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arXiv · 1712.08871

A Data-driven Approach to Multi-event Analytics in Large-scale Power Systems Using Factor Model

Fan Yang·Xing He·Robert Caiming Qiu·Zenan Ling
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Abstract

Multi-event detection and recognition in real time is of challenge for a modern grid as its feature is usually non-identifiable. Based on factor model, this paper porposes a data-driven method as an alternative solution under the framework of random matrix theory. This method maps the raw data into a high-dimensional space with two parts: 1) the principal components (factors, mapping event signals); and 2) time series residuals (bulk, mapping white/non-Gaussian noises). The spatial information is extracted form factors, and the termporal infromation from residuals. Taking both spatial-tempral correlation into account, this method is able to reveal the multi-event: its components and their respective details, e.g., occurring time. Case studies based on the standard IEEE 118-bus system validate the proposed method.

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Fan Yang, Xing He, Robert Caiming Qiu, Zenan Ling. 2017-12-24. A Data-driven Approach to Multi-event Analytics in Large-scale Power Systems Using Factor Model. https://arxiv.org/abs/1712.08871

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