Multi-terminal Flexible DC Transmission System for Offshore Wind Power and Its DC Fault Clearance Scheme

MA Xiuda; LU Yu; ZHAN Changjiang; JIANG Chongxue; DONG Yunlong; HUANG Ruhai

doi:10.7500/AEPS20241227002

您当前的位置：

首页 >

文章列表页 >

Multi-terminal Flexible DC Transmission System for Offshore Wind Power and Its DC Fault Clearance Scheme

Key Technologies for Offshore Wind Power System | 更新时间：2025-09-25

- Multi-terminal Flexible DC Transmission System for Offshore Wind Power and Its DC Fault Clearance Scheme
- Automation of Electric Power Systems Vol. 49, Issue 17, Pages: 81-89(2025)
- 作者机构：
  
  南京南瑞继保电气有限公司，江苏省南京市 211102
- 作者简介：
- 基金信息：
  
  State Grid Corporation of China(5100-202349004A-1-1-ZN)
- DOI：10.7500/AEPS20241227002
  CLC：
- Received：27 December 2024，
  
  Revised：2025-04-03，
  
  Published Online：06 June 2025，
  
  Published：10 September 2025
- 稿件说明：
移动端阅览
马秀达,卢宇,詹长江等.海上风电多端柔性直流输电系统及直流故障处理方案[J].电力系统自动化,2025,49(17):81-89.

MA Xiuda,LU Yu,ZHAN Changjiang,et al.Multi-terminal Flexible DC Transmission System for Offshore Wind Power and Its DC Fault Clearance Scheme[J].Automation of Electric Power Systems,2025,49(17):81-89.
马秀达,卢宇,詹长江等.海上风电多端柔性直流输电系统及直流故障处理方案[J].电力系统自动化,2025,49(17):81-89. DOI： 10.7500/AEPS20241227002.

MA Xiuda,LU Yu,ZHAN Changjiang,et al.Multi-terminal Flexible DC Transmission System for Offshore Wind Power and Its DC Fault Clearance Scheme[J].Automation of Electric Power Systems,2025,49(17):81-89. DOI： 10.7500/AEPS20241227002.

摘要

海上风电多端柔性直流输电系统可实现多电源供电和多落点送电，在陆上通过直流架空线送至负荷中心以提高沿海地区输电走廊利用率，是未来大规模远海风电并网的高效经济方案。文中介绍了海上风电多端柔性直流输电系统的拓扑结构和主设备配置方案，从可靠性、经济性和灵活性角度对该方案进行了系统适应性介绍。针对系统的直流架空线路故障、永久故障以及中性线故障，充分发挥直流断路器、半桥子模块换流器、快速开关和交流开关的技术特点，结合各故障特性给出了详细的故障处理方案，以实现系统的快速直流故障隔离和恢复。基于PSCAD/EMTDC 仿真平台，搭建了5端双极海上风电并网系统，通过稳态运行以及各直流故障验证了所提方案的可行性。

Abstract

The multi-terminal flexible DC transmission system for offshore wind power can achieve power supply from multiple sources to multiple landing points. It can be transmitted to the load center through onshore DC overhead lines to improve the utilization rate of transmission corridors in coastal areas. It is an efficient and economic solution for the large-scale far-offshore wind power grid connection in the future. This paper introduces the topology and main equipment configuration scheme of the multi-terminal flexible DC transmission system for offshore wind power

and the system adaptability is introduced from the perspectives of reliability

economy and flexibility. In response to DC overhead line faults

permanent faults

and neutral line faults in the system

the technical characteristics of DC circuit breakers

half-bridge submodule converters

high-speed switches

and AC circuit breakers are fully utilized

and the detailed fault clearance schemes are given by combining the characteristics of each fault

to achieve rapid DC fault isolation and recovery of the system. Based on the PSCAD/EMTDC simulation platform

a five-terminal bipolar offshore wind power grid-connected system is built

and the feasibility of the proposed scheme is verified through steady-state operation and various DC faults.

关键词

Keywords

references

IEA： renewables 2024 ［EB/OL］. ［ 2024-08-30 ］. https：//iea.blob.core.windows.net/assets/17033b62-07a5-4144-8dd0-651cdb6caa24/Renewables2024.pdf https://iea.blob.core.windows.net/assets/17033b62-07a5-4144-8dd0-651cdb6caa24/Renewables2024.pdf .

徐政 . 海上风电送出主要方案及其关键技术问题［J］. 电力系统自动化， 2022 ， 46 （ 21 ）： 1 - 10 .

XU Zheng . Main schemes and key technical problems for grid integration of offshore wind farm ［J］. Automation of Electric Power Systems ， 2022 ， 46 （ 21 ）： 1 - 10 .

杨光亚 . 欧洲海上风电工程实践回顾及未来技术展望［J］. 电力系统自动化， 2021 ， 45 （ 21 ）： 23 - 32 .

