Research and application of new fast self-healing technology of distribution network based on line topology and beat frequency attenuation
The distribution network is frequently susceptible to various faults due to its complex structure and dynamic operating environment. Traditional fault-handling methods primarily rely on manual inspections and relay protection devices, which often result in prolonged power supply restoration times an...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-09-01
|
| Series: | Results in Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123025027082 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849390488930484224 |
|---|---|
| author | Wei Wang Kai Zhang Shixuan Lv Zhihong Zheng Guanliang Li Lu Bai |
| author_facet | Wei Wang Kai Zhang Shixuan Lv Zhihong Zheng Guanliang Li Lu Bai |
| author_sort | Wei Wang |
| collection | DOAJ |
| description | The distribution network is frequently susceptible to various faults due to its complex structure and dynamic operating environment. Traditional fault-handling methods primarily rely on manual inspections and relay protection devices, which often result in prolonged power supply restoration times and low self-healing recovery rates, failing to meet the high-reliability demands of modern power systems. To address these challenges, this paper proposes a novel fast self-healing technology for distribution networks based on line topology and beat frequency attenuation. The node identification is uniformly defined, and the electrical topology of the distribution network is represented using an equivalent topology diagram, enabling the construction of a multi-objective optimization model for network reconfiguration. The characteristics of low-frequency natural vibration components are analyzed, and a positive-sequence component control strategy is employed to regulate the output current of inverter-interfaced distributed generation (IIDG). Additionally, a redundant resource network structure model is developed to facilitate rapid power restoration for outage-affected loads. The proposed method is validated using the IEEE 33-node distribution network, which comprises 33 nodes and 37 switch-equipped branches. The reference voltage is set to 12.66 kV, with a three-phase power reference value of 10 MVA. The total load under the current operating condition is 5084.26 + j2547.32 kVA. The experimental results demonstrate that the proposed approach achieves a minimum node voltage of 12.16 kV, a time delay within 3 ms, a self-healing recovery rate exceeding 90 %, a reduced network loss of 122.7 kW, and an improved minimum node voltage of 0.9477 pu. |
| format | Article |
| id | doaj-art-415cbb257ed04880b49a047f09b74506 |
| institution | Kabale University |
| issn | 2590-1230 |
| language | English |
| publishDate | 2025-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj-art-415cbb257ed04880b49a047f09b745062025-08-20T03:41:36ZengElsevierResults in Engineering2590-12302025-09-012710664110.1016/j.rineng.2025.106641Research and application of new fast self-healing technology of distribution network based on line topology and beat frequency attenuationWei Wang0Kai Zhang1Shixuan Lv2Zhihong Zheng3Guanliang Li4Lu Bai5Corresponding author.; State Grid Shanxi Electric Power Research Institute, Taiyuan, 030001, ChinaState Grid Shanxi Electric Power Research Institute, Taiyuan, 030001, ChinaState Grid Shanxi Electric Power Research Institute, Taiyuan, 030001, ChinaState Grid Shanxi Electric Power Research Institute, Taiyuan, 030001, ChinaState Grid Shanxi Electric Power Research Institute, Taiyuan, 030001, ChinaState Grid Shanxi Electric Power Research Institute, Taiyuan, 030001, ChinaThe distribution network is frequently susceptible to various faults due to its complex structure and dynamic operating environment. Traditional fault-handling methods primarily rely on manual inspections and relay protection devices, which often result in prolonged power supply restoration times and low self-healing recovery rates, failing to meet the high-reliability demands of modern power systems. To address these challenges, this paper proposes a novel fast self-healing technology for distribution networks based on line topology and beat frequency attenuation. The node identification is uniformly defined, and the electrical topology of the distribution network is represented using an equivalent topology diagram, enabling the construction of a multi-objective optimization model for network reconfiguration. The characteristics of low-frequency natural vibration components are analyzed, and a positive-sequence component control strategy is employed to regulate the output current of inverter-interfaced distributed generation (IIDG). Additionally, a redundant resource network structure model is developed to facilitate rapid power restoration for outage-affected loads. The proposed method is validated using the IEEE 33-node distribution network, which comprises 33 nodes and 37 switch-equipped branches. The reference voltage is set to 12.66 kV, with a three-phase power reference value of 10 MVA. The total load under the current operating condition is 5084.26 + j2547.32 kVA. The experimental results demonstrate that the proposed approach achieves a minimum node voltage of 12.16 kV, a time delay within 3 ms, a self-healing recovery rate exceeding 90 %, a reduced network loss of 122.7 kW, and an improved minimum node voltage of 0.9477 pu.http://www.sciencedirect.com/science/article/pii/S2590123025027082Line topologyBeat attenuationDistribution networkRapid self-healingEquivalent topology diagramPositive sequence component |
| spellingShingle | Wei Wang Kai Zhang Shixuan Lv Zhihong Zheng Guanliang Li Lu Bai Research and application of new fast self-healing technology of distribution network based on line topology and beat frequency attenuation Results in Engineering Line topology Beat attenuation Distribution network Rapid self-healing Equivalent topology diagram Positive sequence component |
| title | Research and application of new fast self-healing technology of distribution network based on line topology and beat frequency attenuation |
| title_full | Research and application of new fast self-healing technology of distribution network based on line topology and beat frequency attenuation |
| title_fullStr | Research and application of new fast self-healing technology of distribution network based on line topology and beat frequency attenuation |
| title_full_unstemmed | Research and application of new fast self-healing technology of distribution network based on line topology and beat frequency attenuation |
| title_short | Research and application of new fast self-healing technology of distribution network based on line topology and beat frequency attenuation |
| title_sort | research and application of new fast self healing technology of distribution network based on line topology and beat frequency attenuation |
| topic | Line topology Beat attenuation Distribution network Rapid self-healing Equivalent topology diagram Positive sequence component |
| url | http://www.sciencedirect.com/science/article/pii/S2590123025027082 |
| work_keys_str_mv | AT weiwang researchandapplicationofnewfastselfhealingtechnologyofdistributionnetworkbasedonlinetopologyandbeatfrequencyattenuation AT kaizhang researchandapplicationofnewfastselfhealingtechnologyofdistributionnetworkbasedonlinetopologyandbeatfrequencyattenuation AT shixuanlv researchandapplicationofnewfastselfhealingtechnologyofdistributionnetworkbasedonlinetopologyandbeatfrequencyattenuation AT zhihongzheng researchandapplicationofnewfastselfhealingtechnologyofdistributionnetworkbasedonlinetopologyandbeatfrequencyattenuation AT guanliangli researchandapplicationofnewfastselfhealingtechnologyofdistributionnetworkbasedonlinetopologyandbeatfrequencyattenuation AT lubai researchandapplicationofnewfastselfhealingtechnologyofdistributionnetworkbasedonlinetopologyandbeatfrequencyattenuation |