Newton-Raphson State Estimation Solution Employing Systematically Constructed Jacobian Matrix

Newton-Raphson State Estimation method using bus admittance matrix remains as an efficient and most popular method to estimate the state variables. Elements of Jacobian matrix are computed from standard expressions which lack physical significance. In this paper, elements of the state estimation Ja...

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Bibliographic Details
Main Authors: Mohd Nor, Nursyarizal, Jegatheesan, Ramiah, Nallagownden, Perumal
Format: Citation Index Journal
Language:English
Published: WASET 2009
Subjects:
Online Access:http://scholars.utp.edu.my/id/eprint/1303/
http://scholars.utp.edu.my/id/eprint/1303/1/v3-2-16%281%29.pdf
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Summary:Newton-Raphson State Estimation method using bus admittance matrix remains as an efficient and most popular method to estimate the state variables. Elements of Jacobian matrix are computed from standard expressions which lack physical significance. In this paper, elements of the state estimation Jacobian matrix are obtained considering the power flow measurements in the network elements. These elements are processed one-by-one and the Jacobian matrix H is updated suitably in a simple manner. The constructed Jacobian matrix H is integrated with Weight Least Square method to estimate the state variables. The suggested procedure is successfully tested on IEEE standard systems.