YANG Guangya . Review on engineering practices and future technology prospects of European offshore wind power ［J］. Automation of Electric Power Systems ， 2021 ， 45 （ 21 ）： 23 - 32 .

BANGAR A ， KUMAR A ， CHACON F ， et al . ±525 kV 2 GW bipole VSC-HVDC offshore transmission （TenneT projects）—key design aspects ［C］// CIGRE ， August 25-30 ， 2024 ， Paris， France .

刘卫东，李奇南，王轩，等 . 大规模海上风电柔性直流输电技术应用现状和展望［J］. 中国电力， 2020 ， 53 （ 7 ）： 55 - 71 .

LIU Weidong ， LI Qinan ， WANG Xuan ， et al . Application status and prospect of VSC-HVDC technology for large-scale offshore wind farms ［J］. Electric Power ， 2020 ， 53 （ 7 ）： 55 - 71 .

蔡希鹏，邹常跃，彭发喜，等 . 超大规模海上风电海陆一体直流输电技术探讨［J］. 电网技术， 2024 ， 48 （ 7 ）： 2895 - 2901 .

CAI Xipeng ， ZOU Changyue ， PENG Faxi ， et al . Discussion on HVDC transmission technology for super-large scale offshore wind power under offshore-onshore integration ［J］. Power System Technology ， 2024 ， 48 （ 7 ）： 2895 - 2901 .

Tennet： energy future “made in Europe”： multiterminal hubs as an important building block for realizing the climate-neutral grid ［EB/OL］. ［ 2024-08-30 ］. https：//www.tennet.eu/news/energy-future-made-europe-multiterminal-hubs-important-building-block-realising-climate https://www.tennet.eu/news/energy-future-made-europe-multiterminal-hubs-important-building-block-realising-climate .

中国南方电网 . 阳江三山岛海上风电柔直输电工程获核准，将采用海陆一体柔性直流输电技术破解海上风电深远海送出难题［EB/OL］.［ 2024-08-30 ］. https：//www.csg.cn/xwzx/2024/gsyw/202408/t20240806_342007.htm https://www.csg.cn/xwzx/2024/gsyw/202408/t20240806_342007.htm .

China Southern Power Grid . The Yangjiang Sanshan Island offshore wind power flexible direct current transmission project has been approved， which will use offshore-onshore integrated flexible direct current transmission technology to solve the problem of offshore wind power transmission from deep sea to distant sea ［EB/OL］. ［ 2024-08-30 ］. https：//www.csg.cn/xwzx/2024/gsyw/202408/t20240806_342007.htm https://www.csg.cn/xwzx/2024/gsyw/202408/t20240806_342007.htm .

许树楷，周月宾，杨柳，等 . 应用于远距离架空线直流输电的混合MMC直流故障清除方式比较分析［J］. 南方电网技术， 2022 ， 16 （ 2 ）： 3 - 13 .

XU Shukai ， ZHOU Yuebin ， YANG Liu ， et al . Analysis and comparison of the fault-clearing approaches for hybrid MMCs in HVDC system with long-distance overhead lines ［J］. Southern Power System Technology ， 2022 ， 16 （ 2 ）： 3 - 13 .

郭猛，郝全睿，李东 . 混合型MMC的改进桥臂平均值与状态空间模型［J］. 电力系统自动化， 2023 ， 47 （ 19 ）： 116 - 127 .

GUO Meng ， HAO Quanrui ， LI Dong . Improved arm average and state-space models of hybrid modular multilevel converter ［J］. Automation of Electric Power Systems ， 2023 ， 47 （ 19 ）： 116 - 127 .

LI B ， MAO Q Y ， HE J W ， et al . Adaptive reclosing strategy for the mechanical DC circuit breaker in VSC-HVDC grid ［J］. Electric Power Systems Research ， 2021 ， 192 ： 107008 .

陈力绪，袁帅，严俊，等 . 考虑多端协同的柔性直流电网直流故障保护和恢复策略［J］. 中国电机工程学报， 2022 ， 42 （ 22 ）： 8164 - 8177 .

CHEN Lixu ， YUAN Shuai ， YAN Jun ， et al . DC fault protection and recovery strategy for VSC-HVDC grid considering multi-terminal cooperation ［J］. Proceedings of the CSEE ， 2022 ， 42 （ 22 ）： 8164 - 8177 .

涂睿，向往，郑双燕，等 . 基于直流大母线的大规模海上风电混合多端直流并网系统［J/OL］. 电网技术： 1 - 12 ［ 2024-11-30 ］. https：//www.cnki.com.cn/Article/CJFDTotal-DWJS20241025008.htm https://www.cnki.com.cn/Article/CJFDTotal-DWJS20241025008.htm .

