高电压技术2026，Vol.52Issue(9)：4060-4069,中插1-中插3,13.DOI:10.13336/j.1003-6520.hve.20260574
海上风电经CSC-MMC混合直流送出系统及其控制策略
Offshore Wind Power Delivery System via CSC-MMC Hybrid DC and Its Control Strategy
摘要
Abstract
An offshore wind power transmission scheme based on an active-commutated current-source convert-er-modular multilevel converter(CSC-MMC)hybrid HVDC link is a promising solution for DC export of offshore wind farms.The offshore converter station employs a CSC to reduce platform volume and weight while regulating the offshore AC bus voltage and frequency.The onshore station adopts a hybrid half-/full-bridge MMC,providing both negative DC voltage capability and frequency support for the receiving grid.This paper first investigates the operating characteristics of the proposed system and compares it with alternative offshore HVDC export schemes,demonstrating favorable tech-no-economic potentials.Subsequently,a mathematical model is developed,steady-state control strategies are designed,and a black-start scheme tailored to the hybrid system is proposed.A communication-free coordinated control strategy is then presented,in which receiving-end frequency variations are conveyed via DC voltage,enabling active frequency support.Finally,PSCAD/EMTDC simulations under black-start,rated operation,wind-speed fluctuations,and sudden load increases validate the feasibility and effectiveness of the proposed scheme and controls.关键词
海上风电送出方案/混合直流输电/稳态控制策略/黑启动策略/频率支撑Key words
offshore wind power delivery scheme/hybrid DC power transmission/steady-state control strategy/start-up strategy/inertia support引用本文复制引用
熊小玲,丁子迅,王胜威,李浩,王岩,赵成勇..海上风电经CSC-MMC混合直流送出系统及其控制策略[J].高电压技术,2026,52(9):4060-4069,中插1-中插3,13.基金项目
国家自然科学基金联合基金(U23B20119).Project supported by Joint Funds of National Natural Science Foundation of China(U23B20119). （U23B20119）
