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首页> 外文会议>2010 9th International Conference on Environment and Electrical Engineering >Voltage and frequency time series analysis improvements in transforming data from quality survey into information
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Voltage and frequency time series analysis improvements in transforming data from quality survey into information

机译：电压和频率时间序列分析的改进，可将数据从质量调查转换为信息

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The paper investigates the nature of voltage and frequency time series. The analysis is based on long term half cycle survey fulfilled with dedicated IEC 61000-4-30 class A equipment. The aim of our investigation is to improve the usefulness of half cycle data gathered in measurement campaigns. In order to do this, IEC 61000-4-30 requirements are analyzed with respect to the concept of data, information, knowledge pyramid. We present one simple way to improve the usefulness of data by drawing boxplot charts instead of using aggregated values as described in the standard. Second investigation is basic patterns identification used in order to better describe frequency. In the end, the hypotheses of fractal behaviour of voltage/frequency time series is tested by calculating Hurst exponent for different periods of time.
机译：本文研究了电压和频率时间序列的性质。该分析基于长期的半周期调查，该调查通过专用的IEC 61000-4-30 A级设备完成。我们调查的目的是提高测量活动中收集的半周期数据的实用性。为此，针对数据，信息，知识金字塔的概念分析了IEC 61000-4-30的要求。我们提出了一种通过绘制箱线图而不是使用标准中描述的聚合值来提高数据实用性的简单方法。第二次调查是为了更好地描述频率而使用的基本模式识别。最后，通过计算不同时间段的赫斯特指数来检验电压/频率时间序列的分形行为假说。

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