The theoretical power generation calculated by wind power software needs to be modified as follows based on the degree of influencing factors.
1) Air density reduction, the air density reduction coefficient calculation formula is: air density reduction coefficient = (1 - wind field air density / standard air density) * before rated wind speed Wind energy frequency.
If the on-site air density power curve is used to calculate power generation, there is no need to reduce it.
2) Reduction of wake losses. The wake losses of each wind turbine are generally considered through software calculations, so reductions will not be repeated.
3) The utilization rate of wind turbines depends on whether the wind power is generated by the unit or the power grid.
Arrange Tangfeng Songxiu in Xiaofengyue. Based on the current manufacturing level of wind turbines and the actual situation of the wind farm, the wind turbine utilization rate is estimated to be about 95%.
Wind power generates 2 kilowatt hours of electricity per revolution.
The power of commonly used wind turbines in China is about 2000KW. When the wind is good, each device can generate about 2 kWh of electricity when it rotates once. Although wind power generation relies on wind power, it is unstable. As long as the wind speed can reach 3 meters per second, it can generate electricity. And in terms of consumables, it can be said to be "zero cost".
Compared with thermal power generation, wind power generation can be said to be low-cost and high-profit. Depending on the power of the wind turbine, there are certain differences in the amount of electricity that can be generated. The amount of power generated by one rotation is also fundamentally related to the power. Generally, a generator set with a power of 1500KW can produce 1500 kWh of electricity in one hour.
Wind power generation prospects
The development prospects of China's wind power and other new energy power generation industries are very broad, and it is expected to maintain rapid development for a long time to come. Profitability will also steadily increase as the technology matures. After 2009, the total profit of this industry will maintain rapid growth, and the growth rate will also reach more than 60%.
With the development of wind power, its cost performance is forming a competitive advantage with coal power and hydropower. The advantage of wind power is that every time the capacity is doubled, the cost drops by 15%. In recent years, the growth of world wind power has remained above 30%. With the localization of China's wind power installed capacity and the scale-up of power generation, the cost of wind power is expected to drop further. Therefore, wind power has begun to become a place for more and more investors to pursue gold.