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1. 发明公开

EP2325968A1 Tuning a power oscillation damping unit 审中-公开
标题翻译： Abstimmung einer Einheit zurDämpfungvon Leistungsschwingungen
公开(公告)号：EP2325968A1
公开(公告)日：2011-05-25
申请号：EP09176283.1
申请日：2009-11-18
申请人： ABB Research Ltd.
发明人： Korba, Petr , Berggren, Bertil , Majumder, Rajat , Ray, Swakshar
IPC分类号： H02J3/24
CPC分类号： H02J3/24
摘要： The invention is related to a method, power control device and computer program product for tuning a power oscillation damping unit (22; 26) in a power transmission system. The power control device (10) includes a probing signal generating element (42) configured to generate at least one probing signal (PS) and send the probing signal into the power transmission system, a data extracting element (36) configured to receive probing signal responses (PSR1, PSR2, PSRn) from measurement units (12, 14, 16) placed in the power transmission system and a system parameter determining element (40) configured to determine system model parameters (SP1; SP2) of the power transmission system based on the probing signal and the probing signal responses and tune the power oscillation damping unit using the system model parameters.
摘要翻译：本发明涉及一种用于调谐电力传输系统中的功率振荡阻尼单元（22; 26）的方法，功率控制装置和计算机程序产品。功率控制装置（10）包括探测信号产生元件（42），被配置为产生至少一个探测信号（PS）并将探测信号发送到电力传输系统中;数据提取元件（36），被配置为接收探测信号放置在电力传输系统中的来自测量单元（12,14,16）的响应（PSR1，PSR2，PSRn）和系统参数确定元件（40）被配置为确定基于电力传输系统的系统模型参数（SP1; SP2）探测信号和探测信号响应，并使用系统模型参数调谐功率振荡阻尼单元。

2. 发明公开

EP2124311A1 Time delay compensation in power system control 审中-公开
标题翻译： Zeitverzögerungsausgleicheiner Energieversorgungssystemsteuerung
公开(公告)号：EP2124311A1
公开(公告)日：2009-11-25
申请号：EP08156785.1
申请日：2008-05-23
申请人： ABB Research LTD
发明人： Korba, Petr , Segundo, Rafael , Berggren, Bertil , Paice, Andrew , Majumder, Rajat
IPC分类号： H02J3/24
CPC分类号： H02J3/24 , Y02E60/728 , Y04S10/265
摘要： The present invention is concerned with the compensation of time delays in remote feedback signals in power system control. A method is described which comprises converting the time delay into a phase shift and calculating four compensation angles from the phase shift. The optimal compensation angle is determined and applied to the remote feedback signals. A technique of equipping a controller with a global clock is also disclosed.
摘要翻译：本发明涉及电力系统控制中远程反馈信号的时间延迟的补偿。描述了一种方法，其包括将时间延迟转换为相移并从相移计算四个补偿角。确定最佳补偿角并将其应用于远程反馈信号。还公开了将控制器装配到全局时钟的技术。

3. 发明公开

EP1737098A1 Damping electromagnetic oscillations in power system 审中-公开
标题翻译： Einem Leistungsystem的Dämpfungvon elektromagnetischen Schwingungen
公开(公告)号：EP1737098A1
公开(公告)日：2006-12-27
申请号：EP05405408.5
申请日：2005-06-24
申请人： ABB RESEARCH LTD.
发明人： Korba, Petr , Oudalov, Alexander , Larsson, Mats
IPC分类号： H02J3/24
CPC分类号： H02J3/24 , H02J3/06 , H02J3/1814 , Y02E40/18 , Y02E60/728 , Y04S10/265
摘要： The present invention is concerned with the combined voltage or power flow control and damping of electromagnetic oscillations in an electric power system (2) by Flexible AC Transmission System (FACTS) devices (20). To this end, information about a state or operating point of the power system is generated from suitable second system signals (y 2 ) and a control parameter (cp) of a FACTS controller (1) is derived therefrom. The control parameter and a first system signal (y 1 ) are used in the calculation of a control command (u) defining the settings of the FACTS device. Following a change in the state of the power system such as a change in the topology of a transmission network, poorly damped or even unstable oscillations are avoided by appropriate re-tuning of the control parameter of the damping or stabilizing equipment.
摘要翻译：本发明涉及通过柔性交流传输系统（FACTS）装置（20）在电力系统（2）中的电磁振荡的组合电压或功率流控制和阻尼。为此，从合适的第二系统信号（y 2）产生关于电力系统的状态或操作点的信息，并且从其导出FACTS控制器（1）的控制参数（cp）。控制参数和第一系统信号（y 1）用于计算定义FACTS设备的设置的控制命令（u）。随着电力系统状态的改变，例如传输网络拓扑的变化，通过对阻尼或稳定设备的控制参数进行适当的重新调整来避免差阻尼甚至不稳定的振荡。

