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1. 发明申请

WO2014205089A1 CONVERTER STATION POWER SET POINT ANALYSIS SYSTEM AND METHOD 审中-公开
标题翻译：转换站功率点分析系统和方法
公开(公告)号：WO2014205089A1
公开(公告)日：2014-12-24
申请号：PCT/US2014/042962
申请日：2014-06-18
申请人： ABB RESEARCH LTD. , DAS, Debrup , NUQUI, Reynaldo
发明人： DAS, Debrup , NUQUI, Reynaldo , LARSSON, Mats
IPC分类号： H02J3/34 , H02J3/38 , G05F1/66 , H02J3/36 , G05B17/00 , G05B19/00
CPC分类号： H02J3/14 , G06F1/3203 , H02J3/34 , H02J3/36 , H02J3/38 , Y02E60/60
摘要： Converter stations (104) have real and reactive power set points initially determined as part of a main loadflow analysis routinely performed on the AC power system connected to the converter stations (104). Viable real and/or reactive power set points for the converter stations (104) can be identified by calculating real and/or reactive power set point candidates for the converter stations (104) before the main loadflow analysis is performed again on the AC power system. The power set point candidates are calculated based on information determined as part of a previous iteration of the main loadflow analysis on the AC power system. The power set point candidates which violate an operating constraint imposed on the AC power system are identified, and a region of valid power set points is defined for the converter stations (104) that excludes the power set point candidates which violate an operating constraint imposed on the AC power system.
摘要翻译：转换器站（104）具有最初确定为在连接到转换器站（104）的AC电力系统上常规执行的主要负载流分析的一部分的实际和无功功率设定点。可以通过在AC电力系统再次执行主负载流分析之前计算转换器站（104）的实际和/或无功功率设定点候选来识别转换站（104）的可行实际和/或无功功率设定点。功率设定点候选是基于作为交流电力系统主负载流分析的先前迭代的一部分确定的信息来计算的。识别违反施加在AC电力系统上的操作约束的功率设定点候选，并且为转换器站（104）定义有效功率设定点的区域，该转换器站（104）排除违反施加在操作约束条件下的操作约束的功率设定点候选交流电源系统。

2. 发明申请

WO2014189725A1 DETECTING ELECTRICAL ISLANDS USING WIDE-AREA MEASUREMENTS 审中-公开
标题翻译：使用大面积测量检测电气岛
公开(公告)号：WO2014189725A1
公开(公告)日：2014-11-27
申请号：PCT/US2014/037875
申请日：2014-05-13
申请人： ABB RESEARCH LTD. , NUQUI, Reynaldo
发明人： NUQUI, Reynaldo , KRATA, Jarosław , BALCEREK, Przemysław
IPC分类号： G06F1/26
CPC分类号： H02J3/38 , H02J3/381 , H02J2003/388
摘要： Islanding events are detected using measurement information taken from several places in a network, e.g., from a system of intelligent electronic devices (lEDs ). In an example method of island detection, phase angle differences between local phase angles and remote phase angles in remote subnetworks are evaluated (850), and whether power is stable at the local and remote subnetworks is determined (860), using the local power data and the remote power data.
摘要翻译：使用从网络中的若干位置（例如，从智能电子设备系统（lED））获取的测量信息来检测岛屿事件。在岛屿检测的示例方法中，评估远程子网中局部相位角和远端相位角之间的相位角差（850），以及使用本地功率数据确定本地和远程子网上的功率是否稳定（860）和远程电源数据。

3. 发明申请

WO2014093802A2 METHOD AND COMPONENT FOR VOLTAGE INSTABILITY PROTECTION IN AN ELECTRIC POWER SYSTEM 审中-公开
标题翻译：电力系统中电压不稳定性保护的方法和组件
公开(公告)号：WO2014093802A2
公开(公告)日：2014-06-19
申请号：PCT/US2013/074975
申请日：2013-12-13
申请人： ABB RESEARCH LTD. , ZARGHAMI, Mahyar , NUQUI, Reynaldo
发明人： ZARGHAMI, Mahyar , NUQUI, Reynaldo
IPC分类号： H02J3/00
CPC分类号： H02H3/24 , G01R19/2513 , H02J3/06 , H02J3/24 , Y02E60/728 , Y04S10/265
摘要： Voltage instability protection for an electric power system is implemented by determining a change in power injected into a region of interest within the electric power system based on synchronized power measurements from different power injection points of the region of interest (200), and by determining a change in power absorbed by one or more loads in the region of interest based on synchronized power measurements from different load points of the region of interest (210). A change in power loss for the region of interest is determined based on the difference between the change in power injected into the region of interest and the change in power absorbed by the region of interest (220). A voltage instability condition is indicated when the change in power loss for the region of interest approximates the change in power injected into the region of interest (230).
摘要翻译：电力系统的电压不稳定性保护通过基于来自感兴趣区域（200）的不同功率注入点的同步功率测量确定在电力系统内注入到感兴趣区域中的功率变化来实现，并且通过确定基于来自感兴趣区域（210）的不同负载点的同步功率测量，在感兴趣区域中由一个或多个负载吸收的功率变化。基于注入到感兴趣区域的功率变化与感兴趣区域吸收的功率变化之间的差异来确定感兴趣区域的功率损耗的变化（220）。当感兴趣区域的功率损耗的变化近似于注入感兴趣区域的功率变化时，指示电压不稳定性条件（230）。

