Self-healing strategy for distribution networks with AC flexible interconnection devices
The closing-loop and splitting-loop operations of sectionalizing switches and tie switches serve as crucial means for self-healing in distribution network feeder areas. However, the inrush currents generated during closing-loop operations impact the secure and stable operation of distribution networ...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2025-08-01
|
| Series: | Frontiers in Energy Research |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fenrg.2025.1572606/full |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849229029425545216 |
|---|---|
| author | Xiaojun Ni Yi Lu Chao Ding Yufei Shang Zihan Wang |
| author_facet | Xiaojun Ni Yi Lu Chao Ding Yufei Shang Zihan Wang |
| author_sort | Xiaojun Ni |
| collection | DOAJ |
| description | The closing-loop and splitting-loop operations of sectionalizing switches and tie switches serve as crucial means for self-healing in distribution network feeder areas. However, the inrush currents generated during closing-loop operations impact the secure and stable operation of distribution networks. To address these challenges, this paper analyzes the effects of steady-state circulating currents and closing-loop inrush currents caused by tie-switch operations on loop-closing branches. Leveraging the dynamic compensation characteristics of AC flexible interconnection devices (FIDs), we elucidate the working principles of FID-based distribution network self-healing and propose an inrush-current-free closing-loop method utilizing FIDs. For distribution networks incorporating wind and solar resources, constraints characterizing line power flow, nodal voltage, branch capacity, and network topology are established, forming a multi-objective optimization model for self-healing that considers renewable energy accommodation capacity. Finally, case studies demonstrate the effectiveness of the proposed self-healing scheme in enhancing renewable energy accommodation capabilities. |
| format | Article |
| id | doaj-art-90f3b487aa7040918521ba0e2c08cf0e |
| institution | Kabale University |
| issn | 2296-598X |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Energy Research |
| spelling | doaj-art-90f3b487aa7040918521ba0e2c08cf0e2025-08-22T10:08:42ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2025-08-011310.3389/fenrg.2025.15726061572606Self-healing strategy for distribution networks with AC flexible interconnection devicesXiaojun Ni0Yi Lu1Chao Ding2Yufei Shang3Zihan Wang4State Grid Zhejiang Electric Power Research Institute, Hangzhou, Zhejiang, ChinaState Grid Zhejiang Electric Power Research Institute, Hangzhou, Zhejiang, ChinaState Grid Zhejiang Electric Power Research Institute, Hangzhou, Zhejiang, ChinaSchool of Automation, Wuhan University of Technology, Wuhan, Hubei, ChinaSchool of Automation, Wuhan University of Technology, Wuhan, Hubei, ChinaThe closing-loop and splitting-loop operations of sectionalizing switches and tie switches serve as crucial means for self-healing in distribution network feeder areas. However, the inrush currents generated during closing-loop operations impact the secure and stable operation of distribution networks. To address these challenges, this paper analyzes the effects of steady-state circulating currents and closing-loop inrush currents caused by tie-switch operations on loop-closing branches. Leveraging the dynamic compensation characteristics of AC flexible interconnection devices (FIDs), we elucidate the working principles of FID-based distribution network self-healing and propose an inrush-current-free closing-loop method utilizing FIDs. For distribution networks incorporating wind and solar resources, constraints characterizing line power flow, nodal voltage, branch capacity, and network topology are established, forming a multi-objective optimization model for self-healing that considers renewable energy accommodation capacity. Finally, case studies demonstrate the effectiveness of the proposed self-healing scheme in enhancing renewable energy accommodation capabilities.https://www.frontiersin.org/articles/10.3389/fenrg.2025.1572606/fullAC flexible interconnection deviceself-healingnon-impact ring closuremultiobjective optimizationwind and solar energy consumption |
| spellingShingle | Xiaojun Ni Yi Lu Chao Ding Yufei Shang Zihan Wang Self-healing strategy for distribution networks with AC flexible interconnection devices Frontiers in Energy Research AC flexible interconnection device self-healing non-impact ring closure multiobjective optimization wind and solar energy consumption |
| title | Self-healing strategy for distribution networks with AC flexible interconnection devices |
| title_full | Self-healing strategy for distribution networks with AC flexible interconnection devices |
| title_fullStr | Self-healing strategy for distribution networks with AC flexible interconnection devices |
| title_full_unstemmed | Self-healing strategy for distribution networks with AC flexible interconnection devices |
| title_short | Self-healing strategy for distribution networks with AC flexible interconnection devices |
| title_sort | self healing strategy for distribution networks with ac flexible interconnection devices |
| topic | AC flexible interconnection device self-healing non-impact ring closure multiobjective optimization wind and solar energy consumption |
| url | https://www.frontiersin.org/articles/10.3389/fenrg.2025.1572606/full |
| work_keys_str_mv | AT xiaojunni selfhealingstrategyfordistributionnetworkswithacflexibleinterconnectiondevices AT yilu selfhealingstrategyfordistributionnetworkswithacflexibleinterconnectiondevices AT chaoding selfhealingstrategyfordistributionnetworkswithacflexibleinterconnectiondevices AT yufeishang selfhealingstrategyfordistributionnetworkswithacflexibleinterconnectiondevices AT zihanwang selfhealingstrategyfordistributionnetworkswithacflexibleinterconnectiondevices |