Assessing Gaussian Assumption of PMU Measurement Error Using Field Data
Assessing Gaussian Assumption of PMU Measurement Error Using Field Data
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DOI：
10.1109/tpwrd.2017.2762927
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发表时间：
2018-12-01
影响因子：
4.4
通讯作者：
Diao, Ruisheng
中科院分区：
文献类型：
--
作者：
Wang, Shaobu;Zhao, Junbo;Diao, Ruisheng
高斯相量测量单元（PMU）的测量误差在电力系统的许多应用中都是假定的，如状态估计、振荡模式监测、电压稳定性分析等。这封信提出了一个简单而有效的方法，通过使用概率分布的稳定性和冗余测量的概念来评估这一假设。利用WECC系统的现场PMU数据进行的大量结果表明，高斯假设是有问题的。
Gaussian phasor measurement unit (PMU) measurement error has been assumed for many power system applications, such as state estimation, oscillatory modes monitoring, voltage stability analysis, to cite a few. This letter proposes a simple yet effective approach to assess this assumption by using the stability property of a probability distribution and the concept of redundant measurement. Extensive results using field PMU data from WECC system reveal that the Gaussian assumption is questionable.