Sany can achieve sales of more than 700 million yuan

With the changes in the "window map" of China's wind power, low wind speed regions with better grid connection conditions are increasingly favored. However, in order to achieve high-efficiency power generation in a low wind speed area, there must be a generating unit with a stronger power generation capacity. Sany Heavy's key product, the SE11520 high-speed doubly-fed wind generator, is a weapon that is suitable for generating electricity in low wind speed regions. It not only generates high power output, but also has high economic efficiency. The product achieved sales of more than 700 million yuan last year and the market is expected to be good this year.

The so-called low wind speed regions mean areas where the annual average wind speed is less than 6 meters/second, and such areas account for more than 60% of China's land area. After investigation, it was found that there was already a product launched for the low wind speed area, and the diameter of the wind wheel did not exceed 110 meters.

"If we want to make wind-efficient resources and realize efficient power generation, we will need more wind-capturing areas and stronger wind-capability," said Chen Xiuqiang, director of the Sanyue Institute for Energy Research Institute, which is Sany developed the original intention of SE11520 high-speed doubly-fed wind generator set.

According to reports, Sany Heavy was able to invest in the development of the product in 2013. In November 2014, the SE11520 high-speed double-fed wind turbine was trial-built. This is a wind power generator with a diameter of 115 meters and a rated power of 2.0 MW. It is suitable for medium and low wind speed areas with an average annual wind speed of 7.5 meters per second or less, so that people in low wind speed areas can also enjoy clean energy.

And, this is a more "smart" wind turbine. According to the project manager Huang Hao, on the SE11520 high-speed double-fed wind turbine, the control part can be adjusted in real time according to the actual environment of the site.

"Most wind turbines have only one control path, but there are multiple paths on the SE11520." Huang Wei said that the fan can automatically adjust the power - speed relationship to adapt to changes in the environment (such as air density, temperature, humidity) and manufacturing The impact of factors such as error, the fan operating parameters and the actual environmental conditions, the fan's aerodynamic characteristics, mechanical characteristics such as the perfect match, effectively increase power generation, more intelligent.