In 2015, my country added 100 offshore wind power installations, with a capacity of 360.5MW, a year-on-year increase of 58.4%. By the end of 2015, my country’s cumulative installed capacity of offshore wind power projects was 1,014.68MW. • The single unit capacity of offshore wind power has been increased from the initial 600kw to larger capacity wind turbines such as 2MW, 4MW and 5MW. Among all hoisted offshore wind turbines, the installed capacity of 2.5MW units accounted for 18.48%, the installed capacity of 3MW units accounted for 17.74%, and the installed capacity of 4MW units accounted for 34.69%. • Large-capacity, low-speed wind turbines in the southern region are more favored by the market. As my country’s wind power market matures, the competitive environment is more rational. Coupled with the pressure brought about by the reduction of electricity prices, the hotspots of market competition will gradually shift from wind resource-rich areas to low wind speed areas
Mesoscale Micro Site Selection and Wind Energy Resource Assessment
(1) Micro-site selection approach
1) Many wind farms have been built across the country. There are also undeveloped areas near some wind farms. According to the power generation of the existing wind farms, the development prospects of the new wind farms are judged.
2) Some regions have already conducted surveys on wind energy resources. You can consult relevant departments such as the Development and Reform Commission, the meteorological department, professional consulting units, power departments or people with rich construction experience.
3) The Chinese Academy of Meteorological Sciences and the relevant departments of some provinces and regions have drawn a national or regional wind energy resource distribution map, and divided wind energy resources according to the wind power density and the number of hours of effective wind speed. Macro site selection.
4) Mesoscale simulation – time-saving and accurate.
(2) Site selection of mesoscale wind farms
The wind speed at 80m height is about 5.5~6.0m/s, and the developable capacity is about 150~200MW; Area 2: The wind speed at 80m height is about 6.0~6.5m/s, and the developable capacity is about 200~300MW; Area 3: The wind speed at 80m height is about It is 6.5~7.0m/s, and the developable capacity is about 300~450MW; the area 4: 80m height speed is about 5.0~5.5m/s, and the developable capacity is about 100MW.
Post time: Dec-26-2022
