Can wind generate electricity anywhere?

Introduction Can wind generate electricity anywhere? Not all winds can produce electricity. When it comes to selecting a wind power generation unit, the wind turbine will be selected based on the local wind resources. Machines currently commonly used around the world

Can wind generate electricity anywhere?

Not all winds can produce electricity. When it comes to selecting a wind power generation unit, the wind turbine will be selected based on the local wind resources. Currently, the commonly used units in the world are 1.5 MW/unit, 2 MW/unit, 3 MW/unit and 5 MW each. Whether or not electricity is produced is determined based on the start and stop wind speeds of the wind turbine. For example, the current common 2MW wind turbine has a starting wind speed of 3 meters, which means that the wind turbine starts producing power when the wind speed reaches 3 meters, but the wind speed of 3 meters will certainly not reach its full speed. power. Currently, domestic units essentially require a wind speed of around 11 meters to reach full power. Reducing the wind speed to 25 meters/second means that when the wind speed reaches 25 meterses/second, the wind turbine hub will automatically brake and feather the propeller to stop generating electricity to avoid overspeed.

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 speed of thewind 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.

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. by the wind wheel shaft to produce electricity. Generally speaking, wind energyis also solar energy, so we can also say that a wind turbine is a thermal energy generator that uses the sun as the heat source and the atmosphere as the 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.

Reference documents:

Baidu Encyclopedia - Wind Turbine

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