4. 发明申请

WO2011157305A1 FAULT PROTECTION OF HVDC TRANSMISSION LINES 审中-公开
标题翻译：高压直流输电线路的故障保护
公开(公告)号：WO2011157305A1
公开(公告)日：2011-12-22
申请号：PCT/EP2010/063372
申请日：2010-09-13
申请人： ABB RESEARCH LTD , BERGGREN, Bertil , WANG, Jianping , PAN, Juiping , SRIVASTAVA, Kailash , LINDEN, Kerstin , NUQUI, Reynaldo
发明人： BERGGREN, Bertil , WANG, Jianping , PAN, Juiping , SRIVASTAVA, Kailash , LINDEN, Kerstin , NUQUI, Reynaldo
IPC分类号： H02H7/26 , H02H3/38 , H02H3/42 , H02H3/44
CPC分类号： H02H3/42 , H02H3/38 , H02H3/445 , H02H7/268
摘要： A protection system (200) for high voltage direct current, HVDC, transmission lines is provided. The protection system comprises a direct current, DC, bus (201), means (202) for connecting an HVDC transmission line to the bus, at least one DC circuit breaker (203, 204) arranged for disconnecting the transmission line from the bus upon reception of a trip signal, current (211) and voltage sensors (212), an inductor (213) arranged such that the current through the transmission line passes the inductor, and a fault detection unit (220). The fault detection unit is arranged for assessing, on the basis of current and/or voltage measurements, whether a fault exists on the transmission line, and sending, if a fault is detected on the transmission line, a trip signal to the circuit breaker. The additional inductance limits the rise in fault current and facilitates a selective fault detection. Further, a method of fault protection for an HVDC transmission line is provided.
摘要翻译：提供用于高压直流，HVDC，传输线路的保护系统（200）。保护系统包括直流DC总线（201），用于将HVDC传输线连接到总线的装置（202），至少一个直流断路器（203,204），其布置成用于将传输线与总线断开接收跳闸信号，电流（211）和电压传感器（212），布置成使得通过传输线的电流通过电感器的电感器（213）和故障检测单元（220）。该故障检测单元被设置为基于当前和/或电压测量来评估传输线路上是否存在故障，并且如果在传输线路上检测到故障则发送到断路器的跳闸信号。附加电感限制故障电流的上升，并有助于选择性故障检测。此外，还提供了用于HVDC传输线的故障保护方法。

5. 发明申请

WO2005091458A1 DIGITAL SIGNAL PROCESSOR IMPLEMENTATION OF HIGH IMPEDANCE FAULT ALGORITHMS 审中-公开
标题翻译：数字信号处理器实现高阻抗故障算法
公开(公告)号：WO2005091458A1
公开(公告)日：2005-09-29
申请号：PCT/US2005/008490
申请日：2005-03-15
申请人： ABB TECHNOLOGY AG , ABB RESEARCH LTD. , PETERSON, John , KUNSMAN, Steven A. , HAJ-MAHARSI, Mohamed Y , NUQUI, Reynaldo , STOUPIS, James
发明人： PETERSON, John , KUNSMAN, Steven A. , HAJ-MAHARSI, Mohamed Y , NUQUI, Reynaldo , STOUPIS, James
IPC分类号： H02H1/00
CPC分类号： H02H1/0015 , H02H1/0053 , H02H1/0092
摘要： A digital signal processor implementation of three algorithms used to detect high impedance faults. The algorithms can be wavelet based, higher order statistics based and neural network based. The algorithms are modified to process one second of data instead of ten seconds of data and a double buffered acquisition is connected to the output of the algorithms.
摘要翻译：一种用于检测高阻抗故障的三种算法的数字信号处理器实现。算法可以基于小波，基于高阶统计和神经网络。这些算法被修改为处理数据的一秒而不是十秒的数据，并且双缓冲采集被连接到算法的输出。

