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Dynamic wake field reconstruction of wind turbine through Physics-Informed Neural Network and Sparse LiDAR data

Author

Listed:
  • Wang, Longyan
  • Chen, Meng
  • Luo, Zhaohui
  • Zhang, Bowen
  • Xu, Jian
  • Wang, Zilu
  • Tan, Andy C.C.

Abstract

Real-time acquisition of dynamic wake field information has garnered substantial attention in the wind farm industry, as it provides a crucial data source for intelligent wind farm monitoring and control. However, the existing wind measurement technologies, such as light detection and ranging (LiDAR), are limited to sparse data point measurements. This paper explores the utilization of a Physics-Informed Neural Network (PINN) to reconstruct wind turbine wake dynamics, specifically focusing on the influence of active wind turbine yaw operation on wake evolution. The methodology involves creating a tailored loss function that combines sparse wake measurement data with the Navier-Stokes (NS) equations. More precisely, the neural network incorporates the NS equations as constraints to guide the prediction of physical quantities in the output, including downwind velocity, crosswind velocity, and pressure. Taking the dynamic wake during yawing as a case study, the proposed method showcases remarkable universality and robustness across diverse scenarios involving varying scanning angle intervals, measurement point spacings, frequencies, and noise levels. It successfully captures the dynamic trends in wake evolution during yawing and accurately forecasts the wake trajectory and deflection. Even when tested with actual wake measurement data, the method can still effectively reconstruct the flow field, indicating significant potential for the real wind farm yaw control.

Suggested Citation

  • Wang, Longyan & Chen, Meng & Luo, Zhaohui & Zhang, Bowen & Xu, Jian & Wang, Zilu & Tan, Andy C.C., 2024. "Dynamic wake field reconstruction of wind turbine through Physics-Informed Neural Network and Sparse LiDAR data," Energy, Elsevier, vol. 291(C).
  • Handle: RePEc:eee:energy:v:291:y:2024:i:c:s0360544224001725
    DOI: 10.1016/j.energy.2024.130401
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