Postfault optimal islanding of smart grids using a reinforcement learning approach

Abstract This paper presents a method for optimal reconfiguration of smart grids following the occurrence of short circuit faults. Due to restoration delays, the aim of the proposed approach is to save the maximum possible number of loads by forming stable islands and serving loads with Distributed...

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Main Authors: Hamed Rezapour, Sadegh Jamali
Format: Article
Language:English
Published: Wiley 2023-06-01
Series:IET Generation, Transmission & Distribution
Subjects:
Online Access:https://doi.org/10.1049/gtd2.12815
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author Hamed Rezapour
Sadegh Jamali
author_facet Hamed Rezapour
Sadegh Jamali
author_sort Hamed Rezapour
collection DOAJ
description Abstract This paper presents a method for optimal reconfiguration of smart grids following the occurrence of short circuit faults. Due to restoration delays, the aim of the proposed approach is to save the maximum possible number of loads by forming stable islands and serving loads with Distributed Energy Resources (DERs). The islanding plan aims to prevent island instability and to help DERs continue supplying the maximum number of loads by the optimal network reconfiguration. Fault isolation is carried out by the protection system and the proposed procedure is commenced right after the fault isolation by controlling the condition of the network remote‐controlled switches. The proposed islanding plan is a novel method by this paper in the management of the postfault conditions of smart grids. Furthermore, a Q‐learning reinforcement approach is presented as the optimization tool because of its great capability and fast response for the determination of optimal reconfiguration. Numerous simulation tests for various fault locations on a 6‐bus and a 33‐bus test networks show the effectiveness of the proposed method in the improvement of postfault network reliability and sustainability.
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spelling doaj.art-e12a9b3b11c04f51a362208d109d5e622023-06-14T14:45:14ZengWileyIET Generation, Transmission & Distribution1751-86871751-86952023-06-0117112471248210.1049/gtd2.12815Postfault optimal islanding of smart grids using a reinforcement learning approachHamed Rezapour0Sadegh Jamali1Centre of Excellence for Power System Automation and Operation, Electrical Engineering Department Iran University of Science and Technology Tehran IranCentre of Excellence for Power System Automation and Operation, Electrical Engineering Department Iran University of Science and Technology Tehran IranAbstract This paper presents a method for optimal reconfiguration of smart grids following the occurrence of short circuit faults. Due to restoration delays, the aim of the proposed approach is to save the maximum possible number of loads by forming stable islands and serving loads with Distributed Energy Resources (DERs). The islanding plan aims to prevent island instability and to help DERs continue supplying the maximum number of loads by the optimal network reconfiguration. Fault isolation is carried out by the protection system and the proposed procedure is commenced right after the fault isolation by controlling the condition of the network remote‐controlled switches. The proposed islanding plan is a novel method by this paper in the management of the postfault conditions of smart grids. Furthermore, a Q‐learning reinforcement approach is presented as the optimization tool because of its great capability and fast response for the determination of optimal reconfiguration. Numerous simulation tests for various fault locations on a 6‐bus and a 33‐bus test networks show the effectiveness of the proposed method in the improvement of postfault network reliability and sustainability.https://doi.org/10.1049/gtd2.12815distributed energy resources (DERs)islandingreinforcement learningreliabilitysmart grid
spellingShingle Hamed Rezapour
Sadegh Jamali
Postfault optimal islanding of smart grids using a reinforcement learning approach
IET Generation, Transmission & Distribution
distributed energy resources (DERs)
islanding
reinforcement learning
reliability
smart grid
title Postfault optimal islanding of smart grids using a reinforcement learning approach
title_full Postfault optimal islanding of smart grids using a reinforcement learning approach
title_fullStr Postfault optimal islanding of smart grids using a reinforcement learning approach
title_full_unstemmed Postfault optimal islanding of smart grids using a reinforcement learning approach
title_short Postfault optimal islanding of smart grids using a reinforcement learning approach
title_sort postfault optimal islanding of smart grids using a reinforcement learning approach
topic distributed energy resources (DERs)
islanding
reinforcement learning
reliability
smart grid
url https://doi.org/10.1049/gtd2.12815
work_keys_str_mv AT hamedrezapour postfaultoptimalislandingofsmartgridsusingareinforcementlearningapproach
AT sadeghjamali postfaultoptimalislandingofsmartgridsusingareinforcementlearningapproach