When the wind energy is sufficient and stable, one rotation can generate 1.94 kilowatt-hours of electrical energy.
1. This is related to factors such as the type and capacity of the fan and the speed of the generator. For example, if the permanent magnet generator of a 2MW direct drive fan reaches the rated speed of 17rpm, the time for one revolution is 60/17=3.5 seconds. If a 2MW wind turbine continues to generate electricity for 1 hour at rated speed, the amount of electricity generated in 3.5 seconds is 3.5×2000/3600=1.94 kilowatt hours, that is, this much electricity is generated in one revolution. For doubly-fed fans, it is also related to the gearbox reduction ratio.
2. Power generation refers to the production process of hydro energy, fossil fuel (coal, oil, natural gas) thermal energy, nuclear energy, etc. Converted into electrical energy by power plants. DC power generation mostly uses electrochemical methods to generate electricity, generally called batteries, which mainly use low power. The main forms of power generation are hydropower, thermal power and nuclear power.
3. Wind turbines are composed of basic components such as impellers, nacelles and towers. Its power generation principle is very simple: the unit uses wind power to drive the windmill impeller to rotate, and the wind energy is converted into mechanical energy. The generator then converts the mechanical energy into electrical energy, and then transmits the electrical energy to the wind farm booster station through the collector line, and then transmits it to the wind farm after boosting. The power grid can become clean wind power used by thousands of households.
How many kilowatt-hours of electricity does wind power produce in one revolution?
A windmill can generate 1.96 kilowatt-hours of electricity in one revolution.
Different engines have different powers. When the wind energy is relatively stable, it can generally generate 2,000 degrees of electricity in 60 minutes. On average, it can generate 0.56 degrees of electricity per second, and one revolution The amount of electricity that can be generated is 1.96 kWh. Of course, this data is not completely accurate and will be affected by the influence of wind and the constraints of the generator itself. Solar energy-related technology is not mature enough and has not been put into large-scale use due to its relatively high cost.
But there are still many people who are still committed to research in this energy field, and this energy will also bring great changes to people's lives in the future. In the future, those with poor conversion rates will be harmful to the environment. There will also be adverse effects on the way power generation is gradually changed.
The principle of windmill power generation
The principle of wind power generation is to use wind power to drive the windmill blades to rotate, and then increase the speed of rotation through a speed increaser. to cause the generator to generate electricity. The blades are used to receive wind power and convert it into electrical energy through the nose. The tail allows the blades to always face the direction of the incoming wind to obtain the maximum wind energy. The swivel allows the nose to rotate flexibly to realize the function of adjusting the direction of the tail. The rotor of the nose is Permanent magnets, stator windings cut magnetic lines of force to generate electrical energy.
Due to the unstable air volume, the wind turbine outputs alternating current of 13-25V, which must be rectified by the charger and then the battery is charged, so that the electrical energy generated by the wind turbine is converted into chemical energy. . Then use an inverter power supply with a protection circuit to convert the chemical energy in the battery into AC 220VMains power is required to ensure stable use.
Wind power generates 2 kilowatt hours of electricity per turn.
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 generate 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.