6. 发明申请

WO2014056144A1 METHODS, SYSTEMS, AND COMPUTER READABLE MEDIA FOR ADAPTIVE OUT OF STEP PROTECTION FOR POWER GENERATORS WITH LOAD RESYNCHRONIZATION CAPABILITY 审中-公开
标题翻译：具有负载可再生能力的发电机步进保护的方法，系统和计算机可读介质
公开(公告)号：WO2014056144A1
公开(公告)日：2014-04-17
申请号：PCT/CN2012/082627
申请日：2012-10-09
申请人： ABB RESEARCH LTD. , NUQUI, Reynaldo , CHEN, Yao , PAN, Jiuping
发明人： NUQUI, Reynaldo , CHEN, Yao , PAN, Jiuping
IPC分类号： H02P9/00
CPC分类号： H02J3/40 , H02H7/067 , H02P1/029 , H02P9/006 , H02P9/10 , Y10T307/729 , Y10T307/735
摘要： Methods, systems, and computer readable media for adaptive out of step protection for power generators with load resynchronization capability are disclosed. According to one method, when a fault condition occurs in a load being supplied by a power generator, a number of pole slips expected to occur in the generator due to the fault before resynchronization is estimated. It is determined whether the estimated number of pole slips exceeds a threshold. An offline or online status of the generator is controlled based on the determination as to whether the estimated number of pole slips exceeds the threshold.
摘要翻译：公开了用于具有负载再同步能力的发电机的自适应失步保护的方法，系统和计算机可读介质。根据一种方法，当在由发电机提供的负载中发生故障状况时，估计由于再同步之前的故障而在发电机中发生的极滑数。确定估计的极滑数是否超过阈值。基于关于所估计的极滑数是否超过阈值的确定来控制发电机的离线或在线状态。

7. 发明申请

WO2012044369A1 COORDINATED CONTROL OF MULTI-TERMINAL HVDC SYSTEMS 审中-公开
标题翻译：多端HVDC系统的协调控制
公开(公告)号：WO2012044369A1
公开(公告)日：2012-04-05
申请号：PCT/US2011/032301
申请日：2011-04-13
申请人： ABB RESEARCH LTD. , NUQUI, Reynaldo , PAN, Jiuping , SRIVASTAVA, Kailash , JONSSON, Tomas
发明人： NUQUI, Reynaldo , PAN, Jiuping , SRIVASTAVA, Kailash , JONSSON, Tomas
IPC分类号： H02J3/36
CPC分类号： H02J3/36 , G06F1/26 , H02H7/125 , H02J13/0062 , Y02E60/60 , Y02E60/7838 , Y04S40/124
摘要： Multi-terminal HVDC systems and control methods therefore are disclosed. Methods for controlling multi-terminal HVDC systems having a plurality of converter stations may include receiving a plurality of measurements from a plurality of measurement units disposed on the HVDC system, identifying from the measurements a disruption within the HVDC system, monitoring the measurements to identify a steady-state disrupted condition for the HVDC system, calculating a new set point for at least one of the plurality of converter stations, which new set point may be based on the steady-state disrupted condition and the measurements, and transmitting the new set point to the at least one of the plurality of converter stations. In some examples, the HVDC systems may include an HVDC grid interconnecting the plurality of converter stations and a controller communicatively linked to the plurality of measurement units and the plurality of converter stations.
摘要翻译：因此，公开了多端子HVDC系统和控制方法。用于控制具有多个转换器站的多端子HVDC系统的方法可以包括从设置在HVDC系统上的多个测量单元接收多个测量值，从测量中识别HVDC系统内的中断，监视测量结果以识别用于HVDC系统的稳态中断条件，为多个转换站中的至少一个转换站计算新的设定点，该新的设定点可以基于稳态中断条件和测量，并且传输新的设定点到所述多个转换站中的至少一个。在一些示例中，HVDC系统可以包括互连多个转换器站的HVDC网格和通信地链接到多个测量单元和多个转换器站的控制器。

