Title :
Observability analysis based on path graph concepts and triangular factorization of the Jacobian matrix
Author :
Benedito, R.A.S. ; Moreira, E.M. ; London, J. B A, Jr. ; Bretas, N.G.
Author_Institution :
Univ. of Sao Paulo (EESC-USP), Sao Carlos
Abstract :
In this paper a method of observability analysis and identification of observable islands is proposed. The method is based on path graph concepts and triangular factorization of the Jacobian matrix. The main characteristic of the proposed method is to allow observable islands identification in a very simple and fast way, without demanding solutions of any algebraic equation. The method was tested in the IEEE-14, 30 and 118 bus system, providing to be reliable, fast, easy to implement and suitable for real-time operation.
Keywords :
Jacobian matrices; graph theory; observability; power systems; Jacobian matrix; observability analysis; path graph concepts; real-time operation; triangular factorization; Equations; Jacobian matrices; Observability; Power system analysis computing; Power system control; Power system measurements; Power system reliability; Real time systems; State estimation; System testing; Electric Power Systems; Network Observability; Observable Island Identification; Path Graph Concepts; State Estimation;
Conference_Titel :
Transmission and Distribution Conference and Exposition: Latin America, 2008 IEEE/PES
Conference_Location :
Bogota
Print_ISBN :
978-1-4244-2217-3
Electronic_ISBN :
978-1-4244-2218-0
DOI :
10.1109/TDC-LA.2008.4641699
