Research on primary frequency regulation and VSC-HVDC frequency synchronization control coordination method for large-scale hydropower DC export regional grid
In asynchronous grid connection mode, the rotational inertia of the partitioned synchronized grid decreases, leading to prominent frequency stability issues. A bi-level optimization design method is proposed based on VSC-HVDC frequency synchronization control (VSC-FSC) and coordinated control of pri...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-07-01
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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/S0142061525002066 |
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| author | Hongchun Shu Huaibin Gao Zongxue Shao Yongzan Cui Wei Zhao |
| author_facet | Hongchun Shu Huaibin Gao Zongxue Shao Yongzan Cui Wei Zhao |
| author_sort | Hongchun Shu |
| collection | DOAJ |
| description | In asynchronous grid connection mode, the rotational inertia of the partitioned synchronized grid decreases, leading to prominent frequency stability issues. A bi-level optimization design method is proposed based on VSC-HVDC frequency synchronization control (VSC-FSC) and coordinated control of primary frequency regulation in hydropower. Additionally, to mitigate power counter-regulation caused by the water-hammer effect, an auxiliary control responsive to the water-hammer effect is introduced into the VSC-FSC. Firstly, the characteristics of VSC-FSC and primary frequency regulation of the power grid are analyzed. Then, based on the characteristics of VSC-FSC and its coordination with primary frequency regulation in hydropower, a bi-level optimization model for control parameters is constructed. An evolutionary algorithm is used to solve the optimal parameters hierarchically progressively. Finally, a simplified test system for the Luxi back-to-back HVDC and an improved 7-generator 36-node DC asynchronous extensive power grid system based on the IEEE standard model were developed in real-time digital simulation (RTDS) to validate the effectiveness of the proposed coordinated control method. |
| format | Article |
| id | doaj-art-a0565f1a20eb4f5fb710a0d4e2b20b01 |
| institution | Kabale University |
| issn | 0142-0615 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Electrical Power & Energy Systems |
| spelling | doaj-art-a0565f1a20eb4f5fb710a0d4e2b20b012025-08-20T03:49:41ZengElsevierInternational Journal of Electrical Power & Energy Systems0142-06152025-07-0116811065510.1016/j.ijepes.2025.110655Research on primary frequency regulation and VSC-HVDC frequency synchronization control coordination method for large-scale hydropower DC export regional gridHongchun Shu0Huaibin Gao1Zongxue Shao2Yongzan Cui3Wei Zhao4State Key Laboratory of Collaborative Innovation Center for Smart Grid Fault Detection, Protection and Control Jointly, (Kunming University of Science and Technology), Kunming 650500, China; Faculty of Electric Power Engineering Kunming University of Science and Technology, Kunming 650051 Yunnan Province, China; Faculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming 650500, ChinaState Key Laboratory of Collaborative Innovation Center for Smart Grid Fault Detection, Protection and Control Jointly, (Kunming University of Science and Technology), Kunming 650500, China; Faculty of Electric Power Engineering Kunming University of Science and Technology, Kunming 650051 Yunnan Province, ChinaState Key Laboratory of Collaborative Innovation Center for Smart Grid Fault Detection, Protection and Control Jointly, (Kunming University of Science and Technology), Kunming 650500, China; Faculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming 650500, China; Corresponding author.State Key Laboratory of Collaborative Innovation Center for Smart Grid Fault Detection, Protection and Control Jointly, (Kunming University of Science and Technology), Kunming 650500, China; Faculty of Electric Power Engineering Kunming University of Science and Technology, Kunming 650051 Yunnan Province, ChinaState Key Laboratory of Collaborative Innovation Center for Smart Grid Fault Detection, Protection and Control Jointly, (Kunming University of Science and Technology), Kunming 650500, China; Faculty of Electric Power Engineering Kunming University of Science and Technology, Kunming 650051 Yunnan Province, ChinaIn asynchronous grid connection mode, the rotational inertia of the partitioned synchronized grid decreases, leading to prominent frequency stability issues. A bi-level optimization design method is proposed based on VSC-HVDC frequency synchronization control (VSC-FSC) and coordinated control of primary frequency regulation in hydropower. Additionally, to mitigate power counter-regulation caused by the water-hammer effect, an auxiliary control responsive to the water-hammer effect is introduced into the VSC-FSC. Firstly, the characteristics of VSC-FSC and primary frequency regulation of the power grid are analyzed. Then, based on the characteristics of VSC-FSC and its coordination with primary frequency regulation in hydropower, a bi-level optimization model for control parameters is constructed. An evolutionary algorithm is used to solve the optimal parameters hierarchically progressively. Finally, a simplified test system for the Luxi back-to-back HVDC and an improved 7-generator 36-node DC asynchronous extensive power grid system based on the IEEE standard model were developed in real-time digital simulation (RTDS) to validate the effectiveness of the proposed coordinated control method.http://www.sciencedirect.com/science/article/pii/S0142061525002066VSC-FSCPrimary frequency controlBi-level optimizationWater-hammer effectCoordinated control |
| spellingShingle | Hongchun Shu Huaibin Gao Zongxue Shao Yongzan Cui Wei Zhao Research on primary frequency regulation and VSC-HVDC frequency synchronization control coordination method for large-scale hydropower DC export regional grid International Journal of Electrical Power & Energy Systems VSC-FSC Primary frequency control Bi-level optimization Water-hammer effect Coordinated control |
| title | Research on primary frequency regulation and VSC-HVDC frequency synchronization control coordination method for large-scale hydropower DC export regional grid |
| title_full | Research on primary frequency regulation and VSC-HVDC frequency synchronization control coordination method for large-scale hydropower DC export regional grid |
| title_fullStr | Research on primary frequency regulation and VSC-HVDC frequency synchronization control coordination method for large-scale hydropower DC export regional grid |
| title_full_unstemmed | Research on primary frequency regulation and VSC-HVDC frequency synchronization control coordination method for large-scale hydropower DC export regional grid |
| title_short | Research on primary frequency regulation and VSC-HVDC frequency synchronization control coordination method for large-scale hydropower DC export regional grid |
| title_sort | research on primary frequency regulation and vsc hvdc frequency synchronization control coordination method for large scale hydropower dc export regional grid |
| topic | VSC-FSC Primary frequency control Bi-level optimization Water-hammer effect Coordinated control |
| url | http://www.sciencedirect.com/science/article/pii/S0142061525002066 |
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