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Comprehensive measures should be taken to improve the quality and efficiency of wind power development。
a) For energy authorities.
1. Strengthen the planning and management of wind power development planning, and carry out the development and utilization of wind energy resources in a scientific and orderly manner.
1) No matter what kind of energy source, as long as its development and utilization is mainly converted into electric energy as the basic form, its development plan should be included in the overall power development plan as a power supply plan, and the same is true for wind power generation.
2) The development of wind power should implement the principle of "paying equal attention to output and local consumption and utilization, and focusing on centralized and distributed development".
Actively promote the construction of offshore wind power demonstration projects, and strengthen technical research and reserves。
2. Strengthen market supervision.
In accordance with the provisions of the law on full guaranteed purchase, strengthen law enforcement, strengthen the supervision of the electricity market, focus on monitoring the grid-connected operation and market consumption of wind power in various provinces (regions), grasp the actual situation of full guaranteed purchase of wind power, timely release relevant information to the public, and supervise the resolution of the problem of curtailment of wind power。
3. Use economic methods to mobilize the enthusiasm of power plants with peak regulation capacity, establish a compensation mechanism for auxiliary services such as peak regulation and frequency regulation, dig deep into the peak regulation capacity of the system, and continuously improve the capacity of the local power grid to absorb wind power.
4. It is recommended that the national competent authorities organize a special study on "how to promote the healthy and sustainable development of non-hydro renewable energy power generation such as wind power in the context of electricity market-oriented reform", including in-depth "the relationship between the guaranteed purchase policy and the implementation of the market mechanism, and the relationship between the mandatory benchmark electricity price policy and the implementation of the market mechanism".
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Daily management, wind power can be fully absorbed, wind turbine power generation benefits, etc. Among them, the power generation efficiency of wind turbines depends on the weather conditions on the one hand, and the stability and operation and maintenance quality of the wind turbines on the other hand. High wind turbine stability, less failure, can make full use of wind energy resources.
The perfect and timely operation and maintenance service can ensure the healthiest operation of the wind turbine. One cannot be the other. In addition to optimizing the performance of wind turbines, Sinovel Wind Power has also built a wind turbine operation and maintenance team of more than 800 people in recent years, providing operation and maintenance services for more than 240 wind farms across the country and overseas, and providing operation and maintenance services to other brands of wind turbines.
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Damage to the local ecological environment, destruction of vegetation, electromagnetic radiation affects residence, consumes wind energy, affects climate change, produces noise hazards, corrosion cracks on the surface of the blade, etc., which can easily cause leaf fracture and cause accidents.
Wind power generation will harm the local ecological environment, such as destroying vegetation, changing the topography, causing soil erosion and desertification. The electromagnetic radiation generated by wind power generation affects human habitation, and an alternating electromagnetic radiation field is formed around high-voltage transmission lines and affects human health.
Wind power affects the local climateWind power is the use of wind energy in the atmosphere, and the wind turbine power generation process consumes a part of the wind energy in the atmosphere to bring about climate changes.
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The advantages of wind power generation can be summarized as follows.
Points: (1) Wind energy is an inexhaustible, abundant and pollution-free renewable energy;
2) the construction of wind farms** is much cheaper than the construction of hydroelectric power plants, thermal power plants and nuclear power plants;
3) electricity can be generated without the need for conventional fuels or nuclear materials required by nuclear power plants, without any consumption other than routine maintenance;
4) Compared with other power generation methods, wind power generation generally has a short construction period, and one is installed and put into production, and the installed capacity is flexible, which can be determined according to the amount of funds, which brings convenience to raising funds;
5) Wind power generation is simple to operate and can be completely unattended;
6) The actual land occupied by wind power generation is small, and the units, monitoring, substation and other buildings only account for about 7% of the land of the wind farm, and the rest of the site can still be used by other industries. It has low requirements for terrain and can be built in hills, seashores, river embankments, deserts and other places.
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We often see tall equipment like big windmills in some open and windy places, and some of these equipment are wind turbines. From thermal power generation in the past, to today, the world is advocating clean energy. Various countries are also investing more and more in wind turbines, and household wind power generation is 9,000 yuan per unit.
Wind power is a renewable energy source, and it is also a natural energy source that is not polluting. Wind turbines can go as low as 30 meters and as high as 80 meters, with blades up to 18 meters. It is then generally built on flat ground where the wind speed distribution is more evenly distributed, and destructive wind speeds are rare.
Wind power generation has its particularity, as an uncontrollable power source, it has the characteristics of randomness and intermittency, and the connection of wind power to the power grid has a negative impact on the safe and stable operation of the power system and the power quality.
