The white three-leaf fan is in the air, and a steady stream of electricity is being converted. In the town of ESTINNES, a suburb of MUS, a French-speaking city in Belgium, the ESPERANCE 'Hope Wind Farm' is here.
'Hoping Wind Farm' is the largest on-shore wind turbine unit that has been put into commercial transport in the world, and it is also an important achievement of China General Nuclear Power Group's European Energy Corporation (“Europe”) advancing to Belgium. From 2014, The first to win the UK CLOVER through bidding, the French FUJIN onshore wind power project started, and Euronergy gradually increased its investment in European new energy projects.
Riding on the country's 'Belt and Road' initiative, Lu Hao, general manager of Europe Energy, believes that today, 'Made in China' is already one of the most recognized labels in the world. I believe that Chinese partners, China's new energy, will go out in the spring. Has arrived.
Visit the interior of a 190-meter high wind turbine: Triple treatment is required before wind power is injected into the power grid
Afar 'Hope Wind Farm' and white 'Windmill' (Direct Drive)' wind turbine towers over the fields. It is only when we really get close to it that it is the world’s largest land-based wind turbine unit that has been put into commercial transport and has the largest capacity. The tip height is about 200 meters, sweeping area can reach thousands of square meters.
According to SAMUEL DEBACK, the operation and maintenance engineer of the wind farm, it is necessary to first hit the ground before the construction of the wind turbine. Each fan is made of concrete and steel. The weight of the fan tower is about 1,000 tons, and the total weight of the machine part is about 700 tons. The diameter of the fan impeller hub is 127 meters long. It is about 135 meters high from the foundation to the center axis of the hub. The entire tower of the fan is assembled using 'building blocks'.
When you look closely, you know that the outside of the fan is spectacular; when you walk into the tower, you can even more shock the internal operation of the fan.
As a clean energy source, wind power is also one of the indispensable representatives of renewable energy. Direct-drive wind turbines need to go through three processes before the current is injected into the power grid: First, the generator in the cabin emits irregular AC power, and the AC power is rectified to convert AC power into DC power. Input the electric cabinet, then convert the direct current into a stable regular alternating current through the inverter transformer, about 690 volts, the frequency is 50 hertz, then change the voltage through the bottom of the tower, and the voltage is from 690 volts to 30,000 volts. In the last wind field Small substations will not be injected into the grid until they are pressurized to 70,000 volts.
At the scene, the reporter saw that there is a control cabinet at the bottom of the fan. The staff can adjust the direction of the wind direction, the angle of the blade, etc. At the same time, the wind speed, impeller speed, wind power, cumulative power generation time, total power, etc. will be displayed on the control cabinet.
In addition, such a tall wind turbine will undergo two inspections each year. The first time there will be about 10 technicians responsible for major overhauls, and the second time about 4 people will be responsible for minor maintenance such as adding lubricants. The internal fan is divided into three segments. Platform, technicians will gradually repair to the highest point.
It is worth noting that although there is a small elevator for 3 persons inside the fan, it takes more than 10 minutes to get to the top. Therefore, if you need to inspect the cable inside the tower or tower, the technician needs to climb. Straight ladder inside the tower.
Because of the conical bottom of the fan, the ladder is about 135 meters high. The technicians need to step backwards when climbing. Recalling the first time climbing, SAMUEL DEBACK mentioned, 'I feel like a giant fan. Like, eat yourself.'
SAMUEL DEBACK also emphasizes that ensuring the normal safe operation of the wind turbine is the most important, so the maintenance work is very critical. As the person in charge, he needs to climb four times a year, and the speed of one-way climbing as fast as 20 minutes has made him a team. The fastest person.
Deepening the clean energy market: The market determines the vitality of technology
At the Euronext Paris headquarters, there was a wall of assets that showed the branding of every step from the initial overseas icebreaking to the recognition of Europe today.
In the process of going out, Chinese companies have always had a lot of ups and downs in acquiring local companies. Since the establishment of Euronergy in 2014, the assets have been distributed in France, the United Kingdom, Ireland, Belgium, Senegal and many other countries. The installed capacity of the company's projects exceeds 88. Million kilowatts, with a total investment of more than 1.2 billion euros.
CGNPC and French companies have a history of cooperation of more than 30 years and have been active in the European market in recent years. Lu Hao believes that the enhancement of self-development capabilities of Chinese companies has made the market more and more wide. 'Historical experience tells us that We can't make progress on our own. The market determines the vitality of technology.
Lu Hao mentioned that Euronergy won the bid for the first offshore floating wind power project in Europe in 2017. Although offshore floating wind power is a new technology during the incubation period, it has received strong support from the French government and is expected to receive a cumulative cash subsidy of 83 million Euros. And low-interest loan support. 'This is also a sensation in the country, there are many domestic companies want to contact us.'
Going out, we must bring it back. Euronergy is sharing its experience in investing and operating wind power projects in Europe with domestic companies. Chinese companies' overseas development experience is gradually accumulating experience and sharing to create new results.
In the face of the next three years' goal of accumulating more than 3GW of new energy assets, Luxi firmly stated that the long-term vision is to become Europe's leading clean energy company and contribute to building a common human fate.