An Optimization-Based Intentional Islanding Scheme for Service Restoration in Distribution Systems Considering Anti-Parallel Operation of Distributed Generations
An islanding operation of distributed generations (DGs) in emergencies due to a fault in distribution systems can be a means of power supply for important loads in outage areas by facilitating the self-sufficient capability of DGs forming microgrids. This paper presents an optimization-based intenti...
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MDPI AG
2023-04-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/9/5501 |
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| author | Bangjie Qiu Jae-Guk An Jin-Uk Song Yun-Sik Oh |
| author_facet | Bangjie Qiu Jae-Guk An Jin-Uk Song Yun-Sik Oh |
| author_sort | Bangjie Qiu |
| collection | DOAJ |
| description | An islanding operation of distributed generations (DGs) in emergencies due to a fault in distribution systems can be a means of power supply for important loads in outage areas by facilitating the self-sufficient capability of DGs forming microgrids. This paper presents an optimization-based intentional islanding scheme to derive a near-optimal service restoration (SR) plan. The anti-parallel operation of DGs is considered a new constraint that avoids more than two DGs in an island thereby, enabling simpler control and operation of the distribution system in an emergency. Each island is created by an island partitioning scheme based on the tree representation of the network and fast searching scheme for the tree structure considering load importance, and a genetic algorithm (GA) is utilized to explore possible SR solutions. Case studies on IEEE 69-bus distribution system according to various fault locations are conducted, and the simulation results show that the proposed scheme can restore more loads with higher priority in outage areas by the intentional islanding of DGs. Furthermore, the time for deriving the optimal solution can be reduced since the evaluations for infeasible solutions are not performed. |
| first_indexed | 2024-03-11T04:24:31Z |
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| language | English |
| last_indexed | 2024-03-11T04:24:31Z |
| publishDate | 2023-04-01 |
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| spelling | doaj.art-c63614ea91cf4056b9b4fbae45702c082023-11-17T22:34:55ZengMDPI AGApplied Sciences2076-34172023-04-01139550110.3390/app13095501An Optimization-Based Intentional Islanding Scheme for Service Restoration in Distribution Systems Considering Anti-Parallel Operation of Distributed GenerationsBangjie Qiu0Jae-Guk An1Jin-Uk Song2Yun-Sik Oh3Department of Electrical Engineering, Kyungnam University, Changwon 51767, Republic of KoreaDepartment of Electrical Engineering, Kyungnam University, Changwon 51767, Republic of KoreaDepartment of Electrical Engineering, Kyungnam University, Changwon 51767, Republic of KoreaDepartment of Electrical Engineering, Kyungnam University, Changwon 51767, Republic of KoreaAn islanding operation of distributed generations (DGs) in emergencies due to a fault in distribution systems can be a means of power supply for important loads in outage areas by facilitating the self-sufficient capability of DGs forming microgrids. This paper presents an optimization-based intentional islanding scheme to derive a near-optimal service restoration (SR) plan. The anti-parallel operation of DGs is considered a new constraint that avoids more than two DGs in an island thereby, enabling simpler control and operation of the distribution system in an emergency. Each island is created by an island partitioning scheme based on the tree representation of the network and fast searching scheme for the tree structure considering load importance, and a genetic algorithm (GA) is utilized to explore possible SR solutions. Case studies on IEEE 69-bus distribution system according to various fault locations are conducted, and the simulation results show that the proposed scheme can restore more loads with higher priority in outage areas by the intentional islanding of DGs. Furthermore, the time for deriving the optimal solution can be reduced since the evaluations for infeasible solutions are not performed.https://www.mdpi.com/2076-3417/13/9/5501anti-parallel operationdistributed generationdistribution systemintentional islandingislanding partitioningoptimization |
| spellingShingle | Bangjie Qiu Jae-Guk An Jin-Uk Song Yun-Sik Oh An Optimization-Based Intentional Islanding Scheme for Service Restoration in Distribution Systems Considering Anti-Parallel Operation of Distributed Generations Applied Sciences anti-parallel operation distributed generation distribution system intentional islanding islanding partitioning optimization |
| title | An Optimization-Based Intentional Islanding Scheme for Service Restoration in Distribution Systems Considering Anti-Parallel Operation of Distributed Generations |
| title_full | An Optimization-Based Intentional Islanding Scheme for Service Restoration in Distribution Systems Considering Anti-Parallel Operation of Distributed Generations |
| title_fullStr | An Optimization-Based Intentional Islanding Scheme for Service Restoration in Distribution Systems Considering Anti-Parallel Operation of Distributed Generations |
| title_full_unstemmed | An Optimization-Based Intentional Islanding Scheme for Service Restoration in Distribution Systems Considering Anti-Parallel Operation of Distributed Generations |
| title_short | An Optimization-Based Intentional Islanding Scheme for Service Restoration in Distribution Systems Considering Anti-Parallel Operation of Distributed Generations |
| title_sort | optimization based intentional islanding scheme for service restoration in distribution systems considering anti parallel operation of distributed generations |
| topic | anti-parallel operation distributed generation distribution system intentional islanding islanding partitioning optimization |
| url | https://www.mdpi.com/2076-3417/13/9/5501 |
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