Site selection requirements for wind power plants

Introduction Site selection requirements for wind power stations Site selection requirements for wind power stations: 1: Generally, the average annual wind speed is required to be above 6 meters/second (at a height of 60-70 meters), and above 5.8 meters/second in moun

Site selection requirements for wind power plants

Site requirements for wind power stations:

1: Generally, the annual average wind speed is required to be above 6 meters/second (at a height of 60-70 meters), and above 5.8 meters/second in mountainous areas.

2: The cumulative number of hours in a year with wind speeds of 3-25 meters/second is more than 2000 hours (3000-5000). 3: The annual average effective wind energy power density is above 150 watts/square meter.

4: The average spacing of each machine is 4-6 times the blade diameter.

5: The grid connection conditions are good, and the wind farm is required to be no more than 20 kilometers away from the connected power grid.

6: More than 300 meters away from residential areas.

7: At present, the unit investment in wind power projects is 7,000-10,000 yuan/kilowatt, and the investment in a 50,000-kilowatt wind power plant is about 400-500 million yuan.

8: For the development of wind power plants, the local municipal government first signs a cooperation agreement with the enterprise that intends to invest in the development. The enterprise will carry out preliminary wind measurement work according to the scope specified in the agreement. After obtaining the wind measurement data, carry out project demonstration work. If the demonstration can meet the development requirements, the corresponding approval procedures can be started, and the preparation of pre-feasibility study and related preliminary work can be carried out. After passing the pre-feasibility study review, the feasibility study report and other special reports can be prepared. After completion, the project will be reported to the provincial or autonomous region development and reform commission, and the province will apply to the National Energy Administration for approval. After approval is obtained, construction of the project can begin. The entire project cycle from start to production is about four years.

9: In addition, a series of factors such as electricity price, wind direction, topography, geology, climate, environment and road traffic also need to be considered.

How big of a wind farm does it require a wind measuring tower?

There are two points:

Wind turbines do not generate electricity all the time. When there is no wind, it still needs to be on standby;

The height of modern megawatt-level wind turbines is generally 65-90 meters, and they are in the unobstructed wilderness. If there is no wind when you stand upstairs, there may be two reasons: First, your building is not high enough. The most common 80-meter-high wind turbine is equivalent to a 25-30-story building. The second floor is built in the city. There are too many buildings in the city, which makes the wind unstable and turbulent everywhere. For example, a city is like a river bottom with many large rocks, and the water flow is unstable and uneven. So when you stand upstairs, there may be no wind at times and gusty winds at times. The wind turbine is in the wind field, there is no obstruction, the wind speed is stable and lasts for a long time (wind measurement and corresponding simulation calculation are required). Moreover, the specific positions of the fans are calculated to ensure low turbulence and stable wind speed.

So, the wind upstairs is different from the wind field, and the height of the building is different from the height of the wind turbine. If you can’t feel the wind when you stand upstairs, it doesn’t mean that wind power cannot be generated.

According to the "Interim Measures for the Management of Wind Power Development and Construction", Chapter 3, Article 13, wind power project applications must submit wind resource assessment results, so it does not matter the size of the wind farm. All neededRequire wind resource assessment results. If you need to build a wind measuring tower, we recommend Eternal Communication.

The requirements for the location of the wind measurement tower are as follows:

1. Avoid the influence of terrain;

2. There should be no tall buildings, trees, etc. near the location of the wind measurement tower. For obstacles, the distance from a single obstacle should be greater than 3 times the height of the obstacle, and the distance from rows of obstacles should be maintained at more than 10 times the maximum height of the obstacle;

3. The location of the wind measurement tower should be at Within 5km of the wind farm and not affected by the wake of the wind farm, the location should be upwind of the main wind direction of the wind farm;

4. The number of wind measurement towers depends on the complexity of the terrain, climate characteristics and installed capacity of the farm. Certainly. For wind fields with relatively flat terrain, you can choose to install a wind measuring tower. For wind fields with complex terrain, two or more wind measuring towers should be installed. Click to get the preferential policy

If you want to know more about the wind measurement tower, it is recommended to choose Eternal Communications. The communication tower body of Yongheng Communication Company generally adopts four-column angle steel or steel pipe structure, and is equipped with lightning rods, working platforms and ladders. The steel of the tower body is made of Q235 steel. The material origin is Baosteel, Shougang, Handan Iron and Steel, Tangshan Iron and Steel, etc. Its technical conditions should comply with the provisions of the GB:700-88 standard; at the same time, the steel components of the tower body are hot-dip galvanized for anti-corrosion treatment, guaranteed for 50 years No rust; quality you can trust.

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