en.Wedoany.com Reported - On May 18th, the ultra-high-altitude, maximum-power wind turbine unit developed by CRRC Zhuzhou Institute—the 9.1MW D220 doubly-fed turbine—successfully completed its first unit hoisting in Haixi Prefecture, Qinghai Province. This innovative, high-quality project marks the 20th anniversary of the Zhuzhou Institute's wind power division. This significant milestone represents a landmark breakthrough for CRRC Zhuzhou Institute in the ultra-high-altitude wind power sector, once again demonstrating the confidence and strength of Chinese wind turbine manufacturers in challenging limits and scaling the heights of science and technology.

01 Technology Leadership, Core Breakthroughs

The 550MW Wind Power Project in Haixi Prefecture, Qinghai Province (hereinafter referred to as the "Haixi Project") is located in Dulan County, Haixi Prefecture, Qinghai Province. Featuring rugged terrain and abundant wind resources, the highest turbine location reaches an altitude of 4,500 meters. It is not only the wind power project with the largest single-unit capacity in global ultra-high-altitude areas but also the highest-altitude wind power project in the Qinghai region. The project has a total installed capacity of 550MW, comprising 61 units of the 9.1MW D220 doubly-fed wind power turbines, specially designed by CRRC Zhuzhou Institute for high-altitude environments.

Leveraging CRRC's mature 10.xMW product platform, this turbine is tailored for ultra-high-altitude areas above 4,000 meters. The project innovatively adopts a combination of "9.1MW single-unit capacity + 108-meter length blades," utilizing high-lift airfoil design and an intelligent optimization control system. This significantly enhances wind capture capability and power generation efficiency, ensuring the unit operates efficiently and stably under complex conditions such as high altitude, low air pressure, and super-strong wind conditions, thereby delivering a stable output of clean electricity for high-altitude regions. Furthermore, through comprehensive optimization of the cooling, lubrication, and hydraulic systems, and enhanced insulation design and lightning protection capabilities, the electrical safety of the equipment is significantly improved in harsh environments with intense UV radiation and high lightning storm frequency. Upon completion, the project is expected to provide 1.884 billion kWh of clean, reliable green energy annually, equivalent to saving 565,200 tons of standard coal and reducing carbon dioxide emissions by approximately 1.585 million tons, yielding remarkably significant energy-saving and emission-reduction benefits.

02 Profound Heritage, Unceasing Progress

CRRC Zhuzhou Institute possesses deep technical accumulation and extensive practical experience in the high-altitude wind power sector. As early as 2019, CRRC Zhuzhou Institute led the compilation and release of the national standard "High-altitude Wind Turbine Generator Systems." To date, nearly 3,000 "CRRC-made" high-altitude units are operating stably across various regions, demonstrating excellent performance characterized by being "robust," "free from oxygen deficiency," and having "no altitude sickness": The Gansu Tianshuibu Wind Farm was rated a 5A-level wind farm in Northwest China, with unit availability exceeding 99.5% for three consecutive years; the Yunnan Wuzipo Wind Farm has repeatedly won first and second prizes in the national wind farm benchmarking competition, achieving a site-wide availability rate of 99.44%; the Ningxia Xihuashan Wind Power Project successfully won the dual awards of "2017 Best Asian Wind Power Project" and "Global Best Wind Power Project of the Year." In 2024, the Tibet Changdu Basu Project achieved full-capacity grid connection, setting new global records for both the highest altitude of an operational wind farm and the single-unit capacity in high-altitude areas. Now, the successful hoisting of the first unit for the Haixi Project once again breaks the records for the largest single-unit power and longest blade length in global ultra-high-altitude regions, fully validating CRRC Zhuzhou Institute's profound expertise and industry-leading capability in ultra-high-altitude wind power equipment. It also accumulates valuable experience for the subsequent development of wind turbines for even higher altitudes and larger capacities.

03 Scaling New Heights, Endless Advancement

As a system solution provider in the global clean energy sector, CRRC Zhuzhou Institute will continue to increase investment in wind power technology research and development, continuously enhance new quality productive forces, and serve the development of green energy in high-altitude and complex environments with more efficient and reliable products. It will continue to join hands with partners to contribute greater strength to achieving China's "dual carbon" goals and the global clean energy cause.

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