Impact of Transformer Correlations in State Estimation Using the Unscented Transformation

被引：28
作者：
Caro, Eduardo [1 ]
Valverde, Gustavo [2 ]
机构：
[1] Tech Univ Madrid, Dept Stat, Madrid, Spain
[2] Univ Costa Rica, Sch Elect Engn, San Jose, Costa Rica
来源：
IEEE TRANSACTIONS ON POWER SYSTEMS | 2014年 / 29卷 / 01期
关键词：
Correlated measurements; power system state estimation; uncertainty estimation; unscented transformation; ERROR IDENTIFICATION;
D O I：
10.1109/TPWRS.2013.2279189
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper addresses the power system state estimation problem considering the correlations among instrument transformer signals. The correlations among processed measurements are estimated using the Unscented Transformation given the correlation and basic statistical information of internal measurements. In addition, the paper analyzes the impact of these correlations on the estimated states using the IEEE 118-bus test system under various operating conditions and measurement configurations.
引用
收藏
页码：368 / 376
页数：9
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