高电压技术2026，Vol.52Issue(3)：1124-1134,中插10-中插12,14.DOI:10.13336/j.1003-6520.hve.20250581
海缆参数对海上风电柔性直流送端系统模式谐振的影响
Impact of Submarine Cable Parameters on Modal Resonance in Offshore Wind Power VSC-HVDC Sending-end System
摘要
Abstract
Traditional research on modal resonance has primarily focused on renewable energy connected to grid systems in terrestrial applications.However,the offshore wind power VSC-HVDC system exhibits significant parameter differ-ences between submarine cables and overhead transmission lines,necessitating clarification of the influence mechanism of submarine cable parameters on system modal resonance.We investigated the interaction between wind turbine grid-side converter(GSC)and VSC-HVDC converters,and examined the impact patterns of submarine cable capacitance and reactance on modal resonance.Moreover,we elucidated the resonant interaction between grid-following controlled GSC and grid-forming controlled VSC-HVDC converters,and establised analytical mapping relationships among subma-rine cable capacitance/inductance parameters,open-loop modes,and their residues.Critical discoveries indicate that submarine cable capacitance modifies system modal resonance through resonance intensity variation and open-loop mode displacement,thus the oscillation damping is in nonlinear characteristics in VSC-HVDC system,and submarine cable in-ductance amplifies resonance intensity via residue mechanisms;meanwhile,elevated parameters will intensify the resonance severity and degrade system damping.Time-domain simulations confirm theoretical predictions.Therefore,these distinct mechanisms,contrasting fundamentally with overhead transmission lines behaviors,demand pro-ject-specific submarine cable parameter evaluations for effective modal resonance mitigation.关键词
海上风电/海缆/柔性直流输电/模式谐振/特征根/小干扰稳定性Key words
offshore wind power/submarine cable/VSC-HVDC/modal resonance/eigenvalue/small signal stability引用本文复制引用
张一鸣,宾子君,付强,李鹏,孔祥平..海缆参数对海上风电柔性直流送端系统模式谐振的影响[J].高电压技术,2026,52(3):1124-1134,中插10-中插12,14.基金项目
国家自然科学基金(52407129) （52407129）
国家电网公司科技项目(4000-202318081A-1-1-ZN) （4000-202318081A-1-1-ZN）
四川省科技计划(2025YFHZ0234). Project supported by National Natural Science Foundation of China(52407129),Science and Technology Project of SGCC(4000-202318081A-1-1-ZN),Sci-ence and Technology Program of Sichuan Province(2025YFHZ0234). （2025YFHZ0234）
