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

fYear

2008

fDate

13-15 Aug. 2008

Firstpage

1

Lastpage

7

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/TDC-LA.2008.4641699

Filename

4641699