About this Research Topic
Wind energy production has experienced remarkable growth in the past decade. According to Global Wind Energy Council (GWEC), the worldwide installations of wind turbines in 2020 surpassed 90 GW, a 53% growth compared to 2019. This has brought the total installed wind capacity to 743 GW which is 14% more compared to the last year. In addition, more wind turbines are being installed farther from the coasts due to the stronger and steadier wind in the marine area. To efficiently exploit wind resources, larger wind turbines with higher ratings and larger blades have become top priority choices. With the size increment of wind turbine structures, the flexibility of the structure will increase which will cause vibration issues. The vibrations on different wind turbine components will cause fatigue damage and adversely influence system performance.
Structural vibration control techniques which have been successfully used in civil structures such as high-rise buildings can be used to reduce the vibrations of wind turbines. The structural controlling approaches can be mainly divided into four categories: (1) passive, (2) active, (3) hybrid and (4)semi-active. These controlling techniques can be used in different parts of wind turbines such as blades, towers, and platforms to reduce vibrations. Reducing the vibrations of the wind turbine blades, tower and platform will result in increasing the fatigue life of the wind turbines along with increasing the energy efficiency.
The present Research Topic goal is to collect contributions to the developments of structural vibration control of wind turbines. Prospective authors are invited to submit high-quality original contributions and reviews for this Research Topic.
The present Research Topic will cover, but is not limited to, the following aspects:
• Passive, active and semi-active controlling techniques;
• Novel controlling techniques of blade vibrations;
• Recent implementations and applications of controllers in reducing responses of fixed-bottom and floating offshore wind turbines.
Keywords: Offshore wind turbines, Multiple Hazards, Active control, Passive control, Semi-active control
Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.