Main and auxiliary collocation, cost-effective and efficient - a new trend in the hoisting of mixed tower fans

With the rapid development of wind power technology in China, in the three years from 2020 to 2023, the capacity of mainstream onshore wind power models has climbed from 2.5~3MW to 5.5~6MW, and even reached 10MW, and the maximum height has also increased from 130m~140 to more than 180m.

(Data from the Internet: Energy Magazine Official & China Industry Network)

Under the dual challenges of structure and cost, mixed tower fans are more and more used due to their unique advantages. There is data showing thatIn 2023, the proportion of wind turbines with mixed towers accounting for 15% of the wind power above 140m won bids, of which 60% of the wind turbines are about 160m in height (concrete tower section 130~140m)。 As a result, a new and new lifting solution has also emerged.

Recently, the 150,000,000 wind power project in Dingbian, Yulin, Shaanxi Province, was adopted by Inner Mongolia Dongran Electric Power Engineering Co., LtdSCC15000TM + SAC9000C8-8The program is involved in the construction of the project.

The project consists of 30 sets of 5MW mixed-tower wind turbines.

The center height of the wind turbine hub is 160m

SAC9000C8-8 installation of the lower concrete tower section

SCC15000TM Install the steel tower at the rear end

SAC9000C8-8 adopts 141.8m (83.8+58) working condition and is responsible for the installation of the concrete tower: the 5MW mixed tower fan installed in the project has a height of 131m and a total of 36 sections.

The number of concrete tower sections is large, the hoisting operation time is long, the hoisting scheme of the main / auxiliary equipment - SAC9000C8-8 installation of concrete tower sections, SCC15000TM the installation of steel tower/nacelle/hub/blade, which can realize the connection of the front and rear processes, the construction of two working faces at the same time, faster than the construction speed of a single main crane, and the cost of two main crane equipment is lower, and it has become a new operation plan for mixed tower hoisting.

For the technical trend of large-scale wind turbines, which model will become the mainstream next, whether it is 10MW or 12MW, and what kind of changes will occur in wind power hoisting equipment?