Performance of Response Based One Shot Controls Handling Missing Phasor Measurements
Performance of Response Based One Shot Controls Handling Missing Phasor Measurements
复制标题
DOI：
10.1109/pesgm41954.2020.9281396
复制
发表时间：
2020-08
期刊：
影响因子：
--
通讯作者：
Niraj Dahal;S. Rovnyak
中科院分区：
文献类型：
--
作者：
Niraj Dahal;S. Rovnyak
PMU实时数据采集技术的出现，为解决电力系统中的一些失稳问题提供了可能性。然而，PMU可能会遇到不同的数据质量问题，如记录错误数据或丢失数据。一些文献提到在一些历史PMU的数据集中大约有5-10%的缺失样本。本文通过随机删除测量值，假设0-10%的相量样本缺失，探讨了真实的实时缺失数据处理的插补方法。在WECC的176节点模型中进行了基于DT的稳定预测和单次控制方案的仿真。对基于响应的单触发控制方案的几种控制性能进行了评估，以确定一种有用的丢失数据恢复方法。PMU数据质量问题不仅限于缺失样本，还包括噪声干扰。本文的后半部分考虑噪声相量测量进行仿真。故意将45 dB的高斯分布噪声添加到相量样本中，并使用不同的DT指标和阈值进行仿真，以用于真实的时间稳定性预测和控制激励。
With the advent of real-time PMU data acquisition technology, the possibility of solutions to several instability problems in power system has increased. However, PMUs may undergo different data quality issues like recording bad data or missing data. Some paper mentions about 5-10% of missing samples in some historical PMU’s dataset. This paper assumes 0-10% of missing phasor samples by randomly deleting measurements and explores imputation methods of handling missing data in real time. The simulation is carried out in a DT-based stability prediction and one-shot control scheme of WECC’s 176-bus model. Several control performances are evaluated to decide a useful method of missing data recovery for the response based one shot control scheme. A PMU data quality issue is not limited to missing samples only but also interference with noises. Later part of this paper performs simulation considering noisy phasor measurements. A 45 dB of Gaussian distributed noise is deliberately added to phasor samples and simulation is performed with different DT indices and thresholds for real time stability prediction and control actuation.