120 units! The units of Sany Renewable Energy's first large megawatt base project have all been hoisted

In the era of parity, how to reduce the cost of electricity and ensure the return on investment of customers has become a common topic in the industry. Sany Renewable Energy Unit has the technical characteristics of "high, large, long, light and intelligent", providing customers with the "optimal solution" for wind farm construction in the era of parity.

The Sany Renewable Energy SI16050 wind turbine used in Shangdu Wind Power Base has a hub center height of 100 meters, which is suitable for local wind resource conditions and can effectively ensure power generation efficiency. At the same time, the unit uses an ultra-low load design, so that the total weight of the tower (including internal accessories) of a single unit is reduced to 219 tons (the conventional weight of the tower of the same height is about 230 tons), which can effectively reduce the hoisting and construction costs of the project.

In view of the site situation of severe snow in winter and large wind and sand in spring and autumn in Shangdu area, Sany Renewable Energy Unit adopts the box transformer upper technical route, which can not only avoid the adverse effects of snow and wind and sand on the box transformer, ensure the normal operation of the fan, but also save cables, reduce land occupation, and effectively reduce the cost of electricity. It was learned from the customer that compared with the box transformer lower solution, the project eliminated the excavation and pouring links of the box transformer foundation in the infrastructure and hoisting stage, and used the engine room and box transformer integrated hoisting scheme, which greatly reduced the project volume, and a single unit can complete the electrical installation in only 1-2 days (a single unit using the box transformer lower solution needs 3-4 days to complete the electrical installation). It is estimated that compared with the box transformer sub-installation plan, the construction cost of the project will save tens of millions of yuan and reduce the permanent land acquisition by 1,036 square meters. In addition, the use of the box transformer top solution also saves the construction and maintenance cycle and ensures customer benefits.

High stability - design advantages are the core

The first batch of wind turbines connected to the grid of Shangdu Wind Power Base are all Sany Renewable Energy SI16050 wind turbines, which have maintained high and stable operation since September 27, 2022, and learned from customers that among the first batch of units of the project to enter commercial 240-hour trial operation, the one-time pass rate of Sany Renewable Energy units is as high as 82.5%.

The stable operation of Sany Renewable Energy Unit benefits from the design advantages of its products. The SI16050 model adopts control strategies such as yaw precise wind control, pitch intelligent optimization control, optimized control damping and flexible braking of high-speed brakes, and the whole field control adopts advanced intelligent wind field control technology, according to the surrounding environment of the wind turbine and its own operating state, for the wind turbine torque, pitch, yaw and other parameters to make more accurate adaptive adjustments, reduce the load and yaw error of the unit, improve the power generation efficiency of the unit, and make the unit in the best operating state. As of early May 2023, the utilization rate of the first batch of grid-connected units reached 99.58%, with a total power generation of 296.02 million kWh.

The most reliable - high quality and efficiency are the most reliable

Guo Yonglong, project manager of Sany Renewable Energy, led the team