Environmental Engineering Reference
In-Depth Information
• Structural control of wind turbines based on SA MR dampers and on a base
restraint rearrangement of the tower looks feasible;
• Significant reduction of stresses in the turbine tower can be reached trading off
a minor increase of the top displacement. Due to the proposed control system,
however, displacements of the tower are only partly related to strain;
• Obviously, control algorithms play a relevant role in the behavior of the
controlled systems. However, in judging their performances the complexity and
the overall reliability of the system (number and type of sensors, real-time
computing effort needed) should be taken into account.
A further optimization of the response of a wind turbine can be envisioned by
considering the possibility of fully reshaping the modal behavior. The theoretical
base of such a strategy is also presented herein, based on the exploitation of more
than one independent control force. The possibility of adopting multiple SA MR
dampers in the structural control of wind turbines represents the next research step,
currently in progress, of the research activity.
References
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