a synchronous three-phase electrical machine, and an electrical system comprising a ground fault detection arrangement and a synchronous three-phase electrical machine. The ground fault detection arrangement injects an off-nominal frequency voltage between a neutral point of the synchronous three-phase electrical machine and ground and measure resultant currents to detect a ground fault.
摘要翻译：本发明涉及用于同步三相电机的接地故障检测装置，以及包括接地故障检测装置和同步三相电机的电气系统。接地故障检测装置在同步三相电机的中性点和接地之间注入标称频率电压，并测量合成电流以检测接地故障。

4. 发明申请

WO2005031940A1 SYSTEM FOR TRANSMISSION OF ELECTRIC POWER 审中-公开
标题翻译：电力传输系统
公开(公告)号：WO2005031940A1
公开(公告)日：2005-04-07
申请号：PCT/SE2004/001316
申请日：2004-09-13
申请人： ABB RESEARCH LTD , LINDAHL, Sture , JOHANSSON, Kenneth , FROMM, Udo , JOHANSSON, Stefan
发明人： LINDAHL, Sture , JOHANSSON, Kenneth , FROMM, Udo , JOHANSSON, Stefan
IPC分类号： H02J3/22
CPC分类号： H02J3/18 , H02J3/22 , Y02E40/30
摘要： The invention concerns a high voltage AC transmission cable system for transmitting power between two points, each connected to one or more power networks, and a method to operate the system. At least one transformer is arranged at each end of the AC transmission cable, wherein at least one said transformer is arranged to operate the transformer at a voltage whereby losses due to reactive power transport and dielectric losses are minimized. The AC cable is run at a variable voltage regulated such that the voltage is a function of the load for the transmission cable. This operating voltage is not necessarily the same as the nominal voltages in the connection points. In other aspects of the invention a control and communication system and a graphical user interface for carrying out the method is described.
摘要翻译：本发明涉及一种用于在两个点之间发射功率的高压AC传输电缆系统，每个点连接到一个或多个电力网络，以及一种操作该系统的方法。至少一个变压器布置在交流传输电缆的每个端部处，其中至少一个所述变压器被布置成以一定的电压来操作变压器，从而使由无功功率传输和介电损耗引起的损耗最小化。 AC电缆以可变电压调节运行，使得电压是传输电缆负载的函数。该工作电压不一定与连接点中的标称电压相同。在本发明的其他方面，描述了用于执行该方法的控制和通信系统和图形用户界面。

5. 发明申请

WO2005109593A1 METHOD AND EQUIPMENT FOR THE PROTECTION OF POWER SYSTEMS AGAINST GEOMAGNETICALLY INDUCED CURRENTS 审中-公开
标题翻译：用于保护电力系统的方法和设备对地磁感应电流
公开(公告)号：WO2005109593A1
公开(公告)日：2005-11-17
申请号：PCT/SE2005/000659
申请日：2005-05-04
申请人： FORSKARPATENT I SYD AB , AF KLERCKER ALAKÜLA, Mats , LINDAHL, Sture
发明人： AF KLERCKER ALAKÜLA, Mats , LINDAHL, Sture
IPC分类号： H02H9/00
CPC分类号： H01F27/38 , H01F27/34 , H01F27/345 , H01F30/12
摘要： The present invention relates to a method for protection of power transformers and other power system components, which are vulnerable to geomagnetically induced currents, which comprises feeding from an overhead line/s or cable conductor/s one or more DC-diverter consisting of primary diverter windings (11, 12, 13) and compensation windings (14, 15, 16) applied on a respective magnetic core leg, which diverter is connected to critical busses, and diverting "quasi" direct current flowing on the overhead lines or cable conductors as a result of the earth surface potential gradients caused by geomagnetically induced currents, as well as a DC diverter to carry out the method.
摘要翻译：本发明涉及一种用于保护电力变压器和其他电力系统部件的方法，其易受地磁感应电流的影响，该方法包括从架空线或电缆导体馈送一个或多个由主分流器组成的直流分流器绕组（11,12,13）和施加在相应的磁芯支脚上的补偿绕组（14,15,16），该分支器连接到临界总线，并将在顶线或电缆导体上流动的“准”直流转向为由地磁感应电流引起的地表电位梯度的结果，以及执行该方法的DC分流器。

