An AC Mathematical Model for Solving Complex Restoration Problems in Radial Distribution Systems in a Treatable Runtime
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1109/ACCESS.2020.3046238 http://hdl.handle.net/11449/207905 |
Resumo: | A restoration problem in a radial electrical distribution system (EDS) is solved to restore de-energized loads downstream of sectors affected by a permanent fault, transferring loads among primary feeders through switching operations. As it is a computationally complex problem, its resolution by exact optimization techniques in a treatable runtime is a difficult task. The complexity is related to the number of switches available for solution. To reduce investment costs, a typical EDS has switches only in a portion of the branches, but the number of switches tends to be expressive in larger systems. In this context, less complex restoration problems have been successfully solved in the literature by exact methods, but they tend to be prohibitive in highly complex problems. In this paper, a mathematical model with an enhanced approach solves, through exact techniques, the restoration problem in a relatively large radial EDS with the aim of evaluating its ability to obtain optimal operationally reliable solutions with low computational effort. The problem is solved without simplifying the topological structure of the system and using only two types of binary variables. The model minimizes the demand not supplied with a minimum number of switching operations, allowing considering the influence of priority loads and remotely controlled switches, and ensures a feasible and radial operation. Tests were carried out on a radial 417-bus EDS adapted to have switches at strategic locations and the results show that the model effectively provides optimal solutions and can be applied for larger systems mainly in an offline or preventive way. |
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An AC Mathematical Model for Solving Complex Restoration Problems in Radial Distribution Systems in a Treatable RuntimeLarge-scale distribution systemsmathematical modelingservice restorationA restoration problem in a radial electrical distribution system (EDS) is solved to restore de-energized loads downstream of sectors affected by a permanent fault, transferring loads among primary feeders through switching operations. As it is a computationally complex problem, its resolution by exact optimization techniques in a treatable runtime is a difficult task. The complexity is related to the number of switches available for solution. To reduce investment costs, a typical EDS has switches only in a portion of the branches, but the number of switches tends to be expressive in larger systems. In this context, less complex restoration problems have been successfully solved in the literature by exact methods, but they tend to be prohibitive in highly complex problems. In this paper, a mathematical model with an enhanced approach solves, through exact techniques, the restoration problem in a relatively large radial EDS with the aim of evaluating its ability to obtain optimal operationally reliable solutions with low computational effort. The problem is solved without simplifying the topological structure of the system and using only two types of binary variables. The model minimizes the demand not supplied with a minimum number of switching operations, allowing considering the influence of priority loads and remotely controlled switches, and ensures a feasible and radial operation. Tests were carried out on a radial 417-bus EDS adapted to have switches at strategic locations and the results show that the model effectively provides optimal solutions and can be applied for larger systems mainly in an offline or preventive way.Department of Electrical Engineering, São Paulo State University (UNESP), Av. Brasil, 56, Centro, Ilha Solteira, SP, 15385-000, Brazil. (e-mail: elianesouza.col@gmail.com)Department of Electrical Engineering, São Paulo State University (UNESP), Av. Brasil, 56, Centro, Ilha Solteira, SP, 15385-000, Brazil.Universidade Estadual Paulista (Unesp)Souza, Eliane S.Puerta, Gabriel F.Romero, Ruben2021-06-25T11:02:59Z2021-06-25T11:02:59Z2020-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1109/ACCESS.2020.3046238IEEE Access.2169-3536http://hdl.handle.net/11449/20790510.1109/ACCESS.2020.30462382-s2.0-85098766794Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengIEEE Accessinfo:eu-repo/semantics/openAccess2024-07-04T19:06:35Zoai:repositorio.unesp.br:11449/207905Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:17:03.167691Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
An AC Mathematical Model for Solving Complex Restoration Problems in Radial Distribution Systems in a Treatable Runtime |
title |
An AC Mathematical Model for Solving Complex Restoration Problems in Radial Distribution Systems in a Treatable Runtime |
spellingShingle |
An AC Mathematical Model for Solving Complex Restoration Problems in Radial Distribution Systems in a Treatable Runtime Souza, Eliane S. Large-scale distribution systems mathematical modeling service restoration |
title_short |
An AC Mathematical Model for Solving Complex Restoration Problems in Radial Distribution Systems in a Treatable Runtime |
title_full |
An AC Mathematical Model for Solving Complex Restoration Problems in Radial Distribution Systems in a Treatable Runtime |
title_fullStr |
An AC Mathematical Model for Solving Complex Restoration Problems in Radial Distribution Systems in a Treatable Runtime |
title_full_unstemmed |
An AC Mathematical Model for Solving Complex Restoration Problems in Radial Distribution Systems in a Treatable Runtime |
title_sort |
An AC Mathematical Model for Solving Complex Restoration Problems in Radial Distribution Systems in a Treatable Runtime |
author |
Souza, Eliane S. |
author_facet |
Souza, Eliane S. Puerta, Gabriel F. Romero, Ruben |
author_role |
author |
author2 |
Puerta, Gabriel F. Romero, Ruben |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Souza, Eliane S. Puerta, Gabriel F. Romero, Ruben |
dc.subject.por.fl_str_mv |
Large-scale distribution systems mathematical modeling service restoration |
topic |
Large-scale distribution systems mathematical modeling service restoration |
description |
A restoration problem in a radial electrical distribution system (EDS) is solved to restore de-energized loads downstream of sectors affected by a permanent fault, transferring loads among primary feeders through switching operations. As it is a computationally complex problem, its resolution by exact optimization techniques in a treatable runtime is a difficult task. The complexity is related to the number of switches available for solution. To reduce investment costs, a typical EDS has switches only in a portion of the branches, but the number of switches tends to be expressive in larger systems. In this context, less complex restoration problems have been successfully solved in the literature by exact methods, but they tend to be prohibitive in highly complex problems. In this paper, a mathematical model with an enhanced approach solves, through exact techniques, the restoration problem in a relatively large radial EDS with the aim of evaluating its ability to obtain optimal operationally reliable solutions with low computational effort. The problem is solved without simplifying the topological structure of the system and using only two types of binary variables. The model minimizes the demand not supplied with a minimum number of switching operations, allowing considering the influence of priority loads and remotely controlled switches, and ensures a feasible and radial operation. Tests were carried out on a radial 417-bus EDS adapted to have switches at strategic locations and the results show that the model effectively provides optimal solutions and can be applied for larger systems mainly in an offline or preventive way. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-01-01 2021-06-25T11:02:59Z 2021-06-25T11:02:59Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1109/ACCESS.2020.3046238 IEEE Access. 2169-3536 http://hdl.handle.net/11449/207905 10.1109/ACCESS.2020.3046238 2-s2.0-85098766794 |
url |
http://dx.doi.org/10.1109/ACCESS.2020.3046238 http://hdl.handle.net/11449/207905 |
identifier_str_mv |
IEEE Access. 2169-3536 10.1109/ACCESS.2020.3046238 2-s2.0-85098766794 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
IEEE Access |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129183355764736 |