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Optimal power flow solutions to power systems with wind energy using a highly effective meta-heuristic algorithm

1Department of Electric Power Systems, School of Electrical and Electronic Engineering, Hanoi University of Science and Technology, Hanoi, Viet Nam

2Faculty of Mechanical and Electrical, Naval Academy, Nhatrang, Viet Nam

3Faculty of Electrical Engineering, The University of Danang - University of Science and Technology, Danang, Viet Nam

Received: 1 Jan 2023; Revised: 4 Mar 2023; Accepted: 14 Mar 2023; Available online: 30 Mar 2023; Published: 16 May 2023.
Editor(s): H Hadiyanto
Open Access Copyright (c) 2023 The Author(s). Published by Centre of Biomass and Renewable Energy (CBIORE)
Creative Commons License This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

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This paper implements two novel meta-heuristic algorithms, including the Coati optimization algorithm (COA) and War strategy optimization (WSO) for determining the optimal solutions to the optimal power flow problem incorporating the use of wind turbines (WTs). Two objective functions are considered in this study, including minimizing the entire electricity generation expenditure (EEGE) with the value point effect and minimizing the voltage fluctuation index (VFI). IEEE 30-bus system is chosen to conduct the whole study and validate the efficiency of the two applied methods. Furthermore, DFIG WTs are used in grids with varying power output and power factor ranges. The comparison of the results obtained from the two methods in all case studies reveals that WSO is vastly superior to COA in almost all aspects. In addition, the positive contributions of WTs to the EEGE and VFI while they are properly placed in the grid are also clarified by using WSO. As a result, WSO is acknowledged as a highly effective search method for dealing with such optimal power flow (OPF) problems considering the presence of renewable energy sources.

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Keywords: Optimal power flow; renewable energy sources; wind turbines; Coati optimization algorithms; War strategy optimization

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