Title :
Algorithm for state estimation and network error identification with Phasor measurements
Author :
Balasubramani, S. ; Raghuraman, S. ; Venkatesh, S. ; Karthick, C. ; Vidya, B.
Author_Institution :
Dept. of EEE, Velammal Eng. Coll., Chennai, India
Abstract :
This paper presents a modified algorithm for state estimation with considering the network error in the system. The network errors cannot be detected by normal methods so Phasor measurements are used to identify the network error in the system. The formulated coefficient matrix has unique triangular factorization which can be accomplished by using sparsity criterion. This method is illustrated with an IEEE 14-bus system and their results are given.
Keywords :
matrix decomposition; phase measurement; power system measurement; power system state estimation; IEEE 14-bus system; coefficient matrix; network error identification; phasor measurements; power system state estimation; sparsity criterion; triangular factorization; Current measurement; Jacobian matrices; Measurement uncertainty; Power systems; Sparse matrices; State estimation; Voltage measurement; State estimation with Phasor measurements; bad data detection and identification; cholesky factors; critical measurements; multiple solutions; parameter error; positive definite matrix; state estimation;
Conference_Titel :
Electronics Computer Technology (ICECT), 2011 3rd International Conference on
Conference_Location :
Kanyakumari
Print_ISBN :
978-1-4244-8678-6
Electronic_ISBN :
978-1-4244-8679-3
DOI :
10.1109/ICECTECH.2011.5941905
