The principle of wind power generation is to use wind energy to rotate the blades of the wind turbine, and then use a speed multiplier to increase the rotation speed to encourage the generator to produce electricity. According to current wind turbine technology, electricity production can start at a wind speed of around three meters per second.
Principle
The principle of wind power generation is to use wind energy to rotate the blades of the wind turbine, then to use a speed multiplier to increase the rotation speed to produce electricity. The engine produces electricity; it consists of a nose, rotor, tail and blades. The functions of each part are as follows: The blades are used to receive wind energy and convert it into electrical energy through the motor. the nose; the tail holds the bladesfacing the direction of the incoming wind to obtain maximum wind energy; the rotor allows the nose to rotate flexibly to adjust the direction of the tail is a permanent magnet and the stator winding; cuts magnetic lines of force to generate electrical energy.
Due to the unstable air volume, the wind turbine produces 13-25 V alternating current, which must be rectified by the charger and then the battery is charged, so that the electrical energy generated by the wind turbine becomes chemical energy. Then use an inverter with a protection circuit to convert the chemical energy of the battery into AC 220V mains power to ensure stable use.
Advantages and DisadvantagesAdvantages
1. Wind energy is a clean energy source.
2. Wind power installations are improving day by day and mass production is reducing costs. In app locationsHowever, the cost of wind power generation is lower than that of other generators.
3. Wind turbine installations are mostly non-three-dimensional installations that can protect the earth and ecology.
4. Wind energy is a renewable energy source, very environmentally friendly and very clean.
5. Wind energy is energy efficient and environmentally friendly.
Disadvantages
1. The ecological problem with wind power is that it can disturb birds. For example, grouse in Kansas, United States, have gradually disappeared. . The current solution consists of producing electricity at sea, which is more expensive but also more efficient.
2. In some regions, the profitability of wind energy production is insufficient: In many regions, wind energy is intermittent. What's worse is that in placeslike Taiwan, in summer and during the day, when energy demand is needed. is high, wind energy is less time-consuming; we must wait for energy storage technologies such as compressed air to develop. [4]
3. Wind energy production requires a large amount of land to build wind farms to produce relatively large amounts of energy.
4. When wind power is generated, the wind turbine will make a huge noise, so it is necessary to find open places to build.
5. Current wind power generation is not yet mature and there is still considerable room for development.
6. Wind speed and the amount of energy generated are unstable.
7. The use of wind energy is seriously limited by geographic location.
The disadvantages of wind energy production areWhat?
That is to say, the choice of the location of the wind turbine must be based on a technical and economic comparison of several options to determine the location plan of the wind turbines in the wind farm so that the wind farm can obtain better energy production. In addition to the distribution characteristics of wind energy resources in wind farms, the layout of units should also take into account the limitations of objective factors such as land use, villages, power facilities and temperature-sensitive factors. the environment, terrain conditions around wind turbines and the adverse effects of buildings, trees or other obstructions and the impact of wakes between wind turbines.
In flat ground conditions, it is easy to respect this principle. In mountainous areas, it is often difficult to respect this principle. According to the requirements of transportation machinery and machineryinstallation requirements for the selected model, there must be sufficient space near the machine position to operate and place the blades and lathes. The road must have sufficient slope, width and turning radius to allow transportation. machines to reach the selected aircraft position. Arrange them in columns parallel to the main direction of wind energy and in rows perpendicular to the main direction of wind energy. The rows are parallel and the columns are spaced the same. Energy production is higher when row spacing is greater than column spacing, but the equidistant layout is visually better. The pursuit of visual beauty will result in some loss of energy production. There must therefore be a certain balance between economic benefits and beauty.
It should be noted that the loss of energyThe energy of a multi-row, multi-column arrangement is also related to terrain and ground roughness, so the numbers above only give us a perceptual understanding. On the one hand, considering the wake effect of wind turbines, we should make the distance between wind turbines as large as possible; on the other hand, land use and grid connection restrictions require that the distance between wind turbines be as small as possible; . According to experience, in the direction parallel to the main wind direction, the distance between wind turbines is generally kept at a distance of 5 to 9 times the diameter of the wheel, in the direction perpendicular to the main wind direction, the distance between wind turbines is 5 to 9 times the diameter of the wheel. generally kept at a distance of 3 to 5 times the diameter of the wheel. The layout shown in Figure 3 takes into account manyfactors and units are arranged in the shape of a plum blossom.
The main direction of wind energy in this area is the west and its southern and northern directions. Since the roughness of the water surface is small, the westerly wind always has high energy after passing through the water surface. In the land area on the east side of the water area, after the air flow lands, due to the increase in ground roughness, the wind speed attenuation increases and the density of the l wind energy is decreasing. The south, west and north sides of the water area are all hilly areas, especially the highlands (ridges) of the hilly area on the west side of the water area are perpendicular to the main wind direction. When airflow passes through this area, it creates strong turbulence as the ground rises. Ascent acceleration effect, wind speed reaches the maximum value in the summit areaof the mountain, so the mountain top area is an ideal area for the fabric machine.
Wind energy production will harm the environment, harm the climate and cause noise pollution. The details are as follows:
1. Wind energy production will harm the local ecology, destroying vegetation, changing topography, causing soil erosion and land desertification.
2. Wind energy affects the local climate. Wind energy uses wind energy present in the atmosphere. According to the law of conservation of energy, the consumption and production of one type of energy must produce or consume another type of energy. . Therefore, the wind turbines produced electricity. Cheng must be sure of this.
3. The environment around the wind farm is good, so it will become a paradise for many birds, but a large number of birds will be harmed by thes wind turbines.