Improved modelling of wake aerodynamics and assessment of new farm control strategies

In the paper two related subjects are discussed: 1) A new approach is presented to model the wake of a turbine. Keywords in this approach are computational effectiveness and a physical sound basis. The new approach is validated with wake measurements and generally shows a good agreement. 2) A new farm control strategy is explained which aims to reduce the wake effects and the associated power losses in a wind farm. The benefits from this control strategy are assessed with measurement results from ECN's research farm, EWTW and with calculations from the above mentioned wake model.