Atmospheric stability and topography effects on wind turbine performance and wake properties in complex terrain

  title={Atmospheric stability and topography effects on wind turbine performance and wake properties in complex terrain},
  author={Xing Xing Han and Deyou Liu and Chang Xu and Wen Zhong Shen},
  journal={Renewable Energy},
Experimental Study on Wake Evolution of a 1.5 MW Wind Turbine in a Complex Terrain Wind Farm Based on LiDAR Measurements
To study the wake development characteristics of wind farms in complex terrains, two different types of Light Detection and Ranging (LiDAR) were used to conduct the field measurements in a mountain
On the measurement of stability parameter over complex mountainous terrain
Abstract. Atmospheric stability has a significant effect on wind shear and turbulence intensity, and these variables, in turn, have a direct impact on wind power production and loads on wind turbines.
Monin–Obukhov Similarity Theory for Modeling of Wind Turbine Wakes under Atmospheric Stable Conditions: Breakdown and Modifications
Monin–Obukhov similarity theory (MOST) overestimates the mean vertical velocity gradient in some atmospheric stable conditions, i.e., Richardson number R f < 0 . 25 . To obtain a given hub-height
Numerical and experimental analysis of the flow over sinusoidal hills
ABSTRACT The present work aims to investigate the flow behaviour of the wind turbines placed in a complex region environment. The small-scale wind turbine models are compared to the flat terrain
A BEM-Based Actuator Disk Model for Wind Turbine Wakes Considering Atmospheric Stability
Atmospheric stability affects wind turbine wakes significantly. High-fidelity approaches such as large eddy simulations (LES) with the actuator line (AL) model which predicts detailed wake


Atmospheric stability affects wind turbine power collection
The power generated by a wind turbine largely depends on the wind speed. During time periods with identical hub-height wind speeds but different shapes to the wind profile, a turbine will produce
Dissipation of Turbulence in the Wake of a Wind Turbine
The wake of a wind turbine is characterized by increased turbulence and decreased wind speed. Turbines are generally deployed in large groups in wind farms, and so the behaviour of an individual wake
Modelling and measurements of power losses and turbulence intensity in wind turbine wakes at Middelgrunden offshore wind farm
Understanding of power losses and turbulence increase due to wind turbine wake interactions in large offshore wind farms is crucial to optimizing wind farm design. Power losses and turbulence
Wind-Turbine Wakes in a Convective Boundary Layer: A Wind-Tunnel Study
Thermal stability changes the properties of the turbulent atmospheric boundary layer, and in turn affects the behaviour of wind-turbine wakes. To better understand the effects of thermal stability on
Comparing mixing-length models of the diabatic wind profile over homogeneous terrain
Models of the diabatic wind profile over homogeneous terrain for the entire atmospheric boundary layer are developed using mixing-length theory and are compared to wind speed observations up to 300 m
Wind turbine wake measurement in complex terrain
SCADA data from a wind farm and high frequency time series measurements obtained with remote scanning systems have been analysed with focus on identification of wind turbine wake properties in
A Critical Review on Wind Turbine Power Curve Modelling Techniques and Their Applications in Wind Based Energy Systems
Power curve of a wind turbine depicts the relationship between output power and hub height wind speed and is an important characteristic of the turbine. Power curve aids in energy assessment,