Study on Dynamic Response of Floatover Installation of Topside of Offshore VSC-HVDC Converter Stations Under Eccentric Center of Gravity Conditions

GUO Baodong; HAO Weihan; XU Xinxin; WANG Jianwu; XIANG Jun; CAO Langheng; YIN Chuang; LUO Xiaolong; LUO Han; WU Haonan

doi:10.19805/j.cnki.jcspe.2025.250236

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Study on Dynamic Response of Floatover Installation of Topside of Offshore VSC-HVDC Converter Stations Under Eccentric Center of Gravity Conditions

更新时间：2026-10-10

- Study on Dynamic Response of Floatover Installation of Topside of Offshore VSC-HVDC Converter Stations Under Eccentric Center of Gravity Conditions
- Chinese Journal of Power Engineering Vol. 45, Issue 10, Pages: 1722-1729(2025)
- 作者机构：
  
  1. 三峡新能源阳江发电有限公司,广东,阳江,529500
  2. 中国能源建设集团广东省电力设计研究院有限公司,广东,广州,510663
  3. 中国长江三峡集团有限公司广东分公司,广东,广州,510330
  4. 广东阳江市创源海上风电综合投资有限公司,广东,阳江,529823
  5. 长江三峡投资管理有限公司,上海,200092
  6. 天津大学水利工程智能建设与运维全国重点实验室,天津,300350
- 作者简介：
- 基金信息：
- DOI：10.19805/j.cnki.jcspe.2025.250236
  CLC：
- Online First：25 June 2025，
  
  Published：2025
- 稿件说明：
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郭保东,郝为瀚,许新鑫,王建武,向君,曹浪恒,殷闯,罗晓龙,罗晗,吴浩南. 重心偏心效应下海上柔直换流站上部组块浮托安装动力响应研究动力工程学报, 2025, 45(10): 1722-1729 https://doi.

org/10.19805/j.cnki.jcspe.2025.250236
郭保东,郝为瀚,许新鑫,王建武,向君,曹浪恒,殷闯,罗晓龙,罗晗,吴浩南. 重心偏心效应下海上柔直换流站上部组块浮托安装动力响应研究动力工程学报, 2025, 45(10): 1722-1729 https://doi. DOI： 10.19805/j.cnki.jcspe.2025.250236.

org/10.19805/j.cnki.jcspe.2025.250236 DOI：

摘要

在海上能源项目建设领域

海上柔直换流站的建设规模不断扩大。在其上部组块浮托安装过程中

重心偏心效应可能对安装过程的动力响应产生较大影响。重点研究了重心偏心情况下海上柔直换流站上部组块浮托安装过程中的动力响应

利用OrcaFlex软件

选取5种不同工况进行数值模拟

分析船体和上部组块的运动响应规律

以及浮托安装过程中缓冲装置的受力情况。结果表明:重心偏心程度不同

船体、上部组块的运动响应和缓冲装置受力差异明显。换流站上部组块存在重心偏移时

配平措施可有效减小船体运动响应

降低导管架桩腿对接单元受力不均和护舷冲击强度

为海上柔直换流站上部组块浮托安装工程提供了重要的参考依据

对推动海上能源建设的发展具有积极意义。

Abstract

In the field of offshore energy project construction

the construction scale of offshore voltage source converter-high voltage direct current (VSC-HVDC) converter station is continuously expanding. During the floatover installation of the topside

the eccentric center of gravity effect may have a great influence on the dynamic response of the installation process. Dynamic response of the topside of offshore VSC-HVDC converter station during the floatover installation process considering eccentric center of gravity was mainly studied. Five different conditions were selected for numerical simulation by using OrcaFlex software to analyze the motion response of the vessel and topside

and the load on the fender system during the floatover installation process. Results show that different degrees of eccentricity in the center of gravity result in obvious differences in both the force distribution on the fender system and the motion response of the vessel and topside. When the topside of converter station exhibits a center-of-gravity shift

balancing measures effectively reduce the motion response of the vessel

decrease the force imbalance of jacket pile leg mating units

and lower the fender impact intensity. It provides an important reference for the floatover installation project of the topside of offshore VSC-HVDC

which has positive significance for promoting the development of offshore energy construction.

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references

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