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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Optimal Restoration/Maintenance Switching Sequence of Unbalanced Three-Phase Distribution Systems

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Author(s):
Lopez, Juan Camilo [1] ; Franco, John F. [2] ; Rider, Marcos J. [1] ; Romero, Ruben [3]
Total Authors: 4
Affiliation:
[1] Univ Estadual Campinas, Dept Syst & Energy, BR-13083852 Campinas, SP - Brazil
[2] Sao Paulo State Univ, BR-19274000 Rosana - Brazil
[3] Sao Paulo State Univ, Dept Elect Engn, BR-15385 Ilha Solteira - Brazil
Total Affiliations: 3
Document type: Journal article
Source: IEEE TRANSACTIONS ON SMART GRID; v. 9, n. 6, p. 6058-6068, NOV 2018.
Web of Science Citations: 15
Abstract

This paper presents a mixed-integer non-linear programming (MINLP) model for the optimal restoration/maintenance switching sequence of unbalanced three-phase electrical distribution systems. Once the protection coordination has identified and cleared a faulty zone, the proposed MINLP model determines the status of remotely controlled switches and the dispatchable distributed generation (DG) units, used to deenergized the troubled section of the network and supply as much load as possible. The restoration considers the switching sequence over a discrete horizon, guaranteeing that the operational constraints of the distribution system are not violated Functions in every step of the sequence. Furthermore, a set of linearization strategies are presented to transform the proposed MINLP, model into a mixed-integer linear programming (MILP) model. The use of MILP models guarantees convergence to optimality by applying convex optimization techniques. Tests are performed on an unbalanced three-phase radial distribution system consisting of 123 nodes, 12 switches, and three dispatchable DG units. The obtained results show that the proposed optimization model is a holistic procedure that can be used to efficiently manage power restoration or to minimize isolated areas in case of scheduled maintenance in modern electrical distribution systems. (AU)

FAPESP's process: 15/12564-1 - Designing and Implementation of a Self-Healing Scheme for Modern Electrical Distribution Systems
Grantee:Juan Camilo Lopez Amezquita
Support Opportunities: Scholarships in Brazil - Doctorate