Impact of pitch actuator fault on 10-MW semi-submersible floating wind turbine

Li, Jiawen; Bian, Jingyu; Chuang, Zhenju; Jiang, Yichen; Leng, Shudong

doi:10.1016/j.oceaneng.2022.111375

Cited by 8 publications

(7 citation statements)

References 19 publications

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“…Blade‐pitch rate can have a significant effect on the system dynamics and loads during fault and shutdown initiation 13,14 . Consequently, it is worth analyzing its parametric effect in more detail.…”

Section: Resultsmentioning

confidence: 99%

“…OO‐Star platform major geometrical and mooring system specifications in the top view (left) and side view (right) (lengths in meters) 14,32 …”

Section: Multi‐rotor Wind Turbine System (2wt)mentioning

confidence: 99%

“…30 Cut-in, rated rotor speed 6.9 rpm, 12.1 rpm F I G U R E 3 OO-Star platform major geometrical and mooring system specifications in the top view (left) and side view (right) (lengths in meters). 14,32 Development is carried out by means of the open-source platform OpenModelica. 37 Rigid body dynamics and full structural flexibility of blades and tower are implemented by means of the multi-body environment within the Modelica Standard Library (MSL).…”

Section: Multi-rotor Wind Turbine System (2wt)mentioning

confidence: 99%

“…Research dealing with the effect of faulted conditions on the dynamic response of FOWTs is available but limited 13–17 . Analysis of the NREL 5‐MW baseline wind turbine mounted on several floating platform types reported how blade‐pitch faults, grid loss, and emergency shutdown lead to a significant increase in the structural loads and motions of the system.…”

Section: Introductionmentioning

confidence: 99%

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Load response of a two‐rotor floating wind turbine undergoing blade‐pitch system faults

2023

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Multi‐rotor floating wind turbines are among the innovative technologies proposed in the last decade in the effort to reduce the cost of wind energy. These systems are able to offer advantages in terms of smaller blades deployed offshore, cheaper operations, fewer installations, and sharing of the floating platform. As the blade‐pitch actuation system is prone to failures, the assessment of the associated load scenarios is commonly required. Load assessment of blade‐pitch fault scenarios has only been performed for single‐rotor solutions. In this work, we address the effect of blade‐pitch system faults and emergency shutdown on the dynamics and loads of a two‐rotor floating wind turbine. The concept considered employs two NREL 5‐MW baseline wind turbines and the OO‐Star semi‐submersible platform. The blade‐pitch faults investigated are blade blockage and runaway, that is, the seizure at a given pitch angle and the uncontrolled actuation of one of the blades, respectively. Blade‐pitch faults lead to a significant increase in the structural loads of the system, especially for runaway fault conditions. Emergency shutdown significantly excites the platform pitch motion, the tower‐bottom bending moment, and tower torsional loads, while suppressing the faulty blade flapwise bending moment after a short peak. Shutdown delay between rotors increases significantly the maxima of the torsional loads acting on the tower. Comparison of blade loads with data from single‐rotor spar‐type study show great similarity, highlighting that the faulty blade loads are not affected by (1) the type of platform used and (2) the multi‐rotor deployment.

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Section: Resultsmentioning

confidence: 99%

“…OO‐Star platform major geometrical and mooring system specifications in the top view (left) and side view (right) (lengths in meters) 14,32 …”

Section: Multi‐rotor Wind Turbine System (2wt)mentioning

confidence: 99%

Section: Multi-rotor Wind Turbine System (2wt)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Load response of a two‐rotor floating wind turbine undergoing blade‐pitch system faults

2023

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“…NREL developed OpenFAST for the design of horizontal axis wind turbines (HAWT). OpenFAST is based on Kane's kinematic equation to solve coupled multi-body dynamics of the FOWT, considering aerodynamic loads, hydrodynamic loads, elastodynamic loads and mooring loads (Li et al, 2022). The preprocessing tool Turbsim (Jonkman and Buhl, 2006) is used to generate the three-dimensional synthetic turbulent wind field on a 31×31 square grid with a 145 m width based on the Kaimal spectral and exponential coherence model.…”

Section: Numerical Simulation Of Fowts Under Operational Conditionsmentioning

confidence: 99%

A novel multi-dimensional reliability approach for floating wind turbines under power production conditions

Xing

Gaidai

et al. 2022

Front. Mar. Sci.

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Floating offshore wind turbines (FOWT) generate green renewable energy and are a vital part of the modern offshore wind energy industry. Robust predicting extreme offshore loads during FOWT operations is an important safety concern. Excessive structural bending moments may occur during certain sea conditions, posing an operational risk of structural damage. This paper uses the FAST code to analyze offshore wind turbine structural loads due to environmental loads acting on a specific FOWT under actual local environmental conditions. The work proposes a unique Gaidai-Fu-Xing structural reliability approach that is probably best suited for multi-dimensional structural responses that have been simulated or measured over a long period to produce relatively large ergodic time series. In the context of numerical simulation, unlike existing reliability approaches, the novel methodology does not need to re-start simulation again each time the system fails. As shown in this work, an accurate forecast of the probability of system failure can be made using measured structural response. Furthermore, traditional reliability techniques cannot effectively deal with large dimensionality systems and cross-correction across multiple dimensions. The paper aims to establish a state-of-the-art method for extracting essential information concerning extreme responses of the FOWT through simulated time-history data. Three key components of structural loads are analyzed, including the blade-root out-of-plane bending moment, tower fore-aft bending moment, and mooring line tension. The approach suggested in this study allows predicting failure probability efficiently for a non-linear multi-dimensional dynamic system as a whole.

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Fault detection framework in wind turbine pitch systems using machine learning: Development, validation, and results

Filipe de Lima Munguba,

Villa Ochoa,

de Novaes Pires Leite

et al. 2024

Engineering Applications of Artificial Intelligence

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Impact of pitch actuator fault on 10-MW semi-submersible floating wind turbine

Cited by 8 publications

References 19 publications

Load response of a two‐rotor floating wind turbine undergoing blade‐pitch system faults

Load response of a two‐rotor floating wind turbine undergoing blade‐pitch system faults

A novel multi-dimensional reliability approach for floating wind turbines under power production conditions

Fault detection framework in wind turbine pitch systems using machine learning: Development, validation, and results

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