Resonance Avoidance Control Algorithm for Semi-Submersible Floating Offshore Wind Turbine

Kwansu Kim, Hyunjong Kim, Hyungyu Kim, Jaehoon Son, Jungtae Kim and Jongpo Park
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Kwansu Kim: Center for Green Energy & Industry Intelligence, Institute for Advanced Engineering, Yongin 17180, Korea
Hyunjong Kim: Center for Green Energy & Industry Intelligence, Institute for Advanced Engineering, Yongin 17180, Korea
Hyungyu Kim: Center for Green Energy & Industry Intelligence, Institute for Advanced Engineering, Yongin 17180, Korea
Jaehoon Son: Center for Green Energy & Industry Intelligence, Institute for Advanced Engineering, Yongin 17180, Korea
Jungtae Kim: Center for Green Energy & Industry Intelligence, Institute for Advanced Engineering, Yongin 17180, Korea
Jongpo Park: Center for Green Energy & Industry Intelligence, Institute for Advanced Engineering, Yongin 17180, Korea

Energies, 2021, vol. 14, issue 14, 1-17

Abstract: In this study, a resonance avoidance control algorithm was designed to address the tower resonance problem of a semi-submersible floating offshore wind turbine (FOWT) and the dynamic performance of the wind turbine, floater platform, and mooring lines at two exclusion zone ranges were evaluated. The simulations were performed using Bladed, a commercial software for wind turbine analysis. The length of simulation for the analysis of the dynamic response of the six degrees of freedom (DoF) motion of the floater platform under a specific load case was 3600 s. The simulation results are presented in terms of the time domain, frequency domain, and using statistical analysis. As a result of applying the resonance avoidance control algorithm, when the exclusion zone range was ±0.5 rpm from the resonance rpm, the overall performance of the wind turbine was negatively affected, and when the range was sufficiently wide at ±1 rpm, the mean power was reduced by 0.04%, and the damage equivalent load of the tower base side–side bending moment was reduced by 14.02%. The tower resonance problem of the FOWT caused by practical limitations in design and cost issues can be resolved by changing the torque control algorithm.

Keywords: floating offshore wind turbine; exclusion zone; resonance frequency; resonance avoidance; control algorithm; load reduction; damage equivalent load (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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