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An extended Kalman filtering approach for detection and analysis of voltage dips in power systems

机译:一种扩展的卡尔曼滤波方法,用于检测和分析电力系统中的电压骤降

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摘要

This paper proposes a new method based on the use of an extended Kalman filter for the detection and analysis of voltage dips in power systems. The paper describes the model used to enable the most accurate representation of the system and the selection of the parameters to ensure optimal filter performance. The results obtained using this method are presented both for simulated and for real voltage dips and are compared with the results obtained using the rms method proposed in the power quality standards in order to demonstrate the improved performance of this new method in the estimation of the time instant of the beginning and end of a voltage dip as well as in the estimation of the magnitude and phase angle of voltage supply during the event.
机译:本文提出了一种基于扩展卡尔曼滤波器的新方法,用于检测和分析电力系统中的电压骤降。本文介绍了用于实现最准确的系统表示和用于确保最佳过滤器性能的参数选择的模型。给出了使用此方法获得的结果(用于模拟和实际电压骤降),并将其与电能质量标准中提出的均方根方法获得的结果进行了比较,以证明该新方法在估计时间方面的改进性能电压骤降​​开始和结束的瞬间,以及在事件期间估计电压供应的幅度和相位角。

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