The role of wind turbine dampers

To relieve structural loads on floating wind turbines, Hu and He (2017) investigated the application of hybrid mass dampers (HMDs) with limits for vibration reduction in barge-type wind turbines. The researcher developed an active control model of the system, focusing on the effects of factors such as damper travel and power consumption.

The role of the pendulum-cable is to fix the mass block to the main structure of the OWT and to control its motion trajectory and amplitude. It counteracts the energy of the vibration excitation by bearing the inertial and centrifugal forces of the mass block. Application of spherical tuned liquid damper in vibration control of wind turbine .

According to the Global Wind Energy Council, the global increase in offshore wind power capacity installed in 2021 was 21.1 GW, more than three times that of 2020, setting a new record [1]. Monopile steel cylinder towers are the primary support structure for wind turbines. However, the thin-walled structure of monopile steel cylinder towers has .

Vibration damping in offshore wind turbines is a key parameter to predict reliably the dynamic response and fatigue life of these systems. Damping in an offshore wind turbine originates from different sources, mainly, aerodynamic, structural, hydrodynamic, and soil dampings.

They have performed numerical investigations and evaluated how the specific characteristics of the measurement system may influence the ability of the SA control technique to reduce the structural demand with respect to the fixed base configuration of the same wind turbine. The roles of sampling rate and latency are mainly investigated, with .

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6 FAQs about [The role of wind turbine dampers]

What is vibration damping in offshore wind turbines?

What causes damping in an offshore wind turbine?

Damping in an offshore wind turbine originates from different sources, mainly, aerodynamic, structural, hydrodynamic, and soil dampings. The difficulties in identifying the individual contribution from each damping source have led to considerable uncertainty and variation in the values recommended.

Do wind turbines need damping?

Damping in offshore and onshore wind turbines has been researched fairly extensively; however, the variations in published values for most damping sources remain large, and this directly translates into uncertainty in the prediction of the dynamic response and fatigue life of the system. As a result, designs may be unsafe or overly conservative.

Can rotational inertia dampers be used in floating wind turbines?

Rotational inertia dampers can greatly decrease torque but have yet to be widely employed in floating wind turbines. The purpose of this study is to review the latest improvements in offshore damping technology. The research results will provide characteristics and design references for future vibration damping of floating offshore wind turbines.

Do floating wind turbines need damping devices?

Floating wind turbines need damping devices to provide a stable working state and structural safety. Damping systems are often used for offshore floating constructions based on various operating principles and locations.

Do floating wind turbines have a vibration damping effect?

For floating wind turbines, Ghafari et al. (2022) developed a hybrid floating platform based on Wavestar. The effect of the diameter and damping coefficient of the wavstar on the vibration damping effect was tested. The structure includes a semi-submersible platform, deck, connecting arm, and wavestar (see Fig. 4 (a)).

The role of wind turbine dampers