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1. 发明申请

WO2009118048A1 PHASOR ESTIMATION DURING CURRENT TRANSFORMER SATURATION 审中-公开
标题翻译：电流互感器饱和期间的相对估计
公开(公告)号：WO2009118048A1
公开(公告)日：2009-10-01
申请号：PCT/EP2008/053749
申请日：2008-03-28
申请人： ABB Technology AG , AKKE, Magnus , WESTMAN, Björn , ÅSHUVUD, Henrik
发明人： AKKE, Magnus , WESTMAN, Björn , ÅSHUVUD, Henrik
IPC分类号： G01R15/18 , H02H1/04
CPC分类号： G01R15/183 , H02H1/046
摘要： The present invention relates to a method, device and computer program product for determining at least one property of a current (I p ) running through the primary winding of a transformer operating in saturation using an unreliable detected current (I s ) running through the secondary winding of the transformer. According to the invention a first reliable extreme point (EP1) of a cycle of the current in the secondary winding is detected and compared with an absolute time reference. Based on the comparison a first property of the current running through the primary winding in the form of the phase angle is then determined.
摘要翻译：本发明涉及一种方法，装置和计算机程序产品，用于通过运行在次级绕组的次级绕组中的不可靠的检测电流（Is）来确定运行在饱和的变压器的初级绕组中的电流（Ip）的至少一个性质，变压器。根据本发明，检测次级绕组中的电流的循环的第一可靠极限点（EP1），并将其与绝对时间基准进行比较。基于比较，然后确定以相位角形式穿过初级绕组的电流的第一特性。

2. 发明申请

WO2010037413A1 A METHOD AND A DEVICE FOR CONSTRUCTING NEW SAMPLE VALUES USED IN A FIR ALGORITHM 审中-公开
标题翻译：一种用于构造FIR算法中使用的新样本值的方法和装置
公开(公告)号：WO2010037413A1
公开(公告)日：2010-04-08
申请号：PCT/EP2008/063063
申请日：2008-09-30
申请人： ABB TECHNOLOGY AG , AKKE, Magnus , WESTMAN, Björn , ÅSHUVUD, Henrik
发明人： AKKE, Magnus , WESTMAN, Björn , ÅSHUVUD, Henrik
IPC分类号： H03H17/06
CPC分类号： H03H17/0628 , G01R19/2509 , H03H17/028
摘要： The present invention relates to the method and a device for constructing new sample values to be used in a Finite Impulse Response, denoted FIR, algorithm, wherein a sampled analog signal contains at least a periodic fundamental component that has an actual period length that may deviate from a nominal period length, the device (3) comprises: a measuring unit (7) configured to continuously measure an actual fundamental frequency of the analog signal, a sampling unit (1 ) for sampling the analog signal at controlled time steps, a first storage (2) for storing the sample values as original sampling values, a system period length determination module (8) configured to continuously determine the actual fundamental period length based on the measured the actual fundamental frequency, a calculating unit (6) configured, to determine a new sampling time step based on the actual fundamental period length such that the number of new sampling time steps in the actual fundamental period is the same as the number of original sampling time steps in the nominal fundamental period, to calculate, for a finite number of stored original sample values, a finite number of new sample values, using said new sampling time step, wherein each of new sample values is calculated based on at least two original sample values, and a second storage unit (4) for storing the new calculated sample values.
摘要翻译：本发明涉及用于构造用于有限脉冲响应的新样本值的方法和装置，其表示为FIR算法，其中采样的模拟信号至少包含具有可能偏离的实际周期长度的周期性基本分量设备（3）包括：测量单元（7），被配置为连续地测量模拟信号的实际基频;采样单元（1），用于以受控的时间步长对模拟信号进行采样;第一存储器（2），用于将样本值存储为原始采样值;系统周期长度确定模块（8），被配置为基于测量的实际基频连续地确定实际基本周期长度;计算单元（6），被配置为根据实际基本周期长度确定新的采样时间步长，使得实际基本周期中的新采样时间步长数量为sa 我作为标称基本周期中的原始采样时间步长的数量，使用所述新的采样时间步长来计算对于有限数量的存储的原始采样值有限数量的新采样值，其中新的采样值是基于至少两个原始样本值计算的第二存储单元（4），用于存储新计算的样本值。

3. 发明申请

WO2009076991A1 FAULT DIRECTION DETERMINATION 审中-公开
标题翻译：故障方向确定
公开(公告)号：WO2009076991A1
公开(公告)日：2009-06-25
申请号：PCT/EP2007/063937
申请日：2007-12-14
申请人： ABB TECHNOLOGY AG , AKKE, Magnus , WESTMAN, Björn , ÅSHUVUD, Henrik
发明人： AKKE, Magnus , WESTMAN, Björn , ÅSHUVUD, Henrik
IPC分类号： H02H3/38
CPC分类号： H02H3/382
摘要： The invention concerns a method and computer program product for determining the direction of fault in an electrical power system as well as to a fault handling device. In the fault handling device the voltage at a measurement node of the power system is measured, the phase (Φ PF ) of this voltage (V PF ) before a fault is stored, the phase (Φ F ) of this voltage (V F ) at the end of a time interval (TI) following directly after a detected fault is determined, a phase offset (ΦO) is determined as the difference between the phase (Φ PF ) of the measured voltage (V PF ) before the fault and the phase (Φ F ) of the measured voltage (V F ) at the end of the time interval (TI) and the phase (Φ F ) of the measured voltage (V F ) after the detection of the fault is adjusted with the phase offset (Φ O ). Thereafter the adjusted measured voltage is used in determining the direction of fault in relation to the measurement node.
摘要翻译：本发明涉及一种用于确定电力系统以及故障处理装置中的故障方向的方法和计算机程序产品。在故障处理装置中，测量电力系统测量节点的电压，存储故障前的该电压（VPF）的相位（FPF），该电压（VF）的相位（FF）在确定检测到的故障之后的时间间隔（TI）之后，将相位偏移（FO）确定为故障之前的测量电压（VPF）的相位（FPF）与相位差（FF）之间的差使用相位偏移（FO）调整故障检测后的时间间隔（TI）结束时的测量电压（VF）和测量电压（VF）的相位（FF）。此后，调整后的测量电压用于确定相对于测量节点的故障方向。

