Optimisation en temps réel de la puissance générée par un parc éolien en présence d'effet de sillage

Abstract

The use of renewable energy has become more popular during the last decades. In addition, the wind power is one of the most used for the production of electrical energy. Because of the dynamic and unpredictable behaviour of the wind, several control techniques have been studied for optimizing the power extraction of wind turbines. However, the aerodynamic interaction between them, the wind turbulence and the direction of the upwind are not often considered in those studies even though they are known to reduce the electrical power produced by Wind farms. In the present study, the extremal seeking control multi-unit method have been used in simulation to track the maximum power point of a wind farm containing seven structurally identical turbines. Realistic scenarios including wake effect, several levels of turbulence and variable wind angles of attack have been considered in these simulations. Under the assumption of the Taylor frozen turbulence, with an angle of attack equal for all winds passing through the wind farm and using a dynamic turbine model, the simulation results showed that the multi-unit method allowed the maximum power point tracking for different levels of turbulences and for a variable wind’s angle of attack. The use of multi-unit method has been possible using a new objective function based on a normalized power and as well as a turbulence reader that allow a better tracking of the maximum power point of the wind farm under several levels of turbulences.

Date	11 Nov 2014
Original language	French
Awarding Institution	École de technologie supérieure
Supervisor	Lyne Woodward (Supervisor)