When building a wind farm, meteorological conditions and social and natural conditions should first be considered.
1. Meteorological conditions?
1.1. Wind energy quality should be high. The primary condition for a wind farm site must be abundant wind energy resources. The annual average wind speed is above 5m/s, the effective wind hours at a height of 30m is above 6000h, and the effective wind energy density is above 240w/m^2. It is suitable for the construction of large wind farms.
In fact, the factors that affect the quality of wind energy include annual average wind speed, average wind power density, wind frequency distribution, available hours of effective wind speed, wind direction stability, etc. ?
1.2. The prevailing wind direction at the wind farm site is stable. Stable wind direction can not only increase wind energy utilization, but also extend the life of wind turbines. ?
1.3. The degree of turbulence in wind farms should be small. Wind is random and affected by the surface roughness of the site and nearby obstacles. The formation of wind field turbulence is generally caused by the wind channel being too rough or the sudden changes in wind speed and direction caused by obstacles. It will not only affect the output of the wind turbine, but also cause vibration and uneven loading of the wind turbine, reduce the service life of the wind turbine, and in serious cases may cause accidents in which the blades fly out. ?
1.4. There should be fewer natural disasters at wind power generation sites. Strong winds, hail, thunderstorms, earthquakes, etc. will all affect wind turbines. ?
2. Social and natural conditions?
2.1. The terrain of the wind power site should be relatively flat and the geological conditions should be good to facilitate civil construction. ?
2.2. Convenient transportation. It is necessary to consider whether the supply of equipment and the transportation of main construction materials of the proposed wind farm are convenient. Is it conducive to the construction and transportation of large cranes and flatbed trucks? ?
2.3. The wind farm should be as close as possible to the grid access point. For example: close to existing 10KV and 66KV substations and lines to reduce power loss and delivery project costs. Occupy as little cultivated land as possible to reduce ecological damage. ?
2.4. Surrounding environment. The construction of wind farms generally affects the normal life and migration of birds and birds. In order to protect the ecology, the site should try to avoid bird flight routes, migratory birds and animal habitats, etc., and stay away from nature reserves, military facilities, and densely populated areas. Region etc.