Title :
A simple method to determine observable islands for state estimation
Author :
Gou, Bei ; Abur, A.
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
Abstract :
This paper presents a numerical method which makes use of the triangular factors of a singular gain matrix in order to determine the observable islands for a given set of measurements. The proposed method can accomplish this task in a noniterative manner by way of sparse triangular factorization and back substitution only. Numerical examples demonstrating the application of the proposed method to typical power systems are also included
Keywords :
matrix decomposition; numerical analysis; observability; power system state estimation; state estimation; IEEE 14 bus system; back substitution; numerical method; observable islands; power systems; singular gain matrix; sparse triangular factorization; state estimation; triangular factors; HEMTs; Information analysis; Jacobian matrices; MODFETs; Observability; Power system analysis computing; Power system modeling; Sparse matrices; State estimation; Symmetric matrices;
Conference_Titel :
Circuits and Systems, 1999. ISCAS '99. Proceedings of the 1999 IEEE International Symposium on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-5471-0
DOI :
10.1109/ISCAS.1999.777623
