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<p>During the hoisting process of the offshore substation, changes in the hoisting speed can affect the hoisting system. Therefore, this study set four different speed conditions for the lifting and lowering stages of the installation process, and studied the impact of different lifting and lowering speeds on the hoisting system under the same environmental conditions through numerical simulation. The results show that during the lifting operation, as the lifting speed increases, the swing motion of the substation and the installation vessel tends to decrease, and the faster the hoisting speed, the more obvious the swing suppression of the substation and the installation vessel, and the smaller the fluctuation in the tension amplitude of the slings and mooring lines. In contrast, during the lowering operation, as the lowering speed increases, the swing motion of the substation and the installation vessel tends to increase, and the faster the lowering speed, the more obvious the swing amplification effect of the substation and the installation vessel. Therefore, during hoisting operations, increasing the lifting speed and reducing the lowering speed can mitigate the motion performance of the hoisting coupling system, reduce the tension amplitude variation of the sling and mooring, and ensure the smooth progress of the hoisting operation.</p>

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Coupled Dynamic Analysis of Offshore Wind Substation Hoisting Process Considering Variation of Hoisting Speed

  • 期刊论文

  • 发表日期：

    2026年1月23日

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  • Junqi Ren,
  • Conghuan Le,
  • Kai Wang,
  • Puyang Zhang,
  • Hongyan Ding

摘要

During the hoisting process of the offshore substation, changes in the hoisting speed can affect the hoisting system. Therefore, this study set four different speed conditions for the lifting and lowering stages of the installation process, and studied the impact of different lifting and lowering speeds on the hoisting system under the same environmental conditions through numerical simulation. The results show that during the lifting operation, as the lifting speed increases, the swing motion of the substation and the installation vessel tends to decrease, and the faster the hoisting speed, the more obvious the swing suppression of the substation and the installation vessel, and the smaller the fluctuation in the tension amplitude of the slings and mooring lines. In contrast, during the lowering operation, as the lowering speed increases, the swing motion of the substation and the installation vessel tends to increase, and the faster the lowering speed, the more obvious the swing amplification effect of the substation and the installation vessel. Therefore, during hoisting operations, increasing the lifting speed and reducing the lowering speed can mitigate the motion performance of the hoisting coupling system, reduce the tension amplitude variation of the sling and mooring, and ensure the smooth progress of the hoisting operation.