Structural load inversion and state analysis of floating wind turbine tower based on joint input-state estimation

Chao WANG; Minghao CUI; Nan ZHOU; Peng CHEN; Zhengshun CHENG

doi:10.19693/j.issn.1673-3185.03885

Chinese Journal of Ship Research, Volume. 19, Issue 4, 167(2024)

Structural load inversion and state analysis of floating wind turbine tower based on joint input-state estimation

Chao WANG1...2, Minghao CUI1,2,3, Nan ZHOU1,2,4, Peng CHEN1,2,3, and Zhengshun CHENG1,23 |Show fewer author(s)

Author Affiliations

¹State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

²School of Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

³Yazhou Bay Institute of Deepsea Science and Technology, Shanghai Jiao Tong University, Sanya 572024, China

⁴Offshore Oil Engineering Co. Ltd., Tianjin 300459, China

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Abstract Get PDF(in Chinese)

Objective

This study uses the structural load inversion method to conduct a dynamic response state analysis of a floating wind turbine tower under wave action.

Method

Based on a semi-submersible wind turbine, the measurement data is simulated in the time domain, and the mass-normalized modes of the tower are calculated using a frequency-domain simulation model of the floating wind turbine. Both are used as inputs to a joint input-state estimation (JIS) algorithm to conduct the structural load inversion and real-time state analysis of the floating wind turbine tower.

Results

The results show that when using the simulated data of tower nodes as inputs to the JIS algorithm, the estimated tower root loads and node responses agree well with the simulated results, achieving high-precision inversion.

Conclusion

The inversion results verify that the JIS algorithm is effective and can be used for the real-time state analysis of floating wind turbines to ensure their long-term safe and stable operation.

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Keywords

floating wind turbine joint input-state estimation real-time state analysis structural load inversion

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Chao WANG, Minghao CUI, Nan ZHOU, Peng CHEN, Zhengshun CHENG. Structural load inversion and state analysis of floating wind turbine tower based on joint input-state estimation[J]. Chinese Journal of Ship Research, 2024, 19(4): 167

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