6. 发明申请

WO2006068615A1 A METHOD AND A DEVICE FOR DETERMINING THE LOAD STATE OF POWER SYSTEM COMPONENTS 审中-公开
标题翻译：一种用于确定电力系统组件负载状态的方法和装置
公开(公告)号：WO2006068615A1
公开(公告)日：2006-06-29
申请号：PCT/SE2005/002011
申请日：2005-12-22
申请人： ABB AB , KARLSSON, Daniel , LINDAHL, Sture
发明人： KARLSSON, Daniel , LINDAHL, Sture
IPC分类号： H02H5/04 , G01K7/22 , G01R31/02 , H02H6/00 , H02H7/26
CPC分类号： G01K7/22 , G01K2215/00
摘要： The invention relates to a method for determining the load state in a power system component, such as a line, in an electric power system. The invention is achieved by: determining the reference temperature for the conductor material, determining current and voltage on the line, transferring these values to a calculating unit, calculating a value for the actual resistance of the line, based on current and voltage values, calculating the temperature, and hence the degree of load, of the line based on the above values. The invention also relates to a system and a computer program for carrying out the method.
摘要翻译：本发明涉及一种用于确定电力系统中诸如线路的电力系统部件中的负载状态的方法。本发明通过以下方式实现：确定导体材料的参考温度，确定线路上的电流和电压，将这些值转移到计算单元，基于电流和电压值计算线路的实际电阻值，计算基于上述值的线的温度和负载的程度。本发明还涉及一种用于执行该方法的系统和计算机程序。

7. 发明申请

WO2005064761A1 A METHOD AND A DEVICE FOR SELECTING AND DIMENSIONING MEASURES IN CASE OF INSTABILITY IN AN ELECTRICAL POWER SYSTEM 审中-公开
标题翻译：电力系统不稳定性选择与尺寸测量方法及装置
公开(公告)号：WO2005064761A1
公开(公告)日：2005-07-14
申请号：PCT/SE2004/002002
申请日：2004-12-23
申请人： ABB AB , KARLSSON, Daniel , LINDAHL, Sture
发明人： KARLSSON, Daniel , LINDAHL, Sture
IPC分类号： H02J3/12
CPC分类号： H02J3/24 , H02J2003/007 , Y02E60/76 , Y04S40/22 , Y10T307/391 , Y10T307/469 , Y10T307/724 , Y10T307/729
摘要： The invention relates to a method for determining/dimensioning measures for restoring an electrical power system, which experiences or is heading for a voltage instability, to a steady-state condition, wherein there is no immediate risk of instability by determining the actual voltage/phase angle in the electrical power system, determining the power unbalance within at least one sub-area in the electrical power system, determining suitable power-balancing measures, dimensioning the extent of the respective measure, and - carrying out the power-balancing measures. The invention also relates to a device for carrying out the method.
摘要翻译：本发明涉及一种用于确定/确定尺寸的措施的方法，该方法将经历或正在进入电压不稳定性的电力系统恢复到稳定状态，其中通过确定实际电压/相位不存在不稳定的立即风险确定电力系统中的至少一个子区域内的功率不平衡，确定适当的功率平衡措施，确定相应措施的范围，以及 - 执行功率平衡措施。本发明还涉及一种用于执行该方法的装置。

