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Method and device for detecting island operation of power generation plants

机译:发电厂孤岛运行检测方法及装置

摘要

Method for detecting an isolated operation of power generation plants (5), which are set up for generating electrical energy and coupled to a grid (1) in the feed mode, wherein the power generating plant (5) operates island operation relative to the grid (1), if no energy exchange between Energy generation system (5) and interconnected network (1), comprising the steps: - Recording the time profile of the frequency of the mains voltage, which is present at the connection area of the power generation plant (5) with the interconnected network (1), and - Evaluating the time course of the frequency Mains voltage for detecting an island operation, characterized in that the evaluation of the time course of the frequency of the mains voltage, an analysis of the statistical properties of the noise component of the time profile of the frequency of the mains voltage and the detection of island operation based on recognized in the analysis statistical identification features n includes.
机译:用于检测发电站(5)的隔离运行的方法,所述发电站(5)被设置用于产生电能并且在馈电模式下耦合到电网(1),其中,发电站(5)相对于电网进行孤岛运行(1),如果能量生成系统(5)与互连网络(1)之间没有能量交换,则包括以下步骤:-记录电源连接频率处出现的电源电压频率的时间曲线设备(5)具有互连的网络(1),以及-评估用于检测孤岛运行的电网电压频率的时程,其特征在于,评估电网电压频率的时程,对电网电压进行分析。统计分析识别特征n中包括识别的,基于市电电压频率的时间曲线的噪声分量的统计特性和孤岛运行的检测的统计特性。

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