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1. 发明申请

WO2003055028A1 DETERMINING AN OPERATIONAL LIMIT OF A POWER TRANSMISSION LINE 审中-公开
标题翻译：确定电力传输线的运行限制
公开(公告)号：WO2003055028A1
公开(公告)日：2003-07-03
申请号：PCT/CH2002/000682
申请日：2002-12-11
申请人： ABB SCHWEIZ AG , ZIMA, Marek , REHTANZ, Christian , LARSSON, Mats
发明人： ZIMA, Marek , REHTANZ, Christian , LARSSON, Mats
IPC分类号： H02G7/20
CPC分类号： H02H7/226 , H02H3/40 , H02H6/005 , Y10T307/735
摘要： In a method, computer program and system for determining an operational limit of a power transmission line, time-stamped current phasor information and voltage phasor information for a first end and a second end of the line are determined, an ohmic resistance of the line is computed from the phasor information, and an average line temperature is computed from the ohmic resistance. This allows to determine the average line temperature without dedicated temperature sensors. The average line temperature represents the actual average temperature and is largely independent of assumptions regarding line parameters.
摘要翻译：在一种方法中，确定用于确定电力传输线的操作限制的计算机程序和系统，用于线路的第一端和第二端的时间戳的电流相量信息和电压相量信息，线的欧姆电阻为根据相量信息计算，并且根据欧姆电阻计算平均线路温度。这可以确定没有专用温度传感器的平均线路温度。平均线路温度表示实际平均温度，并且在很大程度上独立于有关线路参数的假设。

2. 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。

3. 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。

4. 发明申请

WO2007053965A1 METHOD AND APPARATUS FOR VERIFYING THE ACCURACY OF STATE ESTIMATION CALCULATIONS 审中-公开
标题翻译：用于验证状态估计计算精度的方法和装置
公开(公告)号：WO2007053965A1
公开(公告)日：2007-05-18
申请号：PCT/CH2006/000567
申请日：2006-10-12
申请人： ABB TECHNOLOGY AG , REHTANZ, Christian , SURANYI, Andreas , BERTSCH, Joachim , ZIMA, Marek
发明人： REHTANZ, Christian , SURANYI, Andreas , BERTSCH, Joachim , ZIMA, Marek
IPC分类号： G01R11/00 , H02J3/24
CPC分类号： H02J3/24 , Y02E60/728 , Y04S10/265
摘要： The present invention is concerned with the reduction of an operational security margin of a power system (1) without jeopardizing the safety of the power system or incurring heavy investments. According to the invention, a check for basic accuracy or correctness of a conventional State Estimation (SE) procedure allows to increase a level of confidence in the results of the procedure. To this end, an accuracy of the estimated states is verified by comparing the latter with the results (y, y´) of independent phasor measurements performed at selected locations (B, D) of the power system. Unless a discrepancy is reported by this comparison, the results of the SE can be assumed to be sufficiently accurate, and any conservative or additional security margin intended to compensate for SE uncertainty can be relaxed. Hence, established trustworthiness in the estimated states allows increasing the transmitted power where the estimated states do indicate such a possibility, i.e. in particular in fringe areas and/or transmission corridors between countries, and especially under stressed network conditions.
摘要翻译：本发明涉及降低电力系统（1）的操作安全裕度，而不会危及电力系统的安全或引起大量投资。根据本发明，对常规状态估计（SE）过程的基本准确性或正确性的检查允许增加过程结果的置信度。为此，通过将后者与在电力系统的选定位置（B，D）处执行的独立相量测量的结果（y，y'）进行比较来验证估计状态的精度。除非通过比较报告出现差异，否则SE的结果可以被认为是足够准确的，并且可以放宽旨在补偿SE不确定性的任何保守或额外的安全余量。因此，在估计状态下建立的可信赖性允许增加发射功率，其中估计状态确实表明这种可能性，即特别是在国家之间的边缘区域和/或传输走廊，特别是在强调的网络条件下。

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