Adaptive DC grid fault reclosing scheme using second-order TET-corrected Reconstructed-traveling-waves
Half-bridge modular multilevel converter (HBMMC) based direct current (DC) grids, using overhead lines and DC circuit breakers (CBs), face an urgent demand for selective reclosing methods due to the high DC line fault-probability and the limited overcurrent-tolerance of power electronic equipment. E...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-09-01
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| Series: | International Journal of Electrical Power & Energy Systems |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0142061525004016 |
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| author | Yu Wang Zhiying Quan Ziyi Tan Jianqiao Zhang Bing Chen Ning Tong Xiaomei Wu |
| author_facet | Yu Wang Zhiying Quan Ziyi Tan Jianqiao Zhang Bing Chen Ning Tong Xiaomei Wu |
| author_sort | Yu Wang |
| collection | DOAJ |
| description | Half-bridge modular multilevel converter (HBMMC) based direct current (DC) grids, using overhead lines and DC circuit breakers (CBs), face an urgent demand for selective reclosing methods due to the high DC line fault-probability and the limited overcurrent-tolerance of power electronic equipment. Existing methods, which enhanced reclosing performance, still face challenges such as safety concerns, dead zones, sensitivity, and dependence on communication. To address the safety issue, this paper reveals the mechanism by which the operational sequence of the direct current circuit breaker (DCCB) transfer branch influences overcurrent. Furthermore, a transfer branch operational sequence is designed to strictly avoid the overcurrent during the reclosing process. Regarding the dead zone and sensitivity problems, the low-frequency component of the local voltage measurement generated after signal injection is corrected using the second-order transient extraction transform (TET). The time-domain traveling wave characteristic, i.e. the reconstructed measurement local voltage (RMLV), is then compared with the reconstructed theoretical local voltage (RTLV), enabling the discrimination of fault nature using a low setting threshold. Case studies indicate that the proposed method can discriminate the fault nature of the DC line to be reclosed without relying on communication, eliminates dead zones, and demonstrates a 300-ohms’ resistive coverage along the entire DC line. |
| format | Article |
| id | doaj-art-4100a6dcd44e43c9828b7e1992637234 |
| institution | DOAJ |
| issn | 0142-0615 |
| language | English |
| publishDate | 2025-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Electrical Power & Energy Systems |
| spelling | doaj-art-4100a6dcd44e43c9828b7e19926372342025-08-20T03:03:46ZengElsevierInternational Journal of Electrical Power & Energy Systems0142-06152025-09-0117011085310.1016/j.ijepes.2025.110853Adaptive DC grid fault reclosing scheme using second-order TET-corrected Reconstructed-traveling-wavesYu Wang0Zhiying Quan1Ziyi Tan2Jianqiao Zhang3Bing Chen4Ning Tong5Xiaomei Wu6School of Automation, Guangdong University of Technology, Guangzhou 510006, PR ChinaSchool of Automation, Guangdong University of Technology, Guangzhou 510006, PR ChinaSchool of Automation, Guangdong University of Technology, Guangzhou 510006, PR ChinaSchool of Automation, Guangdong University of Technology, Guangzhou 510006, PR ChinaElectric power Research Institute, Jiangsu Electric Power Co., LTD., State Grid, Nanjing 211103, PR ChinaSchool of Automation, Guangdong University of Technology, Guangzhou 510006, PR ChinaSchool of Automation, Guangdong University of Technology, Guangzhou 510006, PR China; Corresponding author at: School of Automation, Guangdong University of Technology, Guangzhou 510006, PR China.Half-bridge modular multilevel converter (HBMMC) based direct current (DC) grids, using overhead lines and DC circuit breakers (CBs), face an urgent demand for selective reclosing methods due to the high DC line fault-probability and the limited overcurrent-tolerance of power electronic equipment. Existing methods, which enhanced reclosing performance, still face challenges such as safety concerns, dead zones, sensitivity, and dependence on communication. To address the safety issue, this paper reveals the mechanism by which the operational sequence of the direct current circuit breaker (DCCB) transfer branch influences overcurrent. Furthermore, a transfer branch operational sequence is designed to strictly avoid the overcurrent during the reclosing process. Regarding the dead zone and sensitivity problems, the low-frequency component of the local voltage measurement generated after signal injection is corrected using the second-order transient extraction transform (TET). The time-domain traveling wave characteristic, i.e. the reconstructed measurement local voltage (RMLV), is then compared with the reconstructed theoretical local voltage (RTLV), enabling the discrimination of fault nature using a low setting threshold. Case studies indicate that the proposed method can discriminate the fault nature of the DC line to be reclosed without relying on communication, eliminates dead zones, and demonstrates a 300-ohms’ resistive coverage along the entire DC line.http://www.sciencedirect.com/science/article/pii/S0142061525004016DC gridAuto-reclosingDC circuit breakerResistive tolerance |
| spellingShingle | Yu Wang Zhiying Quan Ziyi Tan Jianqiao Zhang Bing Chen Ning Tong Xiaomei Wu Adaptive DC grid fault reclosing scheme using second-order TET-corrected Reconstructed-traveling-waves International Journal of Electrical Power & Energy Systems DC grid Auto-reclosing DC circuit breaker Resistive tolerance |
| title | Adaptive DC grid fault reclosing scheme using second-order TET-corrected Reconstructed-traveling-waves |
| title_full | Adaptive DC grid fault reclosing scheme using second-order TET-corrected Reconstructed-traveling-waves |
| title_fullStr | Adaptive DC grid fault reclosing scheme using second-order TET-corrected Reconstructed-traveling-waves |
| title_full_unstemmed | Adaptive DC grid fault reclosing scheme using second-order TET-corrected Reconstructed-traveling-waves |
| title_short | Adaptive DC grid fault reclosing scheme using second-order TET-corrected Reconstructed-traveling-waves |
| title_sort | adaptive dc grid fault reclosing scheme using second order tet corrected reconstructed traveling waves |
| topic | DC grid Auto-reclosing DC circuit breaker Resistive tolerance |
| url | http://www.sciencedirect.com/science/article/pii/S0142061525004016 |
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