专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2007098632A2 CONVERTER CONTROL UNIT 审中-公开
标题翻译：转换器控制单元
公开(公告)号：WO2007098632A2
公开(公告)日：2007-09-07
申请号：PCT/CH2007/000106
申请日：2007-03-02
申请人： ABB RESEARCH LTD , KORBA, Petr , WIESER, Rudolf , PONNALURI, Srinivas , LARSSON, Mats , OUDALOV, Alexander , TABORDA, Jose , STEIMER, Peter
发明人： KORBA, Petr , WIESER, Rudolf , PONNALURI, Srinivas , LARSSON, Mats , OUDALOV, Alexander , 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：本发明涉及用于抵消电力系统（1）中的振荡的转换器控制单元或电力系统稳定单元（1），其被配备并用于提供和处理用于系统范围监视，保护，控制和计量的信息。它包括用于同步（例如通过GPS或另一绝对/全局时间参考）电压和/或电流采样的装置（30），用于下采样的装置，以便减少采样数，以及用于计算相量的装置（35）即电压和/或电流的时间戳幅度和相位角。

2. 发明申请

WO2008040713A1 DETERMINATION AND USE OF POWER SYSTEM SENSITIVITIES FOR POWER FLOW CONTROL 审中-公开
标题翻译：电力系统敏感性的动力流量控制的确定和使用
公开(公告)号：WO2008040713A1
公开(公告)日：2008-04-10
申请号：PCT/EP2007/060412
申请日：2007-10-02
申请人： ABB Research Ltd , BERGGREN, Bertil , LARSSON, Mats , BENGTSSON, Tord , KORBA, Petr , OUDALOV, Alexander
发明人： BERGGREN, Bertil , LARSSON, Mats , BENGTSSON, Tord , KORBA, Petr , OUDALOV, Alexander
IPC分类号： H02J3/24
CPC分类号： H02J3/24 , H02J3/005 , Y02E60/728 , Y04S10/265
摘要： The present invention is concerned with the computation of power system sensitivities from power flow parameters and control parameters of a Power Flow Control Device (PFC). To this end, control parameter variations are applied to or generated by a PFC (20), and comprise variations in a control input u, a control effort e (injected series voltage, inserted series reactance), or a control effect q (power flow, active power transfer, phase-shift, current). A power flow response measuring unit (40) measures a variation of a power flow response such as current, active or apparent power, in a way sufficiently synchronized with the control parameter variation to allow establishing an unambiguous causal relationship or correspondence in the form of a power system sensitivity. The latter may be on-line adapted to continuously reflect an updated aspect of the power system behaviour, and thus enable an improved, fast and reliable power flow control in power systems comprising a meshed power network with two parallel flow paths or corridors connecting two areas or sub-systems.
摘要翻译：本发明涉及从功率流量参数和功率流量控制装置（PFC）的控制参数的功率系统灵敏度的计算。为此，控制参数变化应用于PFC（20）或由PFC（20）产生，并且包括控制输入u，控制力e（注入的串联电压，插入的串联电抗）或控制效应q（功率流），有功功率传输，相移，电流）。功率流响应测量单元（40）以与控制参数变化充分同步的方式测量功率流响应（例如电流，有功或视在功率）的变化，以允许建立明确的因果关系或以电力系统灵敏度。后者可以在线适应以连续反映电力系统行为的更新方面，并且因此能够在电力系统中实现改进的，快速和可靠的功率流控制，其包括具有两个平行流动路径的网状电力网络或连接两个区域的走廊或子系统。

3. 发明申请

WO2006131017A3 DAMPING ELECTROMECHANICAL OSCILLATIONS IN POWER SYSTEMS 审中-公开
公开(公告)号：WO2006131017A3
公开(公告)日：2006-12-14
申请号：PCT/CH2006/000308
申请日：2006-06-08
申请人： ABB RESEARCH LTD , KORBA, Petr , OUDALOV, Alexander , LARSSON, Mats , LINDBERG, Johan, A. , JOHANSSON, Stefan, G.
发明人： KORBA, Petr , OUDALOV, Alexander , LARSSON, Mats , LINDBERG, Johan, A. , JOHANSSON, Stefan, G.
IPC分类号： H02J3/24 , H02J3/06
摘要： The present invention is concerned with the combined voltage or power flow control and damping of electromechanical oscillations in an electric power system (2) by Flexible AC Transmission System (FACTS) devices (20) or High Voltage DC (HVDC) transmission devices. 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.

