Dafengba wind farm is located in Yunnan, China. It was finished in 2008 and is owned by .
It is near Dali.
See below for data.
Wind farms, as a general rule demand wind speeds of 4.5 metres per second or higher.
The very best destination for something similar to Dafengba would be a steady availability of non-turbulent wind. An important factor of turbine siting is moreover access to local requirement or transmission capaDali.
Before development, Dafengba was most likely screened on the basis of a wind atlas, and validated with wind measurements. Meteorological wind data alone is usually not ample for accurate siting of a large wind power project.
Site info around Dali is a major aspect in the development choice Winds around Dali are examined for over a year or so plus the creation of detailed maps. Only then are wind turbines installed.
The wind hits quicker at higher altitudes because of the reduced influence of drag. The boost in velocity with altitude is most remarkable close to the surface and is affected by landscape, surface roughness, and upwind obstacles such as trees or buildings. Velocity boosts with altitude and is more evident near land and is changed by topography, surface and obstructions.
Almost always, the increase of wind speeds with growing elevation follows a wind profile power law, which anticipates that wind speed rises proportionately to the seventh root of altitude. Doubling the altitude of a turbine, then, increases the anticipated wind speeds by 10%, and the anticipated power by 34%.
The distance of 7x Rotor Diameter is placed between each turbine, ie they are spaced out so that they don’t affect each other. But micrositing increases placement, specifically in hilly areas.
Dafengba turbines are linked via medium voltage lines and communications.
At a substation, this medium-voltage electric current is improved in voltage with a transformer for link with the high voltage transmission system. Construction of a land-based wind farm requires installing of the collector system and substation, and perhaps roads to each and every turbine site.
Facts about Dafengba wind farm
- Name: Dafengba
- Wind turbine Supplier: Windey, Model: WD49-750/0.75MW, Units: 34,
- Country: China
- Developer: China Huaneng Group
- State: Yunnan
- City: Dali