| 引用本文: | 迟永宁,席迅,薛安成,刘宏志,黄阮明.海上风电全直流并网关键技术研究综述[J].电力自动化设备,2025,45(12):3-14. |
| CHI Yongning,XI Xun,XUE Ancheng,LIU Hongzhi,HUANG Ruanming.Review of key technologies research of all-DC grid integration for offshore wind power[J].Electric Power Automation Equipment,2025,45(12):3-14. |
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| 摘要: |
| 海上风电全直流输电系统具有系统结构简单、损耗低、输电能力强等显著优势，被视为极具潜力的下一代深远海风电高效送出技术，但其工程化应用仍受关键设备性能与系统控制保护难题的限制。梳理了直流风机、DC/DC变换器等直流输电关键设备的实现方案与优选拓扑；开展了直流汇集系统组网方式比对，并归纳了相应的控制与保护技术；探讨了全直流并网系统在故障穿越、振荡抑制、频率支撑方面的关键技术挑战与发展趋势；给出了未来研究重点，亟需在新型拓扑、构网控制与稳定分析方面开展深入研究。从根本上提升海上风电全直流送出系统技术方案的可靠性、经济性与电网支撑能力，并为后续大规模复杂全直流输电系统的研究提供理论参考与技术支撑。 |
| 关键词: 海上风电 直流汇集 全直流系统 主动支撑 |
| DOI：10.16081/j.epae.202511002 |
| 分类号: |
| 基金项目:智能电网国家科技重大专项(2024ZD0801300) |
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| Review of key technologies research of all-DC grid integration for offshore wind power |
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CHI Yongning1, XI Xun1,2, XUE Ancheng2, LIU Hongzhi1, HUANG Ruanming3
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1.China Electric Power Research Institute, Beijing 100192, China;2.School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China;3.State Grid Shanghai Municipal Electric Power Company, Shanghai 200122, China
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| Abstract: |
| The all-DC power transmission system for offshore wind power has the obvious advantages such as simple system structure, low loss, high transmission capacity, and is regarded as a highly promising next-generation solution for efficient long-distance offshore wind power integration. However, the engineering application still limited by the performance of key equipment and the system control protection problems. The implementation schemes and preferred topologies of key components for all-DC transmission system inclu-ding DC wind turbines and DC/DC converters are sorted out. The comparison of grid integrated schemes for DC collection system is conducted, and the corresponding control and protection strategies are summarized. The critical technical challenges and development trends of all-DC grid-connected system in fault ride-through, oscillation suppression and frequency support are discussed. The priorities of future researches are introduced, emphasizing the need for in-depth studies on novel topologies, grid-forming control strategies, and stability analysis. The reliability, cost-effectiveness and grid support ability of all-DC transmission solutions for offshore wind power are fundamentally improved, and the theoretical references and technical support are provided for the following large-scale complex researches on all-DC transmission system. |
| Key words: offshore wind power DC collection all-DC system grid support |
