Power System State Estimation Considering Measurement Dependencies

被引：68

作者：

Caro, Eduardo ^{[1
]}

Conejo, Antonio J. ^{[1
]}

Minguez, Roberto ^{[2
]}

机构：

[1] Univ Castilla La Mancha, E-13071 Ciudad Real, Spain

[2] Univ Cantabria, Cantabria, Spain

来源：

IEEE TRANSACTIONS ON POWER SYSTEMS | 2009年 / 24卷 / 04期

关键词：

Dependent Gaussian measurements; power system state estimation; weighted least square; POINT-ESTIMATE METHOD; IDENTIFICATION;

D O I：

10.1109/TPWRS.2009.2030385

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：

State estimation measurements within a substation are routinely considered Gaussian and independent. In this paper, the questionable independence assumption is dropped and a statistical procedure is proposed to estimate the measurement variance-covariance matrix. The well-known weighted least squares technique for estimation is then modified to take into account measurement dependencies. Two case studies are analyzed and conclusions duly drawn.

引用

页码：1875 / 1885

页数：11

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