On January 6, 2025, an exciting news came from the forefront of scientific and technological research and development in China: the world's first 20MW evaporative cooling semi direct drive permanent magnet wind turbine jointly developed by CRRC Yongji Electric Co., Ltd. and Ganjiang Institute of Innovation, Chinese Academy of Sciences, officially announced its successful offline! This milestone achievement instantly lit up the eyes of the global new energy field and injected a "shot in the arm" for the development of the wind power industry in China and even the world.
In the global trend towards green and low-carbon transformation, offshore wind power has become a new high ground for competition in the energy field due to its abundant resources and stable power generation advantages. However, with the development of offshore wind farms towards farther sea areas and larger single unit capacities, the problems of heat dissipation, losses, and insulation of generators have become increasingly prominent, becoming a key bottleneck restricting industry progress.
CRRC Yongji Electric Motor Company has formed a strong alliance with the Ganjiang Innovation Research Institute of the Chinese Academy of Sciences to form an elite research team. After countless days and nights of dedicated research and overcoming difficulties, this technological giant has finally made a stunning debut. The evaporative cooling technology used in this generator can be considered a major innovation. Compared with traditional cooling methods, it can efficiently remove the heat generated during the operation of the motor, greatly improving the cooling efficiency and ensuring that the generator remains "calm and composed" under high load operation, and stably outputs strong electricity.
At the same time, the low motor loss characteristic makes each kilowatt hour of electricity generated more "value for money", reducing energy waste and improving power generation efficiency. The super strong insulation performance coats the generator with a sturdy "protective armor", enabling it to resist the erosion of complex and harsh marine environments, adapt to harsh working conditions such as high humidity and high salt spray, and ensure long-term reliable operation.
Of particular note is that this generator has achieved full chain autonomy from core technology research and development to production and manufacturing. This not only means that China has completely shaken off its dependence on similar foreign technologies and gained the "voice" in the field of offshore wind power, but also demonstrates the magnificent power of collaborative innovation in China's science and technology industry.
The successful production of the world's first 20MW level evaporative cooling semi direct drive permanent magnet wind turbine is like a shining lighthouse, illuminating the path forward for China's high-power offshore wind turbines and providing a "Chinese solution" for the high-quality development of the global offshore wind power industry. Looking ahead to the future, China's wind power technology will surely ride the wind and waves, bravely move towards farther, deeper, and stronger goals, and continue to contribute to the global energy transformation and sustainable development with great strength.
