Wind power is garbage power? The West has launched a wave of anti-wind power. Is wind power really so harmful?

At present, China's power generation methods mainly include thermal power generation, solar power generation, and wind power generation. Among them, wind power generation is a relatively green power generation method. However, in Western Europe and other regions, the use of wind power generation has been eliminated.

Then, in view of the view that wind power generation is harmful to Western Europe in recent years

Is it necessary for China to stop using wind power? Does wind power really do a lot of harm?

First of all, we have to start with the principle of wind power generation. From the perspective of energy, wind power generation essentially converts wind energy into mechanical energy, and then converts mechanical energy into electrical energy.

The wind blows the blades of the generator and drives the speed increaser to run, so that the inside of the generator continuously generates electric energy.

The generated electric energy is boosted by a transformer and transported to the national grid, so that it can be used by people all over the country.

However, the actual power generation process is far more complicated than the principle. First of all, to make the whole power generation device work, it needs to be driven by wind.

The strength of the wind greatly affects the power generation, and the surface area of ​​the blades in direct contact with the wind is also inseparable from the power generation.

Generally speaking, the stronger the wind and the larger the surface area of ​​the blades in contact with the wind, the more power will be generated. Based on these theories, the new generation of generators are now equipped with sensors and geared motors on the blades.

When the wind speed is too low, the sensor transmits a signal to the computer, and the computer detects the signal and makes its own power system drive the blades to rotate, increasing the speed of the blades by increasing the windward area of ​​the blades.

On the contrary, when the external wind is too strong, the computer will also adjust the windward area of ​​the blades so that the speed can be controlled.

What does controlling blade speed mean for a generator?

Regardless of the external wind speed, we can observe that the rotation speed of the blades is controlled at a very slow speed, and sometimes we obviously do not feel the existence of the wind, but the blades can still rotate.

In fact, this is because the current large wind turbines are all over 100 meters high, we may not feel the wind on the ground, but "the heights are too cold", the blades on the top of the generator may be turned by the wind .

But sometimes we can clearly feel the strong wind, but the speed of the blades can still be slow, because there is a speed limiter inside the nacelle to adjust.

The speed limiter controls the speed of the blades all the time, so that the blades still maintain a slow speed under the drive of strong wind outside.

In this way, the rotational speed of the blade can be kept in a relatively stable range, and the service life of the blade can be extended. It can also reduce the temperature in the engine room and reduce the loss of bearings.

After understanding the principle of wind power generation, let's talk about the pollution of wind power generation

The pollution of wind power generation is first of all the raw material pollution of the blades. The blades are made of special iron materials, and the outer surface is usually wrapped with toughened glass materials.

This tempered glass material is a non-recyclable resource. Many experts see this and think that wind power is not environmentally friendly.

However, for the modern industrial environment, the loss of this little resource cannot be compared with the environmental pollution caused by other industrial wastes, nor can it be compared with the pollution caused by traditional thermal power generation, nuclear power generation, etc., so wind power generation is actually relatively environmentally friendly.

Some netizens may be curious, since the West insists that the use of tempered glass will cause a waste of resources

So why not use the more common iron and aluminum resources to make generators? Wouldn't this solve the resource problem?

This is actually due to the consideration of metal fatigue, because the blades are always in a high-intensity motion state. If metal materials are used to make the blades, the service life of the blades will not be long enough.

The use of tempered glass materials can greatly extend the life of the blades, but the Western considerations are indeed reasonable, so Chinese scientists are constantly researching and synthesizing new materials to try to replace tempered glass in order to reduce resource consumption.

Another hidden danger of wind turbines is that they will continuously generate low-frequency sound waves during the power generation process, and such sound waves will cause harm to humans and other animals.

For human beings, if they stay near the wind power station for a long time, it will affect their hearing over time, and some birds or some smaller animals may die directly when they pass under the wind power generator.

In order to solve this problem, most of the generators in China are built on the mountains to avoid harm to people and animals.

After recent years of development, wind power has gradually become an indispensable power generation method in China. Although there are still problems in materials and other aspects that need to be improved, the pollution of wind power has been minimized by China, at least for now. Disadvantageous way of generating electricity.

Therefore, China can safely develop wind power generation, and with the change of energy utilization structure in the future, wind power generation is still the road that China must firmly develop.