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dc.contributor.authorSilva, Alisson Lima-
dc.contributor.authorFreitas, Francisco Damasceno-
dc.contributor.authorFernandes, Luís Filomeno de Jesus-
dc.date.accessioned2024-06-14T14:50:14Z-
dc.date.available2024-06-14T14:50:14Z-
dc.date.issued2023-07-12-
dc.identifier.citationSILVA, Alisson Lima; FREITAS, Francisco Damasceno; FERNANDES, Luis Filomeno de Jesus. A homotopy-based approach to solve the power flow problem in islanded microgrid with droop-controlled distributed generation units. Energies, [S. l.], v. 16, n. 14, 5323, 2023. DOI: https://doi.org/10.3390/en16145323. Disponível em: https://www.mdpi.com/1996-1073/16/14/5323.pt_BR
dc.identifier.urihttp://repositorio2.unb.br/jspui/handle/10482/48277-
dc.language.isoengpt_BR
dc.publisherMDPIpt_BR
dc.rightsAcesso Abertopt_BR
dc.titleA homotopy-based approach to solve the power flow problem in islanded microgrid with droop-controlled distributed generation unitspt_BR
dc.typeArtigopt_BR
dc.subject.keywordHomotopiapt_BR
dc.subject.keywordMétodo Newton-Raphsonpt_BR
dc.subject.keywordGeração distribuída de energia elétricapt_BR
dc.subject.keywordRecursos energéticospt_BR
dc.rights.license© 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).pt_BR
dc.identifier.doihttps://doi.org/10.3390/en16145323pt_BR
dc.description.abstract1This paper proposes a homotopy-based approach to solve the power flow problem (PFP) in islanded microgrid networks with droop-controlled distributed generation (DG) units. The technique is based on modifying an “easy” problem solution that evolves with the computation of intermediate results to the PFP solution of interest. These intermediate results require the solution of nonlinear equations through Newton–Raphson (NR) method. In favor of convergence, the intermediate solutions are close to each other, strengthening the convergence qualities of the technique for the solution of interest. The DG units are modeled with operational power limits and three types of droop-control strategies, while the loads are both magnitude voltage- and frequency-dependent. To evaluate the method performance, simulations are performed considering the proposed and classical NR methods, both departing from a flat start estimation. Tests are carried out in three test systems. Different load and DG unit scenarios are implemented for a 6-, 38-, and 69-bus test system. A base case is studied for all systems, while for the two larger models, a loading factor is used to simulate the load augmenting up to the maximum value. The results demonstrated that for the largest-size model system, only the homotopy-based approach could solve the PFP for stringent requirements such as the diversification of the load profile and hard loading operation point.pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-1541-4807pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-0172-9402pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-4874-9515pt_BR
dc.contributor.affiliationUniversity of Brasilia, Department of Electrical Engineeringpt_BR
dc.contributor.affiliationUniversity of Brasilia, Department of Electrical Engineeringpt_BR
dc.contributor.affiliationUniversity of Brasilia, Faculdade do Gamapt_BR
dc.description.unidadeFaculdade de Tecnologia (FT)pt_BR
dc.description.unidadeDepartamento de Engenharia Elétrica (FT ENE)pt_BR
dc.description.unidadeFaculdade UnB Gama (FGA)pt_BR
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