An Analytical Calculation Method for Total Transfer Capability of Transmission Section Based on Evaluation of System Short Circuit Capability
In the HVDC sending-end system, the system's short-circuit capacity is mainly provided by conventional generating units. When the operating mode of conventional generating units changes and the short-circuit capacity changes, it will have a significant impact on the system's safety and sta...
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| Format: | Article |
| Language: | zho |
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State Grid Energy Research Institute
2025-03-01
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| Series: | Zhongguo dianli |
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| Online Access: | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202402004 |
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| author | Yao LIU Ziheng LI Zixuan ZHENG Donghui SONG Xiaoteng LI Ding ZHANG Jie REN Qi XIE |
| author_facet | Yao LIU Ziheng LI Zixuan ZHENG Donghui SONG Xiaoteng LI Ding ZHANG Jie REN Qi XIE |
| author_sort | Yao LIU |
| collection | DOAJ |
| description | In the HVDC sending-end system, the system's short-circuit capacity is mainly provided by conventional generating units. When the operating mode of conventional generating units changes and the short-circuit capacity changes, it will have a significant impact on the system's safety and stability characteristics. The existing section total transfer capability calculation methods often ignore the key variable of short-circuit capacity when verifying the system's safety and stability, which may lead to calculation errors. Therefore, this paper proposes a section total transfer capability analytical calculation method based on short-circuit capacity evaluation. Firstly, the system security and stability constraints considering the short-circuit capacity are constructed. Then, the contribution index of conventional generating units to the system's short-circuit capacity is proposed, and a section total transfer capability analytical calculation method is proposed based on this index. Finally, taking a certain power grid in Northwest China as an example, the effectiveness of this method is verified through case analysis in the power system analysis and simulation program. |
| format | Article |
| id | doaj-art-9d6f05c821c04ed9b539eadc73078b79 |
| institution | Kabale University |
| issn | 1004-9649 |
| language | zho |
| publishDate | 2025-03-01 |
| publisher | State Grid Energy Research Institute |
| record_format | Article |
| series | Zhongguo dianli |
| spelling | doaj-art-9d6f05c821c04ed9b539eadc73078b792025-08-20T03:44:28ZzhoState Grid Energy Research InstituteZhongguo dianli1004-96492025-03-015839810710.11930/j.issn.1004-9649.202402004zgdl-58-04-liuyaoAn Analytical Calculation Method for Total Transfer Capability of Transmission Section Based on Evaluation of System Short Circuit CapabilityYao LIU0Ziheng LI1Zixuan ZHENG2Donghui SONG3Xiaoteng LI4Ding ZHANG5Jie REN6Qi XIE7Electric Power Research Institute of State Grid Shaanxi Electric Power Co., Ltd., Xi'an 710100, ChinaState Grid Shaanxi Electric Power Co., Ltd., Xi'an 710048, ChinaCollege of Electrical Engineering, Sichuan University, Chengdu 610065, ChinaCollege of Electrical Engineering, Sichuan University, Chengdu 610065, ChinaElectric Power Research Institute of State Grid Shaanxi Electric Power Co., Ltd., Xi'an 710100, ChinaState Grid Shaanxi Electric Power Co., Ltd., Xi'an 710048, ChinaCollege of Electrical Engineering, Sichuan University, Chengdu 610065, ChinaCollege of Electrical Engineering, Sichuan University, Chengdu 610065, ChinaIn the HVDC sending-end system, the system's short-circuit capacity is mainly provided by conventional generating units. When the operating mode of conventional generating units changes and the short-circuit capacity changes, it will have a significant impact on the system's safety and stability characteristics. The existing section total transfer capability calculation methods often ignore the key variable of short-circuit capacity when verifying the system's safety and stability, which may lead to calculation errors. Therefore, this paper proposes a section total transfer capability analytical calculation method based on short-circuit capacity evaluation. Firstly, the system security and stability constraints considering the short-circuit capacity are constructed. Then, the contribution index of conventional generating units to the system's short-circuit capacity is proposed, and a section total transfer capability analytical calculation method is proposed based on this index. Finally, taking a certain power grid in Northwest China as an example, the effectiveness of this method is verified through case analysis in the power system analysis and simulation program.https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202402004transmission sectionshort-circuit capacitystart-up modetotal transfer capabilitypower-angle stabilitytransient overvoltage |
| spellingShingle | Yao LIU Ziheng LI Zixuan ZHENG Donghui SONG Xiaoteng LI Ding ZHANG Jie REN Qi XIE An Analytical Calculation Method for Total Transfer Capability of Transmission Section Based on Evaluation of System Short Circuit Capability Zhongguo dianli transmission section short-circuit capacity start-up mode total transfer capability power-angle stability transient overvoltage |
| title | An Analytical Calculation Method for Total Transfer Capability of Transmission Section Based on Evaluation of System Short Circuit Capability |
| title_full | An Analytical Calculation Method for Total Transfer Capability of Transmission Section Based on Evaluation of System Short Circuit Capability |
| title_fullStr | An Analytical Calculation Method for Total Transfer Capability of Transmission Section Based on Evaluation of System Short Circuit Capability |
| title_full_unstemmed | An Analytical Calculation Method for Total Transfer Capability of Transmission Section Based on Evaluation of System Short Circuit Capability |
| title_short | An Analytical Calculation Method for Total Transfer Capability of Transmission Section Based on Evaluation of System Short Circuit Capability |
| title_sort | analytical calculation method for total transfer capability of transmission section based on evaluation of system short circuit capability |
| topic | transmission section short-circuit capacity start-up mode total transfer capability power-angle stability transient overvoltage |
| url | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202402004 |
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