China must improve the technical design capability of wind turbines

Wind energy is an important development direction of the new energy industry in the world. In 2009, China's newly installed motor capacity has ranked first in the world, and the cumulative installed capacity is the second in the world, becoming a major wind energy utilization country. However, behind the rapid development of China's wind energy industry, there are many potential problems. In this regard, experts conducted in-depth discussions on the High-Tech Fair and the New Energy and Low Carbon Development Summit, and reminded relevant companies and scientific research institutions to improve the overall design capability of wind turbines and build a national-level research center.

Anil Kane, chairman of the World Wind Energy Association, said that the wind energy industry is one of the fastest growing industries in the world. The compound growth rate in the past 10 years has reached 7%. No industry in history has been able to increase at this rate. In 2009, about 20 million people were employed in the entire industry. From the perspective of installed capacity, the world is expected to exceed 200,000 megawatts in 2010, of which the United States is the No. 1 in China, and China ranks fourth in 2009.

He Dexin, chairman of the China Wind Energy Association, said that China's wind energy industry has developed rapidly in recent years, with total installed capacity exceeding 40 million kilowatts in 2010, and there are 3 wind energy companies in the country entering the world's top 10. In addition, China's wind power production capacity is also enhanced, blades, gears, generators can basically meet domestic demand, and has begun to export.

In the face of the rapid development of the Chinese wind energy industry, we must remain sober. He Dexin pointed out that at present, the overall design capability of China's wind turbines is still relatively weak, especially based on China's wind conditions for independent design, the ability to research and develop new types of wind turbines is seriously inadequate, there is no independent development of wind turbine design software system. Second, the mainstream of China's wind turbines is 1.5-2 MW. Although 3 MW is already in use, it needs further development. The third is the lack of key components, China's fan bearings, converters, machine control system is still mainly dependent on imports. Fourth, China's public technology service platform still lags behind the development of the wind power industry, affecting the independent innovation and sustainable development of wind power technology. In addition, China’s construction of wind power at sea has just started and relevant research is still pending.

“Our wind power plant construction is not the same as in Europe. We adopt a large-scale, high-concentration, high-voltage, long-distance transmission model. This poses a problem. How does wind power and the grid develop harmoniously, combined with large-scale energy storage? Can we solve some problems? In addition, we must conduct research on the wind characteristics of our country and establish our country's resource bank map. Only in this way, we can design and produce wind turbines to better adapt to our national conditions." He Dexin said.

In order to solve these problems, He Dexin believes that it should absorb more funds to invest in wind power research and production, and diversify the investment channels including private enterprises. At the same time, a national-level wind power research center will be established to improve the standards, testing and certification systems for wind power technologies. This platform construction can rely on the cooperation of wind power companies and scientific research institutes, so that scientific research results can be quickly transformed into products. Finally, we must strengthen international exchanges and cooperation.

Experts predict that China's wind energy installed capacity will reach the top in the world next year.