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Type: Artigo
Title: Security-constrained Optimal Energy Management System For Three-phase Residential Microgrids
Author: Vergara
Pedro P.; Lopez
Juan Camilo; da Silva
Luiz C. P.; Rider
Marcos J.
Abstract: This paper presents a mixed-integer linear programming (MILP) model for the optimal energy management of residential microgrids, modeled as unbalanced, three-phase, electrical distribution system (EDS). Initially, the problem is formulated as a mixed-integer nonlinear programming (MINLP) problem. Then, a set of linear approximations and equivalent mathematical representations are used to obtain a precise MILP model. The proposed formulation considers three-phase generation units (GU), single-phase photovoltaic (PV) resources, and single-phase energy storage systems (ESS), as well as load management. The aim of the proposed model is to minimize the final operational costs of the microgrid while considering operational constraints of the EDS add an unexpected outage of the main grid through a security-constrained set of equations. The optimal solution of the MILP model is found using commercial convex optimization solvers. The proposed model was tested in a residential, three-phase EDS. Results show that the proposed linearizations and approximations produce accurate solutions when compared with a nonlinear three-phase OPF formulation, with an error in the objective function near to 2% and a maximum error in the voltage near to 1%. Efficiency and flexibility of the proposed methodology are also discussed. (C) 2017 Elsevier B.V. All rights reserved.
Subject: Energy Management System
Mixed Integer Linear Programming
Security Constraints
Unbalanced Three-phase Electrical
Distribution Systems
Editor: Elsevier Science SA
Rights: fechado
Identifier DOI: 10.1016/j.epsr.2017.02.012
Date Issue: 2017
Appears in Collections:Unicamp - Artigos e Outros Documentos

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