8. 发明申请

WO2004040733A1 DIFFERENTIAL PROTECTION FOR SYNCHRONOUS MACHINES 审中-公开
标题翻译：同步机的差分保护
公开(公告)号：WO2004040733A1
公开(公告)日：2004-05-13
申请号：PCT/EP2003/050710
申请日：2003-10-13
申请人： ALSTOM TECHNOLOGY LTD , LINDAHL, Sture
发明人： LINDAHL, Sture
IPC分类号： H02H7/06
CPC分类号： H02H7/06 , H02H3/28
摘要： In an AC electric generator such as the Powerformer TM voltages are induced in phase windings (1 A , 1 B , 1 C ) connected at one end to each other at a neutral point (5, N) and at an opposite end to phase terminals (5 A , 5 B , 5 C ). For each phase winding a value indicative of the magnitude of an excess or rest electric current flowing into the winding that is not related to the currents at the neutral point and phase terminal ends not to the current flowing through the capacitance of the phase winding is calculated (47 A , 49 A , 51 A , 47 B , 49 B , 51 B ; 47 C , 49 C , 51 C ) and compared to a threshold value (51 A , 51 B , 51 C ). Circuit breakers (25 A , 25 B , 25 C ) are activated (53 A , 53 B , 53 C ) and an alarm is issued (55 A , 55 B , 55 C ) if the calculated magnitude is found to be high. These actions can be inhibited if some other conditions apply such as that the magnitudes of the currents at the neutral point and phase terminal ends are sufficiently high. A compensated differential protection is obtained that can detect shunt faults occurring in the windings.
摘要翻译：在诸如Powerformer TM之类的交流发电机中，电压在相位绕组（1A，1B，1C）中感应，相绕组（1A，1B，1C）在中性点（5，N）的一端相互连接， 5A，5B，5C）。对于每个相绕组，计算表示流过绕组的过剩或静止电流的大小的值，其与中性点和相位端子端处的电流无关，而不是流过相绕组的电容的电流（47A，49A，51A，47B，49B，51B; 47C，49C，51C），并与阈值（51A，51B，51C）进行比较。如果发现计算出的大小，断路器（25A，25B，25C）被激活（53A，53B，53C）并发出报警（55A，55B，55C）。如果某些其他条件适用，例如中性点和相位末端的电流的大小足够高，则可以抑制这些动作。获得可以检测绕组中发生的分流故障的补偿差动保护。

9. 发明申请

WO2004040732A1 EARTH FAULT PROTECTION FOR SYNCHRONOUS MACHINES 审中-公开
标题翻译：同步机的接地故障保护
公开(公告)号：WO2004040732A1
公开(公告)日：2004-05-13
申请号：PCT/EP2003/050709
申请日：2003-10-13
申请人： ALSTOM TECHNOLOGY LTD , LINDAHL, Sture
发明人： LINDAHL, Sture
IPC分类号： H02H7/06
CPC分类号： H02H7/06 , H02H3/081 , H02H3/52
摘要： For a synchronous electric generator an earth fault detection or protection circuit is provided using extracted (35 A , 35 B , 35 C ) third order harmonic currents ( I a3 , I b3 , I c3 ) in the phase windings (1 A , 1 B , 1 C ) at locations at the neutral point (N, 5). From the third order harmonic currents, directional criteria ( D a , D b , D c ) for each phase winding are calculated (35) indicating the relative magnitude of the third order harmonic current reduced by the other third order harmonic currents. The directional criteria are compared (37) to a normal value valid and it is signalled, when at least one of the directional criteria deviate too much from the normal value, to a control device (39) for disconnecting or disabling the phase windings. Two other criteria, a fault detection criterion ( FC ) and a range control criterion ( RC ) are also calculated (41; 49) that can prevent the control device from issuing any signal. The earth fault protection circuit can detect earth faults occurring close the neutral point and can be used in all synchronous machines, which have a neutral point that is isolated or earthed through a large impedance, and which are connected directly to either a non-effectively earthed power network or an effectively earthed power network, for instance high voltage generators of the type Powerformer TM .
摘要翻译：对于同步发电机，在相位绕组（1A，1B，1C）中在中性位置处提取（35A，35B，35C）三次谐波电流（Ia3，Ib3，Ic3）提供接地故障检测或保护电路点（N，5）。根据三阶谐波电流，计算每个相绕组的方向标准（Da，Db，Dc）（35），表示三次谐波电流相对于其他三次谐波电流减小的相对幅值。将方向准则与正常值进行比较（37）有效，并且当方向准则中的至少一个与正常值偏离太多时，将信号发送到用于断开或禁用相绕组的控制装置（39）。还计算了另外两个标准，故障检测准则（FC）和范围控制标准（RC）（41; 49），可以防止控制设备发出任何信号。接地故障保护电路可以检测发生在中性点附近的接地故障，可用于所有同步电机，它们具有通过大阻抗隔离或接地的中性点，并直接连接到无效接地电力网络或有效接地的电力网络，例如Powerformer TM类型的高电压发生器。

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