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arXiv 2202.04378stat.APcs.SYeess.SY
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基于量测的鲁棒非高斯过程仿真器在数据驱动随机潮流中的应用

A Measurement-Based Robust Non-Gaussian Process Emulator Applied to Data-Driven Stochastic Power Flow

Pooja Algikar, Yijun Xu, Lamine Mili

摘要:

在本文中,我们提出了一个强大的非高斯过程仿真器的基础上Schweppe型广义极大似然估计,这是训练计量时间序列的电压相量和功率注入执行随机潮流。电力系统数据经常被故障条件、停电和极端天气等引起的异常值破坏。所提出的仿真器使用基于投影统计计算的权重来限制离群值的影响,投影统计是与因子空间的行向量相关联的数据点的鲁棒距离。具体而言,所开发的估计器对垂直离群值和不良杠杆点具有鲁棒性,同时保留训练数据集测量中的良好杠杆点。所提出的方法证明了一个不平衡的径向IEEE 33总线系统严重集成可再生能源。

英文摘要:

In this paper, we propose a robust non-Gaussian process emulator based on the Schweppe-type generalized maximum likelihood estimator, which is trained on metered time series of voltage phasors and power injections to perform stochastic power flow. Power system data are often corrupted with outliers caused by fault conditions, power outages, and extreme weather, to name a few. The proposed emulator bounds the influence of the outliers using weights calculated based on projection statistics, which are robust distances of the data points associated with the rows vectors of the factor space. Specifically, the developed estimator is robust to vertical outliers and bad leverage points while retaining good leverage points in the measurements of the training dataset. The proposed method is demonstrated on an unbalanced radial IEEE 33-Bus system heavily integrated with renewable energy sources.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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