For a 1.5 MW wind turbine, the generator spins about 1,800 times per minute, generates 1,500 kilowatt hours of electricity per hour, and the turbine spins about 18 times per minute. This is directly related to the unit's ability.
Generally speaking, level 3 winds are valuable. However, from an economic and reasonable point of view, wind speeds above 4 meters per second are suitable for electricity generation.
According to measurements, a 55 kilowatt wind turbine has an output power of 55 kilowatts when the wind speed is 9.5 meters per second; when the wind speed is 8 meters per second, the power is 38 kilowatts; wind speed When the wind speed is 6 meters per second, it is only 16 kilowatts; when the wind speed is 5 meters per second, it is only 9.5 kilowatts. It can be seen that the stronger the wind force, the greater the economic benefits.nts.
Detailed information
A wind turbine is an electrical device that converts wind energy into mechanical work. Mechanical work causes the rotor to rotate and ultimately produces reciprocating output. current. Wind turbines generally consist of components such as a wind wheel, a generator (including devices), a steering (tail), a tower, a speed-limiting safety mechanism, and an energy storage device.
The operating principle of a wind turbine is relatively simple. The wind wheel rotates under the influence of the wind. It converts the kinetic energy of the wind into the mechanical energy of the wind wheel shaft. driving the wind wheel shaft to produce electricity. Generally speaking, wind energy is also solar energy, so we can also say that a wind turbine is a generator using thermal energy that uses the sun to cosame heat source and the atmosphere as working fluid.
For many centuries, wind turbines, like hydraulic machines, have played an important role in the development of productivity as a source of energy to replace human and animal energy. The widespread application of electromechanical power in modern times and the discovery of oil deposits in the Middle East in the 1950s slowed the development of wind turbines.
In the early 1970s, due to the “oil crisis”, energy shortages appeared. People have become aware of the instability and limitations of conventional fossil energy supplies, so the search for clean and renewable energy has become a key issue in the modern economy. world. an important subject. As a renewable and non-polluting natural energy source, wind energy has once again attracted attention.
References:
Qinghai Lenghu Wind Power Generation Hours
It depends on the power of the wind turbine. If the power is large, the electricity production will be significant; if the power is small, the electricity production will be low. China's largest wind turbine is 2 megawatts, with daily electricity production equivalent to 11 tons of high-quality coal.
The generator turns one or two thousand revolutions per minute, while the wind turbine only generates one thousand kilowatt hours of electricity per hour. This is directly related to the unit's capacity.
For example, in a 1.5 megawatt wind turbine, the generator spins about 1,800 revolutions per minute, producing 1,500 kilowatt hours per hour, and the turbine spins about 18 times per minute.
This depends on factors such as type and capacityof the fan as well as the speed of the generator.
For example, for a 2 MW direct drive wind turbine, its permanent magnet generator reaches the rated speed, say 17 revolutions per minute, and it takes 60/17 = 3.5 seconds to make a lap. If a 2 MW wind turbine generates electricity continuously for 1 hour at rated speed, the amount of electricity generated in 3.5 seconds is 3.5*2000/3600 = 1.94 kilowatt hours, or the amount of electricity generated in one revolution.
For dual-feed fans, this is also related to the gearbox reduction ratio.
No, let me tell you basically, the fan is 1500 kW. If it is full, it will spin at 17 revolutions per minute. If you do the math, one rotation equals 1.47 kilowatt hours of electricity. This is only an approximation and is not exact.
5620 hours. According to a query from the international wind network, the Qinghai Lenghu wind zonehas abundant wind energy resource reserves, with an average annual wind period of up to 180 days and an effective annual wind energy duration of 5,620 hours. The project is located in the northern part of the Qinghai-Tibet Plateau, with high altitude, low temperature, little rain, windy, cold and dry conditions.