Elimination of leverage measurements via matrix stretching

被引:11
作者
Abur, A
Magnago, FH
Alvarado, FL
机构
关键词
leverage points; matrix stretching; robust estimation; state estimation;
D O I
10.1016/S0142-0615(97)00029-X
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
Some of the measurements of a power system may have a much stronger influence on the state estimate than others due to their location, the local measurement redundancy, the network topology, and parameters. Such measurements, referred to as leverage measurements, will distort the solution of the least absolute value estimation, when they carry bad data. This paper presents a matrix stretching method by which leveraging effects of injection measurements can be eliminated. Simulation results are included to show the effectiveness of the method on typical power systems. (C) 1997 Elsevier Science Ltd.
引用
收藏
页码:557 / 562
页数:6
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