4. 发明申请

WO2007051334A1 INITIALIZING AN ESTIMATION OF DYNAMIC MODEL PARAMETERS 审中-公开
标题翻译：初步估计动态模型参数
公开(公告)号：WO2007051334A1
公开(公告)日：2007-05-10
申请号：PCT/CH2006/000608
申请日：2006-10-31
申请人： ABB RESEARCH LTD , KORBA, Petr , ZIMA, Marek , LARSSON, Mats
发明人： KORBA, Petr , ZIMA, Marek , LARSSON, Mats
IPC分类号： G05B17/02 , H02J3/24
CPC分类号： H02J3/24 , G05B17/02
摘要： The present invention is concerned with the monitoring of electromechanical oscillations in electric power systems, and their identification by an adaptive algorithm based on a repeatedly measured and evaluated signal as detailed in EP-A 1 489 714. In order for an estimation of parameters of a model of the power system to reasonably converge, proper initialisation of the recursive calculation is required, including the definition of tuning parameters constraining the model and the calculation. Initialisation for a second signal to be exploited can then be simplified by copying the set of tuning parameters tuned previously for a different signal. A conditioning gain multiplying the second signal establishes compatibility between the different signals, and a signal pre-filter in turn discards contributions beyond a frequency band comprising typical electromagnetic oscillations.
摘要翻译：本发明涉及在电力系统中的机电振荡的监测及其基于如EP-A 1 489 714中详述的重复测量和评估的信号的自适应算法的识别。为了估计一个电力系统模型合理收敛，需要适当的递归计算初始化，包括限制模型和计算的调整参数的定义。然后可以通过复制先前为不同信号调谐的一组调谐参数来简化要利用的第二信号的初始化。与第二信号相乘的调节增益建立不同信号之间的兼容性，并且信号预滤波器进而丢弃超出包括典型电磁振荡的频带的贡献。

5. 发明申请

WO2008116929A3 DAMPING MULTIPLE MODES OF ELECTROMAGNETIC OSCILLATIONS IN POWER DISTRIBUTION SYSTEMS 审中-公开
标题翻译：配电系统中电磁振荡的阻尼多重模式
公开(公告)号：WO2008116929A3
公开(公告)日：2008-10-02
申请号：PCT/EP2008/053713
申请日：2008-03-28
申请人： ABB RESEARCH LTD , KORBA, Petr , LARSSON, Mats
发明人： KORBA, Petr , LARSSON, Mats
IPC分类号： H02J3/24
摘要： The present invention is concerned with the damping multimode electromagnetic oscillations in electric power systems which interconnect a plurality of generators and consumers. A controller for damping such oscillations having a phasor measurement unit (PMU) and a power oscillation damper (POD) controller is described. Each oscillating mode signal is damped and then superposed in order to derive a control signal. A feedback controller is used to feedback the control signal to a power flow control device in the power system.
摘要翻译：本发明涉及互连多个发电机和消耗器的电力系统中的阻尼多模电磁振荡。描述了用于衰减具有相量测量单元（PMU）和功率振荡阻尼器（POD）控制器的这种振荡的控制器。每个振荡模式信号被衰减然后叠加以得出控制信号。反馈控制器用于将控制信号反馈给电力系统中的电力潮流控制设备。

6. 发明申请

WO2008017581A1 PARAMETER ESTIMATION FOR A THERMAL MODEL OF A POWER LINE 审中-公开
标题翻译：电力线热模型的参数估计
公开(公告)号：WO2008017581A1
公开(公告)日：2008-02-14
申请号：PCT/EP2007/057548
申请日：2007-07-23
申请人： ABB Research Ltd , ZIMA, Marek , KORBA, Petr , LEIRBUKT, Albert , LARSSON, Mats
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T1，电流I的电力线的电量，电力线的电力流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，并且评估量的收集值，以便在电力线的运行期间更新热模型的模型参数。在本发明的优选实施例中，通过两个相量测量单元（PMU）11,11'来确定表示整条线路的平均温度，该相量测量单元从电源线的两端提供同步的相量值。根据相量值计算电力线的欧姆电阻，从而可以导出平均线路温度。

