A novel and efficient power system state estimation algorithm based on Weighted Least Square (WLS) approach service

  • Mohammad Abdolkarimzadeh
  • Farid Hamzeh Aghdam

Abstract

This paper presents a very fast power system state estimating algorithm to solve the power system state estimation problem.Conventional techniques of state estimation, which are based on the Weighted Least Square (WLS) method, face manyissues, including lack of observability, high sensitivity to model parameters and long calculation time in large power systems.The main objective of conventional WLS methods is to minimize a linear objective function, while the aim of the presentedmethod is to improve the results of conventional algorithms and obtain the least minimum possible value of the linear objectivefunction alongside solving the problems mentioned above, by means of an iterative method. The proposed approach is testedon IEEE 14, 30 and 57 bus test systems using MATLAB software. The results reflect the considerable performance of theproposed method.

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Published
2019-03-13
How to Cite
ABDOLKARIMZADEH, Mohammad; HAMZEH AGHDAM, Farid. A novel and efficient power system state estimation algorithm based on Weighted Least Square (WLS) approach service. Journal of Power Technologies, [S.l.], v. 99, n. 1, p. 15–24, mar. 2019. ISSN 2083-4195. Available at: <https://papers.itc.pw.edu.pl/index.php/JPT/article/view/1258>. Date accessed: 22 oct. 2021.
Section
Electrical Engineering

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