Open AccessWind energy assessment for low complex terrain using reference meteorological mast
Author(s) -
Angel Terziev,
Yancho Panteleev,
M. P. Ivanov
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1032/1/012041
Subject(s) - terrain , wind shear , mast (botany) , wind power , orography , meteorology , turbine , environmental science , wind profile power law , wind speed , wind direction , geology , planetary boundary layer , boundary layer , roughness length , marine engineering , engineering , geography , aerospace engineering , precipitation , cartography , mast cell , electrical engineering , immunology , biology , turbulence
The wind flow distribution over semi-complex terrains is evaluated by the roughness factor of the topography and the terrain peculiarities. The energy yield from the turbines in the park is based on the wind parameters extrapolated from the on-site measurement point to wind turbine hug height. For the lower zones of the terrain, the wind shear is influenced by the boundary layer, which can hardly be modeled using only tall tower data and a linear numerical model. The implementation of a second mast (reference), however, gives enough reliable data about the wind parameters at the lower part of the location and is used to adjust the flow and directional behavior from the main mast. The current study shows that for the low complex terrains using the proposed methodology an improvement of the assessed energy yield from the farm with 3% might be anticipated. Furthermore, for more complex terrains where the effect of the orography on the wind shear is more significant the expected improvement should be higher.