4. 发明申请

WO2008046451A1 LOAD COMPENSATION IN DISTANCE PROTECTION OF A THREE-PHASE POWER TRANSMISSION LINE 审中-公开
标题翻译：三相输电线路距离保护的负载补偿
公开(公告)号：WO2008046451A1
公开(公告)日：2008-04-24
申请号：PCT/EP2006/067552
申请日：2006-10-18
申请人： ABB TECHNOLOGY LTD , AKKE, Magnus , WESTMAN, Björn , ÅSHUVUD, Henrik
发明人： AKKE, Magnus , WESTMAN, Björn , ÅSHUVUD, Henrik
IPC分类号： H02H3/08
CPC分类号： H02H3/402 , G01R31/088
摘要： The present invention relates to a load compensation method for phase-to-ground loops in distance protection, comprising following steps: estimating a first reactive reach (αc) assuming zero fault resistance or with a positive sequence current; estimating a second reactive reach (α0) with a zero sequence current; estimating a third reactive reach (α2) with a negative sequence current; estimating import or export condition; estimating a fourth reactive reach for import (αi) or export (αe) condition based on the first, second and third reactive reach; and estimating a fault impedance based on the estimated fourth reactive reach.
摘要翻译：本发明涉及一种距离保护中相对地环路的负载补偿方法，包括以下步骤：假设零故障电阻或正序电流估计第一无功范围（ac）; 以零序电流估计第二反应达到（a0）; 以负序电流估计第三反应达到（a2）; 估计进出口情况; 根据第一，第二和第三无效范围估计进口（ai）或出口（ae）条件的第四个反应性达到率; 并基于估计的第四无功范围来估计故障阻抗。

5. 发明申请

WO2012171694A1 A METHOD FOR DETECTING EARTH FAULTS 审中-公开
标题翻译：一种检测地震故障的方法
公开(公告)号：WO2012171694A1
公开(公告)日：2012-12-20
申请号：PCT/EP2012/057616
申请日：2012-04-26
申请人： DLABORATORY SWEDEN AB , AKKE, Magnus
发明人： AKKE, Magnus
IPC分类号： G01R31/02 , H02H1/00 , H02H3/42 , G01R31/08
CPC分类号： G01R31/025 , G01R31/086 , G01R31/088 , Y04S10/522
摘要： The invention concerns a method for reliable detecting and monitoring of a multitude of different earth faults in three-phase electric power distribution networks. A method is presented which combines a transient estimation method with a modified phasor based wattmetric method. The transient method estimates the capacitance and conductance of each feeder and also for the neutral point device, and uses this to find the faulted feeder. The modification of the wattmetric method is to use the negative derivative of the neutral point voltage phasor magnitude to identify when the fault is not connected and then disable (block) the active power criterion.
摘要翻译：本发明涉及一种可靠地检测和监测三相配电网络中多种不同接地故障的方法。提出了一种将瞬态估计方法与基于修正相量的瓦特方法相结合的方法。瞬态方法估计每个馈线的电容和电导以及中性点器件的电导率，并使用它来找到故障馈线。瓦特方法的修改是使用中性点电压相量幅度的负导数来识别故障何时未连接，然后禁用（阻塞）有功功率标准。

6. 发明申请

WO2002078147A1 POWER PLANT WITH MEANS FOR DAMPING POWER OSCILLATIONS 审中-公开
标题翻译：动力装置具有阻尼功率振荡的功能
公开(公告)号：WO2002078147A1
公开(公告)日：2002-10-03
申请号：PCT/SE2002/000419
申请日：2002-03-08
申请人： ABB AB , KARLSSON, Daniel , AKKE, Magnus
发明人： KARLSSON, Daniel , AKKE, Magnus
IPC分类号： H02J3/24
CPC分类号： H02J3/24
摘要： The invention relates to an electrical installation comprising at least one generator and at least one braking resistor. The braking resistor is adapted to damp power oscillations of the power system and/or to prevent out-of-phase situations. According to the invention, the braking resistor is in the form of a device arranged in the installation for a different purpose and suited for power consumption. The invention also relates to a microprocessor and a computer program product for use in such an installation. Further, the invention relates to a method for damping power oscillations in which, according to the invention, a device arranged in the installation for a different purpose, and suited for power consumption, is used as a braking resistor. The invention also relates to a method for rebuilding a power plant.
摘要翻译：本发明涉及包括至少一个发电机和至少一个制动电阻器的电气设备。制动电阻器适于阻止电力系统的功率振荡和/或防止异相情况。根据本发明，制动电阻器是设置在设备中以用于不同目的并适合于功率消耗的装置的形式。本发明还涉及一种用于这种安装的微处理器和计算机程序产品。此外，本发明涉及一种用于阻尼功率振荡的方法，其中根据本发明，将布置在用于不同目的并且适合于功耗的装置中的装置用作制动电阻器。本发明还涉及一种重建发电厂的方法。

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