7. 发明申请

WO2010063577A1 METHOD AND SYSTEM FOR POWERLINE LENGTH MEASUREMENT 审中-公开
标题翻译：电力线长度测量方法与系统
公开(公告)号：WO2010063577A1
公开(公告)日：2010-06-10
申请号：PCT/EP2009/065375
申请日：2009-11-18
申请人： ABB RESEARCH LTD , DZUNG, Dacfey , LARSSON, Mats
发明人： DZUNG, Dacfey , LARSSON, Mats
IPC分类号： G01B7/02 , G01R31/02 , H04B3/46
CPC分类号： G01B7/02 , G01R31/021
摘要： The present invention concerns a method for determining a length quantity of a power transmission line, wherein the power transmission line connects a first location with a second location, wherein the method comprises: providing a first signal having a first carrier frequency (f 1 ) at the first location; transmitting the first signal from the first location to a second location via the power transmission line; providing a second signal having a second frequency (f 1 ') at the second location; measuring a first phase difference between the first signal and the second signal at the second location; calculating the length quantity from the measured phase difference. Further, the invention concerns a system for determining the length of a power transmission line (130) between a first location (110) and a second location (120), wherein a second receiver at the second location is adapted to receive a first signal having a first carrier frequency (f 1 ) from the first location, wherein the system comprises an frequency generator (122) for creating a second signal having a second frequency (f 1 ') at the second location; wherein the receiver further comprises a phase detection device (126) adapted for detecting a first phase difference between the second frequency and the first carrier frequency at the second location.
摘要翻译：本发明涉及一种用于确定电力传输线的长度量的方法，其中所述电力传输线将第一位置与第二位置连接，其中所述方法包括：提供在所述第一位置处具有第一载波频率（f1）的第一信号第一个位置; 经由输电线路将第一信号从第一位置发送到第二位置; 在第二位置处提供具有第二频率（f1'）的第二信号; 测量第二位置处的第一信号和第二信号之间的第一相位差; 从测量的相位差计算长度数量。此外，本发明涉及一种用于确定第一位置（110）和第二位置（120）之间的电力传输线（130）的长度的系统，其中第二位置处的第二接收机适于接收具有来自所述第一位置的第一载波频率（f1），其中所述系统包括用于在所述第二位置处产生具有第二频率（f1'）的第二信号的频率发生器（122）其中所述接收机还包括适于在所述第二位置处检测所述第二频率与所述第一载波频率之间的第一相位差的相位检测装置（126）。

8. 发明申请

WO2009112444A1 DISTRIBUTION CONTROLLER AND A METHOD FOR IDENTIFYING AN ORPHAN NETWORK AND TRANSMITTING A STANDARDIZED DESCRIPTION OF THE ORPHAN NETWORK TO ANOTHER DISTRIBUTION CONTROLLER 审中-公开
标题翻译：分布式控制器和一种用于识别ORPN网络的方法，并将ORPHAN网络的标准化描述发送给另一个分发控制器
公开(公告)号：WO2009112444A1
公开(公告)日：2009-09-17
申请号：PCT/EP2009/052700
申请日：2009-03-09
申请人： ABB RESEARCH LTD , LARSSON, Mats , FREI, Christian , TIMBUS, Adrian , YUEN, Cherry
发明人： LARSSON, Mats , FREI, Christian , TIMBUS, Adrian , YUEN, Cherry
IPC分类号： H02J13/00
CPC分类号： H02J3/005 , H02J13/0013 , Y02E60/724 , Y02E60/7807 , Y04S10/18 , Y04S40/12
摘要： The present invention is concerned with a distribution controller (19) for controlling a distribution of electrical power in an assigned first power distribution region (1). The controller is adapted to be connected to process devices (21) which in turn interact with primary devices (5, 7, 9, 11, 13) of the assigned first region. The distribution controller is provided with a standardized, machine-readable network description of the first region and comprises means to identify, following a network reconfiguration, the extent of an orphan network section (23) that is no longer connected to the first region. The distribution controller is further adapted to transmit a description of the orphan network section to a second distribution controller (19') controlling a second or neighbouring power distribution region (1') to which the orphan section has been connected as a consequence of the network reconfiguration. Due to this capability of transmitting descriptions of the network section changing hands, there is no need to keep and update a description of the entire network in each controller of the power distribution system.
摘要翻译：本发明涉及用于控制分配的第一配电区域（1）中的电力分配的配电控制器（19）。控制器适于连接到处理设备（21），过程设备又与所分配的第一区域的主设备（5,7,9,11,13）进行交互。分配控制器被提供有第一区域的标准化的机器可读网络描述，并且包括用于在网络重新配置之后识别不再连接到第一区域的孤立网络部分（23）的范围的装置。分配控制器还适于将孤儿网络部分的描述发送到控制作为网络的结果而连接了孤儿部分的第二或相邻功率分配区域（1'）的第二分配控制器（19'）重新配置。由于能够发送网络部分切换手的描述的能力，不需要在配电系统的每个控制器中保持和更新整个网络的描述。

