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1. 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。

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