Scholarlink

<p>The design of floating wind turbines (FWTs) requires comprehensive consideration of complex marine environments and coupled responses among various components. The efficiency of current time domain simulation methods remains insufficient for design and optimization in the early stages of FWT development. This study validates a proposed frequency domain (FD) modeling method through code-to-experiment comparison. The FD method incorporates fundamental assumptions about the FWT model, including representing the FWT tower as a nonlinear beam and modeling the rotor-nacelle assembly (RNA) and floating platform as rigid bodies positioned at each end of the tower. The method incorporates excitation loads using blade element momentum theory, linear potential flow theory, and quasi-static catenary theory for aerodynamic, hydrodynamic, and mooring dynamics, respectively. Validation involves a code-to-experiment comparison through a basin model test utilizing a 1/50 scaled semi-submersible platform equipped with a 5MW wind turbine. The results demonstrate strong correlation with experimental data regarding mean response and power spectral density of platform and nacelle motions. The overall discrepancy for these physical quantities remains below 10%. Specifically, the mean discrepancy of platform surge and pitch motions under combined wind and wave conditions measures 1.05% and 3.91%, respectively. This validation confirms the viability of the proposed FD method, offering substantial technical support for early-phase analysis and optimization of FWT. The validation results contribute significantly to advancing FWT design and optimization understanding.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Experimental Validation of a Fully Coupled Frequency-Domain Method for Global Response Analysis of Floating Wind Turbines

  • 期刊论文

  • 发表日期：

    2026年4月1日

查看全文
  • Peng Chen,
  • Chang-en Li,
  • Shi Deng,
  • Zheng-shun Cheng,
  • Gareth Erfort,
  • Zhi-qiang Hu

摘要

The design of floating wind turbines (FWTs) requires comprehensive consideration of complex marine environments and coupled responses among various components. The efficiency of current time domain simulation methods remains insufficient for design and optimization in the early stages of FWT development. This study validates a proposed frequency domain (FD) modeling method through code-to-experiment comparison. The FD method incorporates fundamental assumptions about the FWT model, including representing the FWT tower as a nonlinear beam and modeling the rotor-nacelle assembly (RNA) and floating platform as rigid bodies positioned at each end of the tower. The method incorporates excitation loads using blade element momentum theory, linear potential flow theory, and quasi-static catenary theory for aerodynamic, hydrodynamic, and mooring dynamics, respectively. Validation involves a code-to-experiment comparison through a basin model test utilizing a 1/50 scaled semi-submersible platform equipped with a 5MW wind turbine. The results demonstrate strong correlation with experimental data regarding mean response and power spectral density of platform and nacelle motions. The overall discrepancy for these physical quantities remains below 10%. Specifically, the mean discrepancy of platform surge and pitch motions under combined wind and wave conditions measures 1.05% and 3.91%, respectively. This validation confirms the viability of the proposed FD method, offering substantial technical support for early-phase analysis and optimization of FWT. The validation results contribute significantly to advancing FWT design and optimization understanding.