Large-scale Distant Offshore Wind DC System: Collection and Transmission Structure, Key Equipment and Corresponding Control

LIN Zhiguang; TANG Guangfu; GAO Chong; YUAN Yijia; TIAN Changgeng; LI Yuanzhen; WANG Xinying; WU Yilin

doi:10.13334/j.0258-8013.pcsee.250479

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Large-scale Distant Offshore Wind DC System: Collection and Transmission Structure, Key Equipment and Corresponding Control

更新时间：2026-09-28

- Large-scale Distant Offshore Wind DC System: Collection and Transmission Structure, Key Equipment and Corresponding Control
- Vol. 46, Issue 14, Pages: 5971-5986(2026)
- 作者机构：
  
  1. 1 华北电力大学电气与电子工程学院，北京市昌平区,102206
  2. 2 北京怀柔实验室，北京市怀柔区,101400
  3. 3 先进输电技术全国重点实验室(中国电力科学研究院有限公司)，北京市昌平区,102209
- 作者简介：
- 基金信息：
- DOI：10.13334/j.0258-8013.pcsee.250479
  CLC：
- Published：2026
- 稿件说明：
移动端阅览
LIN Zhiguang, TANG Guangfu, GAO Chong, et al. Large-scale Distant Offshore Wind DC System: Collection and Transmission Structure, Key Equipment and Corresponding Control[J]. 2026, 46(14): 5971-5986.
DOI：

LIN Zhiguang, TANG Guangfu, GAO Chong, et al. Large-scale Distant Offshore Wind DC System: Collection and Transmission Structure, Key Equipment and Corresponding Control[J]. 2026, 46(14): 5971-5986. DOI： 10.13334/j.0258-8013.pcsee.250479.

摘要

针对远海风电并网系统存在的投资成本高、运行损耗大及系统稳定性不足等问题，该文提出一种高效经济的远海风电全直流汇集送出系统方案。首先，详细阐述所提千兆瓦级全直流汇集送出系统结构，重点介绍适用于该系统的模块化多电平直流风机拓扑与桥臂复用型直流变压器拓扑。在此基础上，设计该系统方案的运行控制策略，并通过仿真与实验验证系统功能的可行性与有效性。最后，综合对比评估所提直流方案、海上柔性直流方案和低频交流方案。结果表明，所提全直流系统方案具有可观的经济性表现。

Abstract

Aiming at the issues of investment cost

operating losses and system stability of distant offshore wind power grid-connected system

this paper proposes a low-cost and high-efficiency distant offshore wind DC collection and transmission system. Firstly

this paper describes the structure of the proposed gigawatt-level DC collection and transmission system in detail

focusing on the modular multi-level DC turbine topology and the arm shared DC transformer topology applicable to this system. Then

the operating control strategy for this system is designed

followed by the feasibility and effectiveness of the system functions verified via simulations and experiments. Finally

a comprehensive comparison among the proposed DC system

the offshore flexible DC system and the low-frequency AC system is evaluated. The results reveal that the proposed DC system has considerable techno-economic performance.

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