It's pretty much the same as wind turbines on land, the difference is that
1. Installing foundations offshore is more complicated and more expensive than installing foundations on land
3 The air at sea is very humid, salty and corrosive. Wind turbine equipment requires special treatment. -treatment against corrosion. Resist strong corrosion in sea air.
So we can say that the cost of offshore wind turbines is higher than that of onshore wind turbines. This is why the unit capacity of offshore wind turbines must be reduced. be large, which can reduce the cost of foundation and lifting
That is, the choice of wind turbine location should be based on technical comparison and economical of several options to determine the plan layout of wind turbines in the parc wind power so that the wind farm can obtain better energy production. In addition to the distribution characteristics of wind energy resources in wind farms, the layout of units should also consider the limitations of objective factors such as land use, villages, power facilities and wind-sensitive factors. environment, terrain conditions around wind turbines and the adverse effects of buildings, trees or other obstacles and the impact of wakes between wind turbines.
In flat terrain conditions, it is easy to respect this principle. In mountainous areas, it is often difficult to respect this principle. According to the requirements of the transport machines and installation machines required for the selected model, there should be enough space near the machine position to operate and place the blades and lathes. The road must havesufficient slope, width and turning radius to allow transport. machines to reach the selected aircraft position. Arrange them in columns parallel to the main direction of wind energy and in rows perpendicular to the main direction of wind energy. The rows are parallel and the columns are spaced the same. Energy production is higher when row spacing is greater than column spacing, but the equidistant arrangement is visually better. The pursuit of visual beauty will result in some loss of energy production. There must therefore be a certain balance between economic benefits and beauty.
It should be noted that the energy loss of a multi-row, multi-column arrangement is also related to the terrain and ground roughness, so the above figures only give us than a perceptual understanding. D'on the one hand, considering the wake effect of wind turbines, we should make the distance between wind turbines as large as possible; on the other hand, land use and grid connection restrictions require that the distance between wind turbines be as small as possible; . According to experience, in the direction parallel to the main wind direction, the distance between wind turbines is generally kept at a distance of 5 to 9 times the diameter of the wheel, in the direction perpendicular to the main wind direction, the distance between wind turbines is 5 to 9 times the diameter of the wheel. generally kept at a distance of 3 to 5 times the diameter of the wheel. The layout shown in Figure 3 takes many factors into account and the units are arranged in a plum blossom shape.
The main direction of wind energy in this area is the west and its southern and northern directions. Since the roughnessof the water surface is weak, the westerly wind still has high energy after crossing the water surface. In the land area on the east side of the water area, after the air flow lands, due to the increase in ground roughness, the wind speed attenuation increases and the density of the l wind energy is decreasing. The south, west and north sides of the water area are all hilly areas. In particular, the highlands (ridges) of the hilly area on the west side of the water area are perpendicular to the main wind direction when the air flow passes through it. area, this creates strong turbulence as the ground rises. Acceleration effect of ascent, the wind speed reaches its maximum at the top of the mountain. At the maximum value, this area on top of a hill is therefore an ideal area for fabric machines.