Control of a Floating Wind Turbine on a Novel Actuated Platform

Stockhouse, David; Phadnis, Mandar; Grant, Elenya; Johnson, Kathryn; Damiani, Rick; Pao, Lucy Y.

doi:10.23919/acc53348.2022.9867498

Cited by 12 publications

(17 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Various types of mass dampers have been proposed to be installed at the turbine nacelle, tower, or the floating platform, for structural vibration dissipation in the designed bandwidth [30,31], while the cost and reliability of these vibration absorbers are still barriers for further promotions. For semisubmersible FOWTs, it is also possible to actively redistribute the water ballast among different columns to reduce the average platform pitch motion [32]. This approach will help alleviate tower structural loads and increase below-rated power absorption due to the smaller platform tilting angle [33].…”

Section: Of 24mentioning

confidence: 99%

Catenary Mooring Length Control for Motion Mitigation of Semi-Submersible Floating Wind Turbines

Zhou,

Zhang,

Chen

et al. 2024

JMSE

View full text Add to dashboard Cite

Besides improving the generator torque and blade pitch controller, incorporating additional control actuations, such as a vibration absorber and active ballast, into the floating offshore wind turbine (FOWT) system is also promising for the motion mitigation of FOWTs. This work aims to study the catenary mooring length re-configuration effect on the dynamic behaviours of semi-submersible FOWTs. The mooring length re-configuration mentioned here is achieved by altering the mooring length with winches mounted on the floating platform, which is in a period of minutes to hours, so that the mooring tensions could be adjusted to reduce the aerodynamic load induced platform mean pitch. Control designs for both single mooring line and multiple mooring lines have been described and studied comparatively. In order to assess the motion mitigation performance of the proposed mooring line length re-configuration methods, fully coupled numerical simulations under different environmental cases have been conducted. Results indicate that the catenary mooring length re-configuration is able to reduce the platform pitch motion by up to 15.8% under rated condition, while careful attention must be paid to the scenarios where the catenary moorings become taut, which may lead to large load variations.

show abstract

Section: Of 24mentioning

confidence: 99%

Catenary Mooring Length Control for Motion Mitigation of Semi-Submersible Floating Wind Turbines

Zhou,

Zhang,

Chen

et al. 2024

JMSE

View full text Add to dashboard Cite

show abstract

“…This so-called constant-power control law typically leads to increased variations in generator speed while improving power quality. Details on corresponding control laws can be found in [17,36].…”

Section: Baseline Control -Above-rated Control Approachesmentioning

confidence: 99%

“…Due to FOWT dynamics, power gains from dynamic motion are difficult to realize, but power losses due to mean platform pitch are wellknown. • indicates the mean platform pitch for USFLOWT [21], and * indicates the optimal mean platform pitch ϕ ptfm = −ϕ shaft . linearization or through system identification [48].…”

Section: Floating Wind Turbine Dynamicsmentioning

confidence: 99%

“…Since FOWTs are excited by both wind and waves and have more degrees of freedom (DOFs) than fixed-bottom turbines, it is important to analyze the dynamic coupling between the floating platform and the wind turbine. The development of multi-input, multi-output (MIMO) controllers can mitigate the coupling [17] and also allows for accommodating advanced actuation concepts of the floating platform [18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Sink or Swim: A Tutorial on the Control of Floating Wind Turbines

Stockhouse

Phadnis

Henry

et al. 2023

2023 American Control Conference (ACC)

Self Cite

View full text Add to dashboard Cite

show abstract

“…Currently, more than 50 different types of substructures for floating turbines are being developed in academia and industry alike [2]. Regardless of floater design one of the main challenges for floating wind is the interaction between conventional wind turbine control and the dynamics of the floating platform [3].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Floating Turbine Dynamics on the Helix Wake Mixing Method

Van Den Berg,

De Tavernier,

Gutknecht

et al. 2024

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

Wake mixing techniques like the Helix have shown to be effective at reducing the wake interaction between turbines, which improves wind farm power production. When these techniques are applied to a floating turbine it will excite movement. The type and magnitude of movement are dependent on floater dynamics. This work investigates four different floating turbines. Of these four turbines, two are optimised variants of the TripleSpar and Softwind platforms with enhanced yaw motion. The other two are the unaltered versions of these platforms. When the Helix is applied to all four floating turbines, the increased yaw motion of the optimised TripleSpar results in a reduction in windspeed whereas the optimised Softwind sees an increase in windspeed with increased yaw motion. From simulations using prescribed yaw motion at different phase offsets between blade pitch and yaw motion, we can conclude that this is the driving factor for this difference.

show abstract

Control of a Floating Wind Turbine on a Novel Actuated Platform

Cited by 12 publications

References 10 publications

Catenary Mooring Length Control for Motion Mitigation of Semi-Submersible Floating Wind Turbines

Catenary Mooring Length Control for Motion Mitigation of Semi-Submersible Floating Wind Turbines

Sink or Swim: A Tutorial on the Control of Floating Wind Turbines

The Influence of Floating Turbine Dynamics on the Helix Wake Mixing Method

Contact Info

Product

Resources

About