15 February 2012 A coherent laser Doppler wind profiler for the active control of wind turbines
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Abstract
A low cost design concept for Fibre-based Coherent Laser Doppler Wind Profiler is presented for supporting an active pitch control of Wind Turbines (WTs). The system is based on a 1.5μm Continuous-Wave (CW) semiconductor laser source plus an erbium-doped fibre amplifier (EDFA) with an output power of 1W. A coherent detection method is used for Doppler frequency measurement. In addition, a concept of wind turbine predictive pitch control system is proposed for reducing the damage caused by wind turbulence. A mathematical simulation and the experimental result based on a lab setup are presented to show the calibration of such a system.
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L. Shinohara, L. Shinohara, S. Bogatscher, S. Bogatscher, N. Heussner, N. Heussner, H. Umesh-Babu, H. Umesh-Babu, M. Brunet, M. Brunet, W. Stork, W. Stork, } "A coherent laser Doppler wind profiler for the active control of wind turbines", Proc. SPIE 8235, Solid State Lasers XXI: Technology and Devices, 823519 (15 February 2012); doi: 10.1117/12.908759; https://doi.org/10.1117/12.908759
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