Binary-arithmetic approach to observability checking in state estimation

被引:19
|
作者
Solares, C. [1 ]
Conejo, A. J. [1 ]
Castillo, E. [2 ]
Pruneda, R. E. [1 ]
机构
[1] Univ Castilla La Mancha, E-13071 Ciudad Real, Spain
[2] Univ Cantabria, E-39005 Santander, Spain
关键词
MEASUREMENT JACOBIAN MATRIX; POWER-SYSTEM OBSERVABILITY; NETWORK GRAPH-THEORY; MEASUREMENT PLACEMENT; ALGORITHM;
D O I
10.1049/iet-gtd.2008.0248
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
An efficient and robust technique for observability checking in power system state estimation based on Gaussian elimination and binary arithmetic is provided. Since the proposed technique uses binary arithmetic, no rounding error, numerical instability or zero identification problems occur. In some cases, the technique may not identify all observable state variables, requiring an additional numerical analysis over a matrix of dimension that is highly reduced. An illustrative example of small size and a realistic case study are used to demonstrate the features of the proposed technique. Adequate conclusions are finally drawn.
引用
收藏
页码:336 / 345
页数:10
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