At 5 pm on August 31, with the joint efforts of a multi-party project team composed of China's NBDF Cable Technology Corporation, the world's first shallow sea anti-typhoon floating wind turbine dynamic cable system was successfully installed in the South China Sea offshore wind farm. Completion acceptance was completed in the early morning of 1st.
The dynamic cable system for floating offshore wind power adopts the EPCI mode and is undertaken by NBDF and DF Offshore Technology Group. Different from traditional cables, in order to meet the requirements of the harsh environment in the South China Sea, the dynamic submarine cable system has been optimized in many aspects. The coordination of the heavy blocks achieves a relatively stable line shape, which better maintains the compliance of the dynamic submarine cable under the condition of shallow water and large excursion.
The project team started from undertaking the task, and communicated with domestic and foreign experts and third-party certification agencies many times during the design, installation, integration, and testing processes, and learned experience to improve the plan. The technical team dynamics the entire laying process in stages. Simulation to ensure the feasibility and safety of construction.
At the construction site, the submarine cable laying facility ship was fully loaded with submarine cables and more than 30 operators and divers had a clear division of labor and a tacit cooperation. They successfully completed the installation of accessories, dynamic and static submarine cable laying, anchoring device installation, fiber fusion splicing, and terminal landing. And other steps.
"Due to the special position of the floating wind turbine, it is impossible to achieve anchoring near the wind turbine. This time, Dongfang Haigong 01 gave full play to its own advantages. Relying on the DP2 positioning system, it accurately and continuously positioned 2 at a distance of 40 meters from the wind turbine foundation. The days and nights provided a solid guarantee for the construction of the dynamic cable." According to the relevant person in charge of the NBDF, relying on China’s first fatigue test device, NBDF has effectively evaluated the fatigue life of the dynamic cable to ensure the full life cycle of the dynamic cable. Stable application.
The successful application of the NBDF's South China Sea floating wind power dynamic cable system marks the world’s first shallow sea anti-typhoon type, and China’s first floating wind turbine has completed all offshore construction tasks. It has grid connection conditions and will soon be put into operation. China's deep ocean new energy development has laid a solid technical foundation.