TU Rui ， XIANG Wang ， ZHENG Shuangyan ， et al . Hybrid multi-terminal HVDC integrated system for large-scale offshore wind farms based on DC bus ［J/OL］. Power System Technology ： 1 - 12 ［ 2024-11-30 ］. https：//www.cnki.com.cn/Article/CJFDTotal-DWJS20241025008.htm https://www.cnki.com.cn/Article/CJFDTotal-DWJS20241025008.htm .

HART D ， FOOTE C ， MOUHAIDALI A ， et al . DC circuit breaker feasibility study—protection system design ［C］// CIGRE ， August 25-30 ， 2024 ， Paris， France .

章浅诺，张哲任，金砚秋，等 . 适用于超大规模海上风电并网的直流送出系统［J］. 电力自动化设备， 2025 ， 45 （ 1 ）： 106 - 114 .

ZHANG Qiannuo ， ZHANG Zheren ， JIN Yanqiu ， et al . DC transmission system suitable for ultra-large-scale offshore wind power grid-connected system ［J］. Electric Power Automation Equipment ， 2025 ， 45 （ 1 ）： 106 - 114 .

杨立敏，朱艺颖，孙栩，等 . 基于损耗分析的全桥型MMC参数优化设计［J］. 电力自动化设备， 2020 ， 40 （ 3 ）： 128 - 133 .

YANG Limin ， ZHU Yiying ， SUN Xu ， et al . Optimization design of full bridge MMC parameters based on loss analysis ［J］. Electric Power Automation Equipment ， 2020 ， 40 （ 3 ）： 128 - 133 .

MODEER T ， NEE H P ， NORRGA S . Loss comparison of different sub-module implementations for modular multilevel converters in HVDC applications ［C］// Proceedings of the 14th European Conference on Power Electronics and Applications ， August 30-September 1 ， 2011 ， Birmingham， UK ： 1 - 7 .

石巍，曹冬明，杨兵，等 . 500 kV整流型混合式高压直流断路器［J］. 电力系统自动化， 2018 ， 42 （ 7 ）： 102 - 107 .

SHI Wei ， CAO Dongming ， YANG Bing ， et al . 500 kV commutation-based hybrid HVDC circuit breaker ［J］. Automation of Electric Power Systems ， 2018 ， 42 （ 7 ）： 102 - 107 .

魏争，文卫兵，杨勇，等 . 500 kV直流断路器快速机械开关典型故障特性及可靠性提升方法研究［J］. 全球能源互联网， 2023 ， 6 （ 1 ）： 54 - 63 .

WEI Zheng ， WEN Weibing ， YANG Yong ， et al . Research on typical fault characteristics and reliability improvement methods of high-speed mechanical switch used in 500 kV DC circuit breaker ［J］. Journal of Global Energy Interconnection ， 2023 ， 6 （ 1 ）： 54 - 63 .

KUMAR A ， CHACON F ， OLALQUIAGA-SAN-EMETERIO M ， et al . VSC-HVDC offshore interconnection converter stations—key design aspects ［C］// CIGRE B4 ， August 21-25 ， 2023 ， Vienna， Austria .

马向辉，张梓铭，吴冇，等 . 2 GW海上风电对称单极与对称双极柔直送出方案技术经济性对比［J］. 南方电网技术， 2024 ， 18 （ 2 ）： 30 - 38 .

MA Xianghui ， ZHANG Ziming ， WU Mao ， et al . Technical and economical comparisons of 2 GW offshore wind power transmission schemes by symmetrical monopole and symmetrical bipolar VSC-HVDC ［J］. Southern Power System Technology ， 2024 ， 18 （ 2 ）： 30 - 38 .

Tennet： ONL TTB-05415 T01 - 2 GW HVDC grid design and reliability availability［EB/OL］. ［ 2024-08-30 ］. https：//tennet-drupal.s3.eu-central-1.amazonaws.com/default/2023-04/TenneT_offshore_2GW-Program_Folder_en.pdf https://tennet-drupal.s3.eu-central-1.amazonaws.com/default/2023-04/TenneT_offshore_2GW-Program_Folder_en.pdf .

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

High-voltage Large-capacity DC Transformer Based on Flexible Commutation for Full-DC Offshore Wind Farm

Pilot Protection of Flexible DC Overhead Line Based on Characteristics of Fault Current Loop

Hybrid Cascaded HVDC Transmission System with Multiple Voltage Levels for Large-scale Offshore Wind Power

Related Author

LI Binbin

WANG Ning

ZHAO Xiaodong

LI Lei

XU Dianguo

SHAN Jieshan

REN Min

TIAN Xincui

Related Institution

School of Electrical Engineering and Automation, Harbin Institute of Technology

Faculty of Electric Power Engineering, Kunming University of Science and Technology

State Key Laboratory of Advanced Electromagnetic Engineering and Technology (Huazhong University of Science and Technology)

Guangdong Electric Power Design Institute Co., Ltd. of China Energy Engineering Group

College of Electrical Engineering, Zhejiang University

⁰