A Method Based on Weighted Least Squares for Estimating Voltage of Distribution Network System Integrated with Distributed Generations Using Remote Measurement Data

Ngoc Hung Truong

doi:10.6180/jase.202401_27(1).0008

A Method Based on Weighted Least Squares for Estimating Voltage of Distribution Network System Integrated with Distributed Generations Using Remote Measurement Data

Computer Science and Information Engineering

Truong Ngoc HungThis email address is being protected from spambots. You need JavaScript enabled to view it.

Department of I.T., FPT University - Quy Nhon A.I Campus, Nhon Binh ward, Quy Nhon city, Binh Dinh Province, Viet Nam

Received: October 6, 2022
Accepted: April 18, 2023
Publication Date: June 13, 2023

Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

Download Citation: ||https://doi.org/10.6180/jase.202401_27(1).0008

Voltage quality of a distribution network system is one of the most important issues. To evaluate the voltage in real-time, this paper proposes a method of voltage estimation in distribution network systems which are
integrated with distributed generations (DGs). In the proposed method, the weighted least squares (WLS) method is used to optimize the objective function of the error measurement which is built by the network configuration, real-time and pseudo measurements at the main substation and DG buses. The proposed method is verified by simulation case studies of the 17-bus radial distribution network integrated with DGs including a solar power plant and two wind power plants. The simulation results in this work confirm that the proposed method is high accuracy for voltage estimation.

Keywords: distribution network system, real-time measurement, distributed generation, voltage estimation

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