Research on start-up control strategy of series-type all-DC offshore wind power system

PENG Ang; CHEN Jianfei; HUANG Ruanming; CHEN Zhe; WANG Chaowei; HE Yigang

doi:10.11930/j.issn.1004-9649.202609007

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Research on start-up control strategy of series-type all-DC offshore wind power system

更新时间：2026-10-14

- Research on start-up control strategy of series-type all-DC offshore wind power system
- Vol. 59, Issue 9, Pages: 289-298(2026)
- 作者机构：
  
  1. 武汉大学电气与自动化学院,湖北,武汉,430072
  2. 国网上海市电力公司经济技术研究院
  3. 国网上海市电力公司电力科学研究院,上海,200437
- 作者简介：
- 基金信息：
  
  This work is supported by National Major Special Project for Smart Grid (2030) (No.2024ZD0801300)
- DOI：10.11930/j.issn.1004-9649.202609007
  CLC：
- Published：2026
- 稿件说明：
移动端阅览
彭昂, 陈剑飞, 黄阮明, 等. 适用于串联型全直流海上风电系统的启动控制策略[J]. 中国电力, 2026, 59(9): 289−298.

PENG Ang, CHEN Jianfei, HUANG Ruanming, et al. Research on start-up control strategy of series-type all-DC offshore wind power system[J]. 2026, 59(9): 289-298.
彭昂, 陈剑飞, 黄阮明, 等. 适用于串联型全直流海上风电系统的启动控制策略[J]. 中国电力, 2026, 59(9): 289−298. DOI： 10.11930/j.issn.1004-9649.202609007

PENG Ang, CHEN Jianfei, HUANG Ruanming, et al. Research on start-up control strategy of series-type all-DC offshore wind power system[J]. 2026, 59(9): 289-298. DOI： 10.11930/j.issn.1004-9649.202609007.

摘要

基于风机直流端口串联的全直流海上风电系统能够有效降低海上平台体积和线路损耗，具有广阔的应用前景，然而目前针对海上风电系统的启动控制策略研究大多集中于传统交流汇集系统，针对串联型海上风电系统的启动控制策略研究尚存在空白。为此提出一种适用于该系统的“分阶段-逐台启动”控制策略，将全系统启动过程划分为陆上换流站、海上直流-直流（direct current to direct current，DC/DC）变换器和直流风电场3个阶段。为抑制风电机组启动过程中面临的转矩和功率冲击，同时考虑到风机直流端口绝缘耐压水平，在风电机组启动初期由风速差异确定最低功率给定值，以减小风机端口电压的不均衡。在Matlab/Simulink搭建全系统仿真模型，验证了所提策略的有效性，实现了直流风电场的逐台启动。

Abstract

The all-DC offshore wind power system based on series-connected DC ports of wind turbines can effectively reduce the size of offshore platforms and line losses

and it has broad application prospects. However

current research on startup control strategies for offshore wind power systems mostly focuses on traditional AC collection systems

and there's still a gap when it comes to startup control strategies for series-type offshore wind power systems. To address this

a 'staged-step-by-step' startup control strategy suitable for this system is proposed

dividing the full system startup process into three stages: onshore converter station

offshore DC/DC

and DC wind farm. To avoid torque and power shocks during wind turbine startup

and considering the insulation voltage level of the turbine DC ports

the minimum power setpoint is determined based on wind speed differences at the initial startup stage to reduce voltage imbalance at the turbine ports. The effectiveness of the proposed strategy was verified through a full system simulation model built in Matlab/Simulink

ultimately achieving step-by-step startup of the DC wind farm.

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