Horizontal shear from combined nacelle lidars - Evaluation of the "fan scan" based on three combined nacelle lidars for advanced wind field characterisation

Torque Conference 2022 Poster for the conference proceeding with the same name: https://doi.org/10.1088/1742-6596/2265/2/022107 Nacelle mounted lidars (NML) are widely accepted and used in the wind energy community for various applications. To determine certain wind field parameters from radial measurements, a wind field reconstruction (WFR) algorithm is applied. Due to the limited information (“cyclops dilemma”) however, the WFR often lacks the reconstruction of certain parameters, such as the vertical wind speed or horizontal wind shear. We propose a combination of multiple NML to reconstruct these additional parameters, called the fan scan methodology. An implementation of the methodology has been installed and results are presented, highlighting the fan scan capabilities