Wind direction has an important parameter icon called wind frequency rose diagram, which is an important indicator for considering wind field quality. Wind direction plays a very important role in the wind farm. The wind frequency diagram is in the main wind direction. The frequency is very high, which means that the efficiency of the wind farm is relatively high, reducing the impact of wind direction fluctuations on the equipment and power generation. As follows:
Permanent land acquisition is generally based on the machine position of 25*25 meters. If there is a box type transformer, it is used. it must be added. The land occupied by the booster station is also the subject of permanent land acquisition.
Attempts to use wind energy to produce electricity havestarted at the beginning of the 20th century. In the 1930s, Denmark, Sweden, the Soviet Union and the United States applied rotor technology from the aviation industry and successfully developed some small wind power devices.
This type of small wind turbine is widely used in windy islands and remote villages. The cost of generating electricity is much lower than that of a small internal combustion engine. However, electricity generation capacity at that time was relatively low, generally less than 5 kilowatts.
Detailed information:
Development of China:
2006 In 2007, China had a total of 6,469 wind turbines, of which 21.2% were megawatts. In 2007, this proportion jumped to 38.1%, an increase of 16.9 percentage points. In 2007, the cumulative installed capacity of global wind power reached 94,100 MW, or oneincrease of 27% compared to the 74,200 MW of the previous year.
In 2007, China's installed wind capacity was 6.05 million kilowatts, reaching the planned 2010 target three years ahead of schedule; in the six years from 2001 to 2007, China's installed wind capacity increased 14-fold; In 2007 alone, China's installed wind power capacity increased by 3.449 million kilowatts, more than the cumulative total of China's wind power in history. With the rapid development of the wind power industry, the supply of wind power equipment exceeds demand.
Baidu-Wind Encyclopedia