9. 发明申请

WO2009019067A1 ESTIMATING A TIME OFFSET BETWEEN STATIONARY CLOCKS 审中-公开
标题翻译：估计静态时钟之间的时间偏差
公开(公告)号：WO2009019067A1
公开(公告)日：2009-02-12
申请号：PCT/EP2008/057931
申请日：2008-06-23
申请人： ABB RESEARCH Ltd , DZUNG, Dacfey , LARSSON, Mats
发明人： DZUNG, Dacfey , LARSSON, Mats
IPC分类号： H02J3/00
CPC分类号： H04J3/0682 , H02J13/0017 , H04J3/0644 , Y02E60/7807 , Y04S10/527 , Y04S40/12
摘要： The present invention is concerned with an improved time synchronisation of two stationary clocks. A global time signal from a global time reference or common time source is used to calculate a common view based clock offset between two stationary clocks. In parallel, a network based clock offset between the two clocks is calculated based on messages exchanged over a communication network interconnecting the two clocks and without reverting to the global time reference. The two most recent values of the common view and network based clock offsets are then combined or superposed in a seamless or hitless way to produce a final time offset estimate. The combination of the independently calculated common view and network based clock offsets is a weighted average of the two values, involving respective weights based on quality estimates of the latter. Preferably, the time synchronization schemes based on the Global Positioning System (GPS) and a wide area communication network are combined in order to synchronize the stationary clocks of the Phasor Measurement Units (PMUs) of a Wide Area Monitoring System to a central server clock at the Network Control Center (NCC) of the system.
摘要翻译：本发明涉及两个固定时钟的改进的时间同步。来自全局时间参考或公共时间源的全局时间信号用于计算两个固定时钟之间的基于公共视图的时钟偏移。并行地，基于通过互连两个时钟的通信网络交换的消息来计算两个时钟之间的基于网络的时钟偏移，并且没有恢复到全局时间基准。然后将共同视图和基于网络的时钟偏移的两个最新值以无缝或无限制的方式组合或重叠以产生最终时间偏移估计。独立计算的共同视图和基于网络的时钟偏移的组合是两个值的加权平均值，涉及基于后者的质量估计的相应权重。优选地，组合基于全球定位系统（GPS）和广域通信网络的时间同步方案，以便将广域监控系统的相量测量单元（PMU）的固定时钟与中央服务器时钟同步系统的网络控制中心（NCC）。

10. 发明申请

WO2008073250A3 ESTIMATION OF REAL-TIME POWER SYSTEM QUANITIES USING TIME-SYNCHRONIZED MEASUREMENTS 审中-公开
公开(公告)号：WO2008073250A3
公开(公告)日：2008-06-19
申请号：PCT/US2007/024893
申请日：2007-12-05
申请人： ABB RESEARCH LTD. , SCHOLTZ, Ernst , NUQUI, Reynaldo, F. , FINNEY, John, D. , LARSSON, Mats , SUBRAMANIAN, Mani , LIN, Gordon
发明人： SCHOLTZ, Ernst , NUQUI, Reynaldo, F. , FINNEY, John, D. , LARSSON, Mats , SUBRAMANIAN, Mani , LIN, Gordon
IPC分类号： H02J3/00
摘要： Phasor measurement units (108) provide phasor data from various locations (102) in an electrical power system. The phasor data is referenced to a common timing signal. Non-phasor measurement data is also obtained at various locations in the power system. A phasor assisted state estimator (120) uses the phasor data and the non-phasor data to determine the power system state.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式