Multi-terminal flexible DC grid circuit breaker withstands multi-lightning strike analysis
Abstract Lightning represents the primary threat to power grids, with approximately 80% of natural occurrences being multi-lightning strikes, which have been extensively studied and confirmed to pose even more severe hazards. Hybrid DC circuit breakers (DCCBs) exhibit promising application prospects...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2025-01-01
|
| Series: | Scientific Reports |
| Subjects: | |
| Online Access: | https://doi.org/10.1038/s41598-025-86284-5 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832585820283863040 |
|---|---|
| author | Yutao Tang Hongchun Shu Kai He Yue Dai Yu Kuang Yiming Han Weijie Lou |
| author_facet | Yutao Tang Hongchun Shu Kai He Yue Dai Yu Kuang Yiming Han Weijie Lou |
| author_sort | Yutao Tang |
| collection | DOAJ |
| description | Abstract Lightning represents the primary threat to power grids, with approximately 80% of natural occurrences being multi-lightning strikes, which have been extensively studied and confirmed to pose even more severe hazards. Hybrid DC circuit breakers (DCCBs) exhibit promising application prospects due to their superior interruption performance. During multi-lightning strikes, lightning intrusive waves pose a greater threat to the insulation of equipment such as hybrid DC fuses, fast mechanical switches, and insulated gate bipolar transistors. Therefore, this paper establishes a simulation model using the Real-Time Digital Simulator based on the model and parameters of the DCCB in the ± 500 kV Zhangbei HVDC project in China. It analyzes the lightning intrusive waves on the DCCB and investigates the energy absorption of metal oxide varistors (MOVs) in the energy-consuming branch of the DCCB under multi-lightning strikes, as well as the overvoltage levels of various branches of the DCCB under such conditions. The research results indicate that the energy-consuming branch has a certain tolerance to multi-lightning strikes. However, if the MOV collapses under multi-lightning strikes, it can lead to severe overvoltage issues. Therefore, the design and selection of DCCBs should fully consider the impact of multi-lightning strikes. |
| format | Article |
| id | doaj-art-feb0000fd93d40aea821ce1bc47a6ee0 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-feb0000fd93d40aea821ce1bc47a6ee02025-01-26T12:31:24ZengNature PortfolioScientific Reports2045-23222025-01-0115111710.1038/s41598-025-86284-5Multi-terminal flexible DC grid circuit breaker withstands multi-lightning strike analysisYutao Tang0Hongchun Shu1Kai He2Yue Dai3Yu Kuang4Yiming Han5Weijie Lou6The State Key Laboratory of Collaborative Innovation Center for Smart Grid Fault Detection, Protection and Control Jointly, Kunming University of Science and TechnologyThe State Key Laboratory of Collaborative Innovation Center for Smart Grid Fault Detection, Protection and Control Jointly, Kunming University of Science and TechnologyThe Faculty of Electric Power Engineering, Kunming University of Science and TechnologyThe State Key Laboratory of Collaborative Innovation Center for Smart Grid Fault Detection, Protection and Control Jointly, Kunming University of Science and TechnologyThe State Key Laboratory of Collaborative Innovation Center for Smart Grid Fault Detection, Protection and Control Jointly, Kunming University of Science and TechnologyThe Faculty of Electric Power Engineering, Kunming University of Science and TechnologyThe State Key Laboratory of Collaborative Innovation Center for Smart Grid Fault Detection, Protection and Control Jointly, Kunming University of Science and TechnologyAbstract Lightning represents the primary threat to power grids, with approximately 80% of natural occurrences being multi-lightning strikes, which have been extensively studied and confirmed to pose even more severe hazards. Hybrid DC circuit breakers (DCCBs) exhibit promising application prospects due to their superior interruption performance. During multi-lightning strikes, lightning intrusive waves pose a greater threat to the insulation of equipment such as hybrid DC fuses, fast mechanical switches, and insulated gate bipolar transistors. Therefore, this paper establishes a simulation model using the Real-Time Digital Simulator based on the model and parameters of the DCCB in the ± 500 kV Zhangbei HVDC project in China. It analyzes the lightning intrusive waves on the DCCB and investigates the energy absorption of metal oxide varistors (MOVs) in the energy-consuming branch of the DCCB under multi-lightning strikes, as well as the overvoltage levels of various branches of the DCCB under such conditions. The research results indicate that the energy-consuming branch has a certain tolerance to multi-lightning strikes. However, if the MOV collapses under multi-lightning strikes, it can lead to severe overvoltage issues. Therefore, the design and selection of DCCBs should fully consider the impact of multi-lightning strikes.https://doi.org/10.1038/s41598-025-86284-5Multi-terminal flexible DC gridDC circuit breakerMulti-lightningLightning overvoltage |
| spellingShingle | Yutao Tang Hongchun Shu Kai He Yue Dai Yu Kuang Yiming Han Weijie Lou Multi-terminal flexible DC grid circuit breaker withstands multi-lightning strike analysis Scientific Reports Multi-terminal flexible DC grid DC circuit breaker Multi-lightning Lightning overvoltage |
| title | Multi-terminal flexible DC grid circuit breaker withstands multi-lightning strike analysis |
| title_full | Multi-terminal flexible DC grid circuit breaker withstands multi-lightning strike analysis |
| title_fullStr | Multi-terminal flexible DC grid circuit breaker withstands multi-lightning strike analysis |
| title_full_unstemmed | Multi-terminal flexible DC grid circuit breaker withstands multi-lightning strike analysis |
| title_short | Multi-terminal flexible DC grid circuit breaker withstands multi-lightning strike analysis |
| title_sort | multi terminal flexible dc grid circuit breaker withstands multi lightning strike analysis |
| topic | Multi-terminal flexible DC grid DC circuit breaker Multi-lightning Lightning overvoltage |
| url | https://doi.org/10.1038/s41598-025-86284-5 |
| work_keys_str_mv | AT yutaotang multiterminalflexibledcgridcircuitbreakerwithstandsmultilightningstrikeanalysis AT hongchunshu multiterminalflexibledcgridcircuitbreakerwithstandsmultilightningstrikeanalysis AT kaihe multiterminalflexibledcgridcircuitbreakerwithstandsmultilightningstrikeanalysis AT yuedai multiterminalflexibledcgridcircuitbreakerwithstandsmultilightningstrikeanalysis AT yukuang multiterminalflexibledcgridcircuitbreakerwithstandsmultilightningstrikeanalysis AT yiminghan multiterminalflexibledcgridcircuitbreakerwithstandsmultilightningstrikeanalysis AT weijielou multiterminalflexibledcgridcircuitbreakerwithstandsmultilightningstrikeanalysis |