4. 发明公开

EP1887673A1 Parameter estimation of a thermal model of a power line 审中-公开
标题翻译：参数参数
公开(公告)号：EP1887673A1
公开(公告)日：2008-02-13
申请号：EP06405340.8
申请日：2006-08-11
申请人： ABB RESEARCH LTD.
发明人： Zima, Marek , Korba, Petr , Leirbukt, Albert , Larsson, Mats
IPC分类号： H02J3/00 , H02H6/00
CPC分类号： H02H6/00 , H02H7/226
摘要： A relationship between a temperature T 1 of a power line or power transmission conductor 10, an electrical quantity of the power line such as a current I or power flow P through the power line, as well as meteorological quantities or ambient conditions of the power line such as wind speed W , wind direction, humidity, solar radiation S and ambient temperature T a , is established in the form of a thermal model of the power line. Values of the aforementioned quantities or variables are continuously measured, and the collected values of the quantities are evaluated in order to update model parameters of the thermal model during operation of the power line. In a preferred embodiment of the invention, an average temperature representative of the entire line is determined via two Phasor Measurement Units (PMU) 11, 11' providing synchronized phasor values from two ends of the power line. An ohmic resistance of the power line is computed from the phasor values, from which in turn the average line temperature can be derived.
摘要翻译：电力线或输电导体10的温度T 1，电力线等电力线的电量，电力线的动力流P，以及电力线的气象量或环境条件之间的关系如风速W，风向，湿度，太阳辐射S和环境温度T a，以电力线的热模型的形式建立。连续地测量上述数量或变量的值，并且评估所收集的量的值，以便在电力线的操作期间更新热模型的模型参数。在本发明的一个优选实施例中，通过两个相量测量单元（PMU）11,11'确定表示整条线路的平均温度，从而提供来自电力线两端的同步相量值。根据相量值计算电力线的欧姆电阻，从而可以推导出平均线路温度。

5. 发明公开

EP1489714A1 Detecting electromechanical oscillations in power systems 有权转让
标题翻译： Ermittlung电动机Schwingungen在Stromversorgungssystemen
公开(公告)号：EP1489714A1
公开(公告)日：2004-12-22
申请号：EP03405450.2
申请日：2003-06-21
申请人： ABB RESEARCH LTD.
发明人： Korba, Petr , Larsson, Mats , Rehtanz, Christian
IPC分类号： H02J3/24
CPC分类号： H02J3/24 , Y02E60/728 , Y04S10/265
摘要： The detection of electromechanical oscillations in power systems and the estimation of their parameters (frequency f and damping ξ) is based on a linear time-varying model. The parameters of the linear model are on-line adapted by means of Kalman filtering techniques to approximate the measured signal y (representing the behaviour of the power system) optimally in the sense of a quadratic criterion. The estimated model parameters are then the basis for the calculation of parameters of the oscillations. Adaptive algorithms are based on a recursive calculation of the estimated parameter vector for each time-step based on the new value of the measured signal and the old values of the estimated parameters. As opposed to the collection of data over a time window and then performing the parameter identification at once, any change in the system can thus be detected much faster.
摘要翻译：电力系统中机电振荡的检测及其参数估计（频率f和阻尼xi）基于线性时变模型。线性模型的参数通过卡尔曼滤波技术进行在线调整，以在二次标准的意义上最佳地近似测量信号y（表示电力系统的行为）。估计的模型参数是计算振荡参数的基础。自适应算法基于基于测量信号的新值和估计参数的旧值的每个时间步长的估计参数矢量的递归计算。与通过时间窗口收集数据然后一次执行参数识别相反，因此可以更快地检测系统中的任何变化。