8. 发明申请

WO2011157306A1 BREAKER FAILURE PROTECTION OF HVDC CIRCUIT BREAKERS 审中-公开
标题翻译：断路器故障保护高压直流断路器
公开(公告)号：WO2011157306A1
公开(公告)日：2011-12-22
申请号：PCT/EP2010/063377
申请日：2010-09-13
申请人： ABB RESEARCH LTD , BERGGREN, Bertil , WANG, Jianping , PAN, Juiping , LINDEN, Kerstin , NUQUI, Reynaldo
发明人： BERGGREN, Bertil , WANG, Jianping , PAN, Juiping , LINDEN, Kerstin , NUQUI, Reynaldo
IPC分类号： H02H7/26 , H02H3/44 , H02H7/30
CPC分类号： H02H7/268 , H02H3/044 , H02H3/05 , H02H3/445 , H02H7/222 , H02H7/30
摘要： A breaker failure protection system (100) for a high voltage direct current, HVDC, circuit breaker (103) is provided. The circuit breaker is arranged for interrupting a DC circuit (101, 102) upon reception of a trip signal (108). The protection system comprises a current sensor (104), at least one inductor (105, 106), and a breaker failure detection unit (107). The current sensor is arranged for measuring a current I (t) through the DC circuit. The at least one inductor is connected in series with the DC circuit. The breaker failure detection unit is arranged for assessing, whether the circuit breaker has failed, and sending, if the circuit breaker has failed, a trip signal (109) to an adjacent circuit breaker. The assessment is based on the measured current. The stability of HVDC grids may be improved by sending, in case of a breaker failure, a trip signal to adjacent circuit breakers. Further, a method of breaker failure protection for an HVDC circuit breaker is provided.
摘要翻译：提供了一种用于高压直流，HVDC，断路器（103）的断路器故障保护系统（100）。断路器被布置成在接收到跳闸信号（108）时中断DC电路（101,102）。保护系统包括电流传感器（104），至少一个电感器（105,106）和断路器故障检测单元（107）。电流传感器用于测量通过直流电路的电流I（t）。至少一个电感器与DC电路串联连接。断路器故障检测单元被布置用于评估断路器是否发生故障，并且如果断路器发生故障，则发送到相邻断路器的跳闸信号（109）。评估是基于测量的电流。在断路器故障的情况下，通过发送到相邻断路器的跳闸信号，可以提高HVDC电网的稳定性。此外，还提供了一种用于HVDC断路器的断路器故障保护方法。

9. 发明申请

WO2019209796A1 TECHNOLOGIES FOR DETECTING CYBER-ATTACKS AGAINST ELECTRICAL DISTRIBUTION DEVICES 审中-公开
公开(公告)号：WO2019209796A1
公开(公告)日：2019-10-31
申请号：PCT/US2019/028668
申请日：2019-04-23
申请人： ABB SCHWEIZ AG , NUQUI, Reynaldo , HONG, Junho , COATS, David
发明人： NUQUI, Reynaldo , HONG, Junho , COATS, David
IPC分类号： H04L29/06 , G06F21/55 , G05B23/02
摘要： Technologies for detecting cyber-attacks against electrical distribution devices include a controller. The controller includes circuitry to determine a first measured value of a first operational parameter of a transformer based upon one or more signals received from one or more sensors of the transformer. The circuitry is also to determine a second measured value of a second operational parameter of the transformer based upon one or more signals received from the one or more sensors of the transformer, calculate a first expected value of the first operational parameter based on the second measured value of the second operational parameter and a model of the transformer that relates the first and second operational parameters, compare the first measured value of the first operational parameter to the first expected value of the first operational parameter, and identify when a difference between the first measured value and the first expected value exceeds a first threshold.

10. 发明申请

WO2013064176A1 TRAVELLING-WAVE BASED FAULT PROTECTION OF HIGH-VOLTAGE TRANSMISSION LINES 审中-公开
标题翻译：基于行驶波形的高压变速器线路故障保护
公开(公告)号：WO2013064176A1
公开(公告)日：2013-05-10
申请号：PCT/EP2011/069187
申请日：2011-11-01
申请人： ABB TECHNOLOGY AG , WANG, Jianping , PAN, Jiuping , NUQUI, Reynaldo
发明人： WANG, Jianping , PAN, Jiuping , NUQUI, Reynaldo
IPC分类号： H02H7/26 , G01R31/08
CPC分类号： G01R31/088 , G01R31/085 , H02H7/265
摘要： An improved method of fault detection in a high-voltage direct current (HVDC) power transmission line (101 ) is provided. The fault detection is based on fault-induced travelling waves. The method comprises estimating an amplitude of fault-induced travelling waves at the fault location (1 07), and calculating a fault resistance (Rf) based on the estimated amplitude, an estimated pre-fault voltage at the fault location, and a surge impedance of the transmission line. The estimated fault amplitude and the estimated pre-fault voltage are calculated from voltage measurements performed at both ends (102, 1 03) of the transmission line. Further, a fault detection device (1 06) is provided.
摘要翻译：提供了一种改进的高压直流（HVDC）输电线路（101）故障检测方法。故障检测基于故障引起的行波。该方法包括估计故障位置处的故障诱导行波的振幅（1 07），以及基于估计的振幅，故障位置处的估计故障前电压和浪涌阻抗来计算故障电阻（Rf）的传输线。根据在传输线的两端（102,1 03）执行的电压测量，计算出估计的故障振幅和估计的故障前电压。此外，提供故障检测装置（106）。

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