Control Strategy and Small Signal Stability Analysis of the Direct-Drive Wind Farm Transmitted Through the HC-HVdc System Under No Synchronous Power Support Conditions
The hybrid cascaded high voltage direct current (HC-HVDC) technology, which combines the advantages of the line commutated converter-based HVDC (LCC-HVDC) and the modular multilevel converter-based HVDC (MMC-HVDC) technologies, is one of the most cost-effective solutions for long-distance transmissi...
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IEEE
2025-01-01
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| Online Access: | https://ieeexplore.ieee.org/document/11005554/ |
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| author | Qin Wang Yongjie He Mengyao Xu Jincan Zeng Binghao He Rongfeng Deng Xi Liu Guori Huang Yuanzhe Zhu Minwei Liu |
| author_facet | Qin Wang Yongjie He Mengyao Xu Jincan Zeng Binghao He Rongfeng Deng Xi Liu Guori Huang Yuanzhe Zhu Minwei Liu |
| author_sort | Qin Wang |
| collection | DOAJ |
| description | The hybrid cascaded high voltage direct current (HC-HVDC) technology, which combines the advantages of the line commutated converter-based HVDC (LCC-HVDC) and the modular multilevel converter-based HVDC (MMC-HVDC) technologies, is one of the most cost-effective solutions for long-distance transmission of large-scale renewable energy. Therefore, a topology of the HC-HVDC transmission system is constructed in this paper for direct-drive wind farms in desert and gobi areas where there is no synchronous power support in the sending-end system. Then a grid-forming control strategy for the sending-end hybrid cascade converter is designed to provide AC voltage support. Besides, an active power balancing control strategy of the sending-end system based on the additional DC voltage control of the MMC is proposed to adapt to the stochastic fluctuation characteristics of wind power. After that, a small signal dynamic model of the whole system is established, and the influence of important parameters on the small signal stability of the system is analyzed. Finally, the time-domain simulations based on PSCAD/EMTDC confirm the correctness and validity of the proposed control strategies and the stability analysis conclusions. |
| format | Article |
| id | doaj-art-ec309526d85e4bb79f9aa4328afd3dbd |
| institution | DOAJ |
| issn | 2169-3536 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj-art-ec309526d85e4bb79f9aa4328afd3dbd2025-08-20T03:13:43ZengIEEEIEEE Access2169-35362025-01-0113886238863710.1109/ACCESS.2025.357038211005554Control Strategy and Small Signal Stability Analysis of the Direct-Drive Wind Farm Transmitted Through the HC-HVdc System Under No Synchronous Power Support ConditionsQin Wang0https://orcid.org/0009-0008-3773-0986Yongjie He1Mengyao Xu2Jincan Zeng3Binghao He4Rongfeng Deng5https://orcid.org/0000-0001-9330-4174Xi Liu6https://orcid.org/0000-0003-4886-2876Guori Huang7Yuanzhe Zhu8Minwei Liu9Energy Development Research Institute, China Southern Power Grid Company Ltd., Guangzhou, ChinaChina State Electric Power Dispatching Center, State Grid Corporation of China, Beijing, ChinaDigital Grid Research Institute, China Southern Power Grid Company Ltd., Guangzhou, ChinaEnergy Development Research Institute, China Southern Power Grid Company Ltd., Guangzhou, ChinaEnergy Development Research Institute, China Southern Power Grid Company Ltd., Guangzhou, ChinaEnergy Development Research Institute, China Southern Power Grid Company Ltd., Guangzhou, ChinaEnergy Development Research Institute, China Southern Power Grid Company Ltd., Guangzhou, ChinaEnergy Development Research Institute, China Southern Power Grid Company Ltd., Guangzhou, ChinaEnergy Development Research Institute, China Southern Power Grid Company Ltd., Guangzhou, ChinaPlanning and Research Center for Power Grid, Yunnan Power Grid Corporation, Kunming, ChinaThe hybrid cascaded high voltage direct current (HC-HVDC) technology, which combines the advantages of the line commutated converter-based HVDC (LCC-HVDC) and the modular multilevel converter-based HVDC (MMC-HVDC) technologies, is one of the most cost-effective solutions for long-distance transmission of large-scale renewable energy. Therefore, a topology of the HC-HVDC transmission system is constructed in this paper for direct-drive wind farms in desert and gobi areas where there is no synchronous power support in the sending-end system. Then a grid-forming control strategy for the sending-end hybrid cascade converter is designed to provide AC voltage support. Besides, an active power balancing control strategy of the sending-end system based on the additional DC voltage control of the MMC is proposed to adapt to the stochastic fluctuation characteristics of wind power. After that, a small signal dynamic model of the whole system is established, and the influence of important parameters on the small signal stability of the system is analyzed. Finally, the time-domain simulations based on PSCAD/EMTDC confirm the correctness and validity of the proposed control strategies and the stability analysis conclusions.https://ieeexplore.ieee.org/document/11005554/Hybrid cascaded converterdirect drive wind farmgrid forming controlsmall signal stabilityhigh voltage direct current |
| spellingShingle | Qin Wang Yongjie He Mengyao Xu Jincan Zeng Binghao He Rongfeng Deng Xi Liu Guori Huang Yuanzhe Zhu Minwei Liu Control Strategy and Small Signal Stability Analysis of the Direct-Drive Wind Farm Transmitted Through the HC-HVdc System Under No Synchronous Power Support Conditions IEEE Access Hybrid cascaded converter direct drive wind farm grid forming control small signal stability high voltage direct current |
| title | Control Strategy and Small Signal Stability Analysis of the Direct-Drive Wind Farm Transmitted Through the HC-HVdc System Under No Synchronous Power Support Conditions |
| title_full | Control Strategy and Small Signal Stability Analysis of the Direct-Drive Wind Farm Transmitted Through the HC-HVdc System Under No Synchronous Power Support Conditions |
| title_fullStr | Control Strategy and Small Signal Stability Analysis of the Direct-Drive Wind Farm Transmitted Through the HC-HVdc System Under No Synchronous Power Support Conditions |
| title_full_unstemmed | Control Strategy and Small Signal Stability Analysis of the Direct-Drive Wind Farm Transmitted Through the HC-HVdc System Under No Synchronous Power Support Conditions |
| title_short | Control Strategy and Small Signal Stability Analysis of the Direct-Drive Wind Farm Transmitted Through the HC-HVdc System Under No Synchronous Power Support Conditions |
| title_sort | control strategy and small signal stability analysis of the direct drive wind farm transmitted through the hc hvdc system under no synchronous power support conditions |
| topic | Hybrid cascaded converter direct drive wind farm grid forming control small signal stability high voltage direct current |
| url | https://ieeexplore.ieee.org/document/11005554/ |
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