6. 发明公开

EP2299555A1 Fault tolerant damping of electromechanical oscillations in power systems 审中-公开
标题翻译： Stromsystemen的FehlertoleranteDämpfungvon elektromechanischen Schwingungen
公开(公告)号：EP2299555A1
公开(公告)日：2011-03-23
申请号：EP09170800.8
申请日：2009-09-21
申请人： ABB Research Ltd.
发明人： Korba, Petr , Berggren, Bertil , Majumder, Rajat , Ray, Swakshar
IPC分类号： H02J3/24
CPC分类号： H02J3/24 , Y02E60/728 , Y04S10/265
摘要： A fault-tolerant method and system of controlling electromechanical oscillations in a power system. The system of controlling comprises at least one phasor measurement unit (58, 60, 62, 64) obtaining phasor data signals including oscillating mode signals, at least one wide area control system (66) receiving the phasor data signals from the phasor measurement unit, and at least one actuating device (80, 82, 84) for receiving a control signal from the wide area control system. Specifically, the wide area control system performs the fault tolerant control method of the present invention, wherein information about each critical oscillatory mode of an oscillation is extracted from a model, selected residues for each critical oscillatory mode are grouped together, and a partial damping controller is designed for each selected critical oscillatory mode using residues from the same group. A multivariable damping controller is produced and applied to one or more actuating devices in the power system to control electromechanical oscillations.
摘要翻译：一种控制电力系统机电振荡的容错方法和系统。控制系统包括至少一个相量测量单元（58,60,62,64），其获得包括振荡模式信号的相量数据信号，至少一个广域控制系统（66）从相量测量单元接收相量数据信号，以及用于从广域控制系统接收控制信号的至少一个致动装置（80,82,84）。具体地，广域控制系统执行本发明的容错控制方法，其中从模型中提取关于振荡的每个关键振荡模式的信息，对于每个关键振荡模式的选择的残差被分组在一起，并且部分阻尼控制器被设计用于使用来自同一组的残留物的每个选定的关键振荡模式。制造多变量阻尼控制器并将其应用于电力系统中的一个或多个致动装置以控制机电振荡。

7. 发明授权

EP1489714B1 Detecting electromechanical oscillations in power systems 有权转让
标题翻译：在电力系统测定机电振荡
公开(公告)号：EP1489714B1
公开(公告)日：2008-01-02
申请号：EP03405450.2
申请日：2003-06-21
申请人： ABB RESEARCH LTD.
发明人： Korba, Petr , Larsson, Mats , Rehtanz, Christian
IPC分类号： H02J3/24
CPC分类号： H02J3/24 , Y02E60/728 , Y04S10/265

8. 发明公开

EP1830447A1 Converter control unit using time-stamped voltage or current phasors 审中-公开
标题翻译：与使用电压和电流矢量与时间戳Umrichtersteuereinheit
公开(公告)号：EP1830447A1
公开(公告)日：2007-09-05
申请号：EP06405090.9
申请日：2006-03-02
申请人： ABB Research Ltd
发明人： Korba, Petr , Ponnaluri, Srinivas , Oudalov, Alexander , Larsson, Mats , Wieser, Rudolf , Taborda, Jose , Steimer, Peter
IPC分类号： H02J3/24
CPC分类号： H02J3/00 , H02J3/24 , Y02E60/728 , Y04S10/265 , Y10T307/50
摘要： The present invention is concerned with a converter control unit or power system stabilizing unit for counteracting oscillations in electric power systems (1) that is equipped and employed to provide and processes information for system-wide monitoring, protection, control and metering. It comprises means (30) for synchronized (e.g. via GPS or another absolute/global time reference) sampling of voltages and/or currents, means for down-sampling in order to decrease the number of samples, and means (35) for calculating phasors, i.e. time stamped amplitude and phase angle of the voltages and/or currents.
摘要翻译：本发明涉及一种转换器控制单元或电力系统稳定单元，用于在电力系统（1）没有被配备并且被使用来提供和全系统的监控，保护，控制和计量处理信息计数器作用的振荡。它包括装置（30），用于同步的电压和/或电流，系指对下采样（例如，经由GPS或另一绝对/全局时间基准）采样，以降低样品的（35）的数目，以及用于计算相量即时间戳记电压和/或电流的振幅和相位角。

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