Tomorrow, January 1, 2024, another new energy project on the Qinghai-Tibet Plateau, the world's largest wind farm in ultra-high altitude areas, the Nagqu Ouma Tingga 100 MW wind power project, will also be officially put into operation. It can send 200 million kWh of electricity to Nagqu City in a year, meeting the annual electricity demand of 230,000 people. Generally speaking, the altitude is between 3500 meters and 5500 meters, and we define it as ultra-high altitude. If it exceeds this altitude, it is called extremely high altitude.
The reporter of the main station visited the world's largest wind farm in the ultra-high altitude area.
Today (December 31), the staff did the last physical examination of these wind turbines standing on the plateau before they were put into production. The reporter also followed the staff to the project site and climbed to the top of the 100-meter-high wind turbine to see the report that the reporter had just sent back.
CCTV reporter Zhang Congjing: We are now on the way to the Ouma Tingga Wind Farm, and now the altitude has reached more than 4,600 meters, and we can already see the wind turbines in the distance. Look at the roadside, there are so many yaks walking leisurely. Along the way, we also met small animals such as pikas and Tibetan antelopes. Just how spectacular the world's largest wind farm at ultra-high altitude is, we give you a sneak peek before it goes into production.
This is the Omatinga Wind Farm, which is now more than 4,800 meters above sea level. We can see that there are six or seven wind turbines in front of us, and the entire wind farm has 25 wind turbines, distributed in 140,000 square meters.
CCTV reporter Zhang Congjing: You can see through our lens that a wind turbine is distributed on various slopes of the plateau, with huge blades rotating in the wind, continuously producing green electricity. Not only are there rolling snow-capped mountains, but you can also see that the Qinghai-Tibet Railway surrounds the wind farm, and trains pass by from time to time.
It is about to be put into production, and the wind farm is doing the final trial operation work in the past few days, and the maintenance team is now testing the wind turbine, and we are also following the master to take a look at the wind turbine.
CCTV reporter Zhang Congjing: I have followed the staff to the top of the fan, after coming up, I really realized, what is called a glance at the mountains, at this moment I think it is on the Qinghai-Tibet Plateau and then climb to the fan, now the altitude is nearly 5,000 meters. You can see that the tip of the blade is red, which is a warning tape, in order to prevent the plane from colliding. This red light, which flashes until night, can also serve as a reminder. Now the masters are checking the anemometer.
Staff: It is very memorable to put into production and meet the New Year, we have a small ceremony, and we want to paste the word blessing on this wind turbine.
CCTV reporter Zhang Congjing: This may be the highest altitude you see the word "Fu", we look forward to the smooth commissioning of the wind farm, and I wish you all a happy new year!
News link: Maritime desert Gobi steppe The big windmill can adapt to different environments.
Now, not only on the plateau, but also on the sea, in the desert, in the Gobi, and in the steppe, if there is wind, there will be a large windmill made in China. So what is the difference between these big windmills in different environments?In extreme environments, how to keep wind turbines running safely?
Generally speaking, environmental factors such as temperature, humidity, salt spray, low pressure, high wind, and lightning have an important impact on the performance of wind power generation equipment.
Not long ago, the temperature dropped sharply in many places in China, and the temperature dropped to minus 39 degrees Celsius at the Three Gorges Energy Yichun Laobaishan Wind Farm in Heilongjiang. The traditional stainless steel material has low sensitivity to low temperature, and all the blade metal materials used in the unit are replaced with aviation structural steel with better low temperature resistance to achieve the upgrade of cold protection and warmth protection.
However, in the desertification areas of Northwest China, North China, Northeast China, etc., the wind and sand are large, the climate is dry, and the wind speed changes drastically. Here, the sealing of the connecting part of the fan is upgraded to further prevent dust from entering the unit and enhance the sealing. Of course, in addition to the design of the wind turbine hardware, it is also necessary to realize remote intelligent control through sensors all over the machine body to ensure the safe and efficient operation of the fan in different complex environments.
Xu Ang, technical director of a company: Taking the offshore intelligent wind turbine as an example, when the wind turbine is affected by a typhoon, we will monitor the distance and intensity between the typhoon and the wind farm in real time through the meteorological early warning platform, and adjust the wind angle of the wind turbine in advance through the Beidou system to ensure that the wind turbine can effectively cope with the impact of the typhoon.
Taking the desert Gobi scenario as an example, in the operation process of the wind turbine, the impact of the wake generated by the front exhaust fan on the rear exhaust fan will lead to the reduction of the power generation of the rear exhaust fan.
The installed capacity of wind power accounts for 14 of the country's power generation capacity4%
Continuous breakthroughs in technology have greatly accelerated China's wind power construction. According to the latest data, China's installed wind power capacity has exceeded 400 million kilowatts, accounting for 14% of the country's power generation capacity4%, maintaining the world's first place for many years. It not only accelerates the formation of the world's leading wind power industry system, but also provides more green kinetic energy for China's economic development.
Since the beginning of this year, from the blue sea to the snowy plateau to the countryside, large wind turbines have risen from the ground and rotated in the wind, achieving new breakthroughs one after another.
In the waters off Fujian, a 16-megawatt offshore wind turbine once again set a new world record for single-day power generation by wind turbines.
On the Qinghai-Tibet Plateau, the world's highest wind turbine overcomes the difficulty of thin air on the plateau and continues to transmit electricity stably.
In the Central Plains, decentralized fans stand in the fields, providing clean electricity for the beautiful countryside.
Today, from the localization of the main bearing materials and manufacturing of core components for the first time, to the breakthrough use of carbon fiber materials in the main beam structure of the blades, the weight reduction of 20%, the localization rate of China's super-large wind turbines has reached more than 95%, and the localization rate of key core components such as generators and gearboxes is close to 100%.
Li Chuangjun, Director of the New and Renewable Energy Department of the National Energy Administration: Promoting the large-scale and base-based development of wind power in China will also further drive the development of related equipment manufacturing industry.
Today, nine new energy bases have been built across the country, and the installed capacity of wind power has gradually developed from the "Three Norths" region to the central and southeast regions, covering all parts of the country. China has become the world's largest wind power equipment manufacturing base, accounting for more than two-thirds of the global market and exporting to 49 countries and regions around the world.
*: CCTV news client.