As wind power technology advances, the capacity of individual wind turbines continues to grow, creating greater heat dissipation challenges. Efficient cooling is essential to improving power density and ensuring long-term operational reliability for large-scale offshore wind turbines.
Through a strategic collaboration, CRRC Yongji Electric, the Chinese Academy of Sciences (CAS) Ganjiang Innovation Research Institute, and the CAS Institute of Electrical Engineering successfully developed and applied a new evaporative cooling system, addressing the increasing thermal demands of high-power offshore generators. This breakthrough enhances cooling efficiency, reduces motor loss, improves insulation performance, and strengthens sealing technology, supporting the next generation of offshore wind turbines.
Key Technological Advancements
Evaporative cooling circuit optimized for wind turbines, leveraging phase-change heat transfer to significantly enhance cooling performance.
Low-loss motor design, using optimized materials and structural refinements to reduce eddy current losses and improve efficiency.
Advanced insulation technology, featuring electric field simulation analysis to reinforce insulation in high-stress areas.
Next-generation sealing system, rigorously tested under vacuum pressure, vibration, and extreme conditions to ensure long-term reliability.
Innovative rare-earth permanent magnet materials, reducing heavy rare-earth content while improving magnetic performance and lowering costs.
This milestone marks a significant step in China’s independent development of high-power offshore wind technology, establishing a fully localized production chain from design to manufacturing. It strengthens China’s global competitiveness in offshore wind power equipment and expands the utilization of marine energy resources.
The R&D process was highly time-sensitive and complex, requiring seamless coordination between expert teams. Engineers from both institutions worked closely to overcome design and manufacturing challenges, successfully advancing the project from initial concept to full-scale prototype testing.
The launch of this project reinforces CRRC Yongji Electric’s role as an industry leader, demonstrating its commitment to innovation-driven development and advancing global wind energy solutions.
