STUDY ON IMPACT OF MOORING SYSTEM ON DYNAMICRESPONSE OF FLOATING WIND TURBINE PLATFORM

Liu Gongpeng; Gao Yifeng; Ai Congfang

doi:10.19912/j.0254-0096.tynxb.2025-0395

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (7) : 174-180. DOI: 10.19912/j.0254-0096.tynxb.2025-0395

STUDY ON IMPACT OF MOORING SYSTEM ON DYNAMICRESPONSE OF FLOATING WIND TURBINE PLATFORM

Liu Gongpeng¹, Gao Yifeng², Ai Congfang²

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Abstract

To assess the restraint capabilities of the mooring system on the OC-4 DeepCwind wind turbine platform, a simulation-based investigation was carried out to analyze the motion response of the OC-4 wind turbine system when subjected to the combined effects of wind and waves. The study focused on exploring the impact of various heavy blocks, floating blocks, and mid-section cable configurations on the platform's dynamic response and mooring loads. Using the original catenary mooring as a benchmark, the roles of different influencing factors within the wind turbine system were comparatively analyzed through calculations utilizing the FAST and AQWA's wind-wave-elastic coupling framework （F2A）. The findings reveal that incorporating heavy blocks into the mooring system can diminish the platform's low-frequency response, effectively curbing the amplitude of platform motion in multiple directions. Although adding floating blocks to the mooring system can mitigate platform motion and mooring loads in certain directions, it significantly increases the amplitude of motion and mooring loads in the remaining directions. By strategically coordinating the placement of heavy and floating blocks, it is possible to simultaneously mitigate the platform's low-frequency response and high-frequency resonance phenomenon.

Key words

offshore wind power / wind turbines / mooring cables / dynamic response / mooring force / numerical simulation / wind-wave coupling

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Liu Gongpeng, Gao Yifeng, Ai Congfang. STUDY ON IMPACT OF MOORING SYSTEM ON DYNAMICRESPONSE OF FLOATING WIND TURBINE PLATFORM[J]. Acta Energiae Solaris Sinica. 2026, 47(7): 174-180 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0395

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