Integrated protection scheme for hybrid AC/DC transmission grids
Given the limited Right-of-Way (ROW) for transmission lines, AC and DC transmission lines are transferred in parallel and adjacent to each other, forming a hybrid AC/DC transmission overhead line system for the consumption of renewable energy. The system is affected by extreme weather or complex ext...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-08-01
|
| Series: | International Journal of Electrical Power & Energy Systems |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0142061525003540 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849329222087081984 |
|---|---|
| author | Qi Liu Xu Chu Letian Fu Shaoshuai Yu Weidong Wang |
| author_facet | Qi Liu Xu Chu Letian Fu Shaoshuai Yu Weidong Wang |
| author_sort | Qi Liu |
| collection | DOAJ |
| description | Given the limited Right-of-Way (ROW) for transmission lines, AC and DC transmission lines are transferred in parallel and adjacent to each other, forming a hybrid AC/DC transmission overhead line system for the consumption of renewable energy. The system is affected by extreme weather or complex external environment, which is easy to induce AC/DC intersystem fault (ISF). As a new fault type, the unique phenomenon and characteristics of ISF challenge the conventional protection concepts. This paper analyzes the fault characteristics of hybrid AC/DC transmission overhead line system based on “Yang-Zhen” project in China. And the focus is on AC/DC intersystem faults, i.e. galvanic contact between DC and AC systems. On this basis, a new integrated protection scheme of hybrid AC/DC transmission overhead lines which can adapt to ISF is proposed in this paper. The findings of this paper are based on semi-physical simulation platform with detailed RTDS-models of the hybrid AC/DC overhead lines and the LCC-converters. The proposed protection scheme tests have been conducted and confirmed the results. |
| format | Article |
| id | doaj-art-4792fde45dae48c59940a94586dc3caf |
| institution | Kabale University |
| issn | 0142-0615 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Electrical Power & Energy Systems |
| spelling | doaj-art-4792fde45dae48c59940a94586dc3caf2025-08-20T03:47:20ZengElsevierInternational Journal of Electrical Power & Energy Systems0142-06152025-08-0116911080610.1016/j.ijepes.2025.110806Integrated protection scheme for hybrid AC/DC transmission gridsQi Liu0Xu Chu1Letian Fu2Shaoshuai Yu3Weidong Wang4The College of Electrical and Information Engineering, Hunan University, Changsha 410082, ChinaCorresponding author.; The College of Electrical and Information Engineering, Hunan University, Changsha 410082, ChinaThe College of Electrical and Information Engineering, Hunan University, Changsha 410082, ChinaThe College of Electrical and Information Engineering, Hunan University, Changsha 410082, ChinaThe College of Electrical and Information Engineering, Hunan University, Changsha 410082, ChinaGiven the limited Right-of-Way (ROW) for transmission lines, AC and DC transmission lines are transferred in parallel and adjacent to each other, forming a hybrid AC/DC transmission overhead line system for the consumption of renewable energy. The system is affected by extreme weather or complex external environment, which is easy to induce AC/DC intersystem fault (ISF). As a new fault type, the unique phenomenon and characteristics of ISF challenge the conventional protection concepts. This paper analyzes the fault characteristics of hybrid AC/DC transmission overhead line system based on “Yang-Zhen” project in China. And the focus is on AC/DC intersystem faults, i.e. galvanic contact between DC and AC systems. On this basis, a new integrated protection scheme of hybrid AC/DC transmission overhead lines which can adapt to ISF is proposed in this paper. The findings of this paper are based on semi-physical simulation platform with detailed RTDS-models of the hybrid AC/DC overhead lines and the LCC-converters. The proposed protection scheme tests have been conducted and confirmed the results.http://www.sciencedirect.com/science/article/pii/S0142061525003540Hybrid AC/DC transmission overhead lineIntersystem faultIntegrated protection schemeRTDS |
| spellingShingle | Qi Liu Xu Chu Letian Fu Shaoshuai Yu Weidong Wang Integrated protection scheme for hybrid AC/DC transmission grids International Journal of Electrical Power & Energy Systems Hybrid AC/DC transmission overhead line Intersystem fault Integrated protection scheme RTDS |
| title | Integrated protection scheme for hybrid AC/DC transmission grids |
| title_full | Integrated protection scheme for hybrid AC/DC transmission grids |
| title_fullStr | Integrated protection scheme for hybrid AC/DC transmission grids |
| title_full_unstemmed | Integrated protection scheme for hybrid AC/DC transmission grids |
| title_short | Integrated protection scheme for hybrid AC/DC transmission grids |
| title_sort | integrated protection scheme for hybrid ac dc transmission grids |
| topic | Hybrid AC/DC transmission overhead line Intersystem fault Integrated protection scheme RTDS |
| url | http://www.sciencedirect.com/science/article/pii/S0142061525003540 |
| work_keys_str_mv | AT qiliu integratedprotectionschemeforhybridacdctransmissiongrids AT xuchu integratedprotectionschemeforhybridacdctransmissiongrids AT letianfu integratedprotectionschemeforhybridacdctransmissiongrids AT shaoshuaiyu integratedprotectionschemeforhybridacdctransmissiongrids AT weidongwang integratedprotectionschemeforhybridacdctransmissiongrids |