The basic principle of wind power generation is to use wind blades to capture wind power, then start to rotate, and then increase the speed of rotation through a speed booster to promote the generator to generate electricity. Wind power is the use of wind energy in the atmosphere, according to the law of conservation of energy, the consumption and generation of one energy must produce or consume another energy, so the wind turbine power generation process will inevitably consume a part of the wind energy in the atmosphere, and wind energy as one of the important factors of climate change, its change will inevitably bring climate change.
As early as the end of the nineteenth century, the first wind turbine has been manufactured, but at that time due to the low economic efficiency, the wind turbine was not taken seriously, until recent years, the energy crisis and environmental awareness has led to the development of wind turbines, so that people began to rely on this widely distributed, locally desirable, inexhaustible, pollution-free energy.
Wind energy is back in the spotlight because it is a renewable, non-polluting natural energy that is much better than diesel power generation. Due to the high noise and pollution of diesel generators, high fuel requirements, aggravating the greenhouse effect, and so on. But if it is used in an emergency, it is still not as good as a diesel generator.
Wind power is not considered a backup power source, but it can be used for a long time.
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How many kilowatt-hours of electricity can a windmill cost tens of millions of dollars generate a day? Is it a profit or a loss when converted into electricity prices?
The cost of a commonly used two-megawatt wind turbine is about 7.2 million to 8.5 million yuan, and the supporting tower costs 2 million yuan. Without counting other supporting facilities, the cost of a large windmill has reached tens of millions of yuan. So how many kilowatt-hours of electricity can such an expensive wind turbine rotate a day?
Is it a profit or a loss when converted into electricity prices?
Generally speaking, the greater the power of the wind turbine, the greater the applicable wind speed, and the greater the power generation. For example, a 55,500-watt wind turbine can generate 55 kilowatts of electricity per hour when the wind speed is meters per second, and when the wind speed is five meters per second, its electricity is only kilowatt-hours. As for the relatively large two-megawatt wind turbine, when the wind is stable, it takes about a second to make a revolution, and it can generate an average of one second of electricity, so that he can generate at least about 2,000 kilowatts of electricity in an hour.
Converting it into electricity prices, a two-megawatt wind turbine generates nearly 30,000 yuan a day, based on the number of yuan per kilowatt of urban residents in China. If the wind is stable for half of the year, then tens of millions of wind turbines can pay for themselves in at least two years, not to mention that the design life of wind turbines is generally 20 years, so it seems that using wind power is still very profitable.
So why can a fan that usually seems to make money slowly still generate so much electricity? The key lies in the internal speed machine. To put it simply, the wind turbine uses wind energy to drive the blades to rotate, and then increases the speed through multiple gear sets such as the speed increaser, so as to drive the generator to generate electricity, of which the speed increase effect of the speed increaser can reach about 50 times.
For example, it is not surprising that the blades of a wind turbine with an external key cooktop rotate 30 revolutions per minute, and the internal generator gears earn 1,500 revolutions per minute, which generates a large amount of electrical energy.
Wind power generation is safe and pollution-free, with high efficiency and fast return on investment. So why are the first European countries to dismantle wind power facilities today? The first reason is the influence of the climate.
In recent years, wind speeds in Europe have dropped so much that wind power has become unmovable** and power generation has declined. Second, due to extreme weather, the electrodes emitted by the wind are unstable and cannot be integrated into the power grid and are difficult to store, and even if the power generation is generated, it will be wasted. In addition, the operation of a large number of wind turbines can slow down the wind speed, which can affect the climate, cause local droughts, and tall wind turbines can also be harmful to birds.
These reasons have made the disadvantages of wind turbines increasingly apparent, and the resistance to wind turbines has gradually risen. However, there are pros and cons to everything, and as long as these problems are solved well, wind power is still a good clean energy, and the key depends on how to deal with it.
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Wind power has many advantages:
1.Green energy: Wind power produces no greenhouse gas emissions, and no other harmful substances are released, so it is a clean, green energy source.
2.Renewable resource: Wind power is a renewable resource, and it is not depleted or depleted. With the continuous advancement of science and technology, the efficiency of wind power generation is also increasing.
3.Reduced energy costs: Wind power can reduce energy costs because it is a natural energy source that does not require the import of resources such as oil or coal.
4.Promote economic development: Wind power can boost economic development because it creates jobs and boosts local economic development.
5.Environmental advantages: Wind power generation has a relatively small impact on the environment, and will not produce pollutants such as exhaust gas, waste water and solid sensitive waste. At the same time, wind power can also reduce dependence on fossil fuels and reduce environmental problems such as air and water pollution.
In summary, wind power has many advantages, including being green, renewable, reducing energy costs, promoting economic development, and environmental protection. Therefore, wind power is a sustainable and environmentally friendly energy source that should receive more attention and application.
Line loss and transformer loss need to be considered! You estimate that it is enough to compensate 2000kvar on the 35kv side.
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