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China wind firm launches country’s largest low wind turbine

“Ultra-low” wind speed direct drive turbine has a 93m rotor diameter with a rated capacity of 1.5MW

The GW93/1500 direct drive turbine is designed for low wind sites
The GW93/1500 direct drive turbine is designed for low wind sites

China is set to boost wind power in countries with low wind speeds after launching the country’s largest turbine of its kind. Chinese wind firm Goldwind has announced the launch of its GW93/1500 ultra-low wind speed permanent magnet direct-drive (“PMDD”) turbine, which it says has the largest rotor diameter and the highest power generation efficiency to similar turbines in China.

The group’s latest R&D achievement leverages its well-established 1.5 MW PMDD turbine platform as the foundation for a new series with power generation efficiency that is among the highest in the industry.

The GW93/1500 ultra-low wind speed PMDD turbine has a 93m rotor diameter with a rated capacity of 1.5 MW. It is designed for IEC class S wind resource areas where the annual average wind speed is lower than 6.5 m/s. The wind turbine has the largest rotor diameter and the highest power generation efficiency among comparable products in China.

According to its designed capacity, the GW93/1500 series can generate power of more than 2,000 standard hours per year based on an annual average wind speed of 5.5 m/s (with reference to the standard air density and Rayleigh distribution). The company plans to install its first prototype in Zhucheng, Shandong at the end of April this year.

Goldwind’s GW93/1500 PMDD turbine uses a permanent magnet generator and a full-power converter with grid friendly properties. The turbine meets national grid connection requirements and meets zero voltage ride-through standards.

Ultra-low wind speed areas have a low annual average wind speed of 5.5 m/s to 6.5 m/s. As wind power technologies improve, the available resources in low wind speed and ultra-low wind speed areas have significant potential. There are also many ultra-low wind speed areas in close proximity to urban with strong grid capacity.