Hebei Zhangbei Wind Farm Blade Protection Project
The wind farm in Zhangbei area, Hebei, is located on an inland plateau with long and cold winters, where extreme low temperatures can reach -30°C. Blade icing on wind turbines occurs frequently. According to wind farm operation and maintenance data, before effective protective measures were implemented, the annual cumulative downtime of wind turbines due to blade icing reached 1,500 hours, resulting in a power generation loss of up to 10%. Additionally, the area experiences strong wind and sandstorms in spring, causing severe abrasion and wear on the blade surfaces from sand particles. On average, the blades require large-scale repairs every 2 years, leading to high maintenance costs.
The wind farm in Zhangbei, Hebei Province, is located on an inland plateau with long and cold winters, where extreme low temperatures can reach -30°C. Ice formation on the wind turbine blades occurs frequently. According to the wind farm's operation and maintenance data, before effective protective measures were implemented, the annual downtime caused by blade icing accumulated to 1,500 hours, resulting in a power generation loss of up to 10%. Additionally, the region experiences strong wind and sandstorms in spring, causing severe abrasion and wear on the blade surfaces. On average, the blades require large-scale repairs every 2 years, leading to high maintenance costs.
Guangzhou Hisenmeike New Materials Technology Co., Ltd. provided an anti-icing peel coating solution for the Zhangbei wind farm in response to this situation. This coating uses Hisenmeike's independently developed inorganic particles combined with polysilazane or siloxane hybrid technology, fundamentally solving the poor wear resistance and weather resistance issues of conventional organic coatings. The coating's surface has a special microstructure, reducing the adhesion of ice on its surface by 80% compared to ordinary blades. When the temperature slightly rises or the turbine operates and generates vibrations, the ice layer easily detaches from the blade surface.
During the project implementation phase, Hisenmeike's professional technicians strictly followed construction specifications to apply the coating on the blades of 50 wind turbines within the wind farm. After completion and commissioning, monitoring over a full winter showed that the downtime due to icing for turbines equipped with the anti-icing peel coating was reduced to 300 hours, and power generation loss decreased to 3%, an improvement of 7 percentage points compared to before. Moreover, after enduring a year of wind and sand seasons, the blade surface wear was significantly reduced. Based on the current wear rate, the blade maintenance cycle can be extended from 2 years to 3-4 years, reducing maintenance costs by about 40%, bringing considerable economic benefits and stable power generation assurance to the wind farm.
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