Wind energy cost minimization by wind turbine control adaptation to wind farm flow control

Wind energy demands significant space, leading to the grouping of wind turbines into farms with an increasing number of turbines. A drawback of densely packed wind farms is the aerodynamic interference between turbines, causing wake losses. To mitigate these losses, it is possible to slightly control, at least partially, the wind flow within the farm by acting on the aerodynamics of the turbine rotors, thereby modifying their wakes. This approach is known as wind farm control.

A barrier to the development of farm control on commercial wind farms is the concern about potential turbine damage from operating them under conditions which they were not designed for. This concern applies to both the actuated turbines, which may, for example, operate misaligned with the wind direction or underproduce, and to the non-actuated turbines situated in the wake of others, as they will experience altered wakes. The objective of this thesis is to study how individual turbine control can be adapted to minimize turbine deterioration under the aforementioned conditions, while setting a global objective of minimizing the cost of energy for the entire farm. This work will be conducted under the joint supervision of IFPEN and GIPSA-Lab. It follows a thesis on wind turbine control aimed at managing a fatigue trade-off between several turbine components, and several theses and studies on wind farm control. The student will develop optimal control and observation strategies, aiming at adapting control parameters to effectively minimize a criterion corresponding to the cost of wind energy. The outcomes of the thesis could eventually lead, if sufficiently advanced, to tests on a reduced-scale wind farm in a wind tunnel.

IFP Energies nouvelles is a French public-sector research, innovation and training center. Its mission is to
develop efficient, economical, clean and sustainable technologies in the fields of energy, transport and the
environment. For more information, see our WEB site https://www.ifpenergiesnouvelles.com/.
IFPEN offers a stimulating research environment, with access to first in class laboratory infrastructures and
computing facilities. IFPEN offers competitive salary and benefits packages. All PhD students have access to
dedicated seminars and training sessions. For more information, please see our dedicated WEB pages https://www.ifp-school.com/en/programs/phd-theses.

The candidate must have graduated from a master degree or an engineering school in mechanical engineering or applied mathematics, with an interest for control systems and optimization.

The candidate must be fluent in either French or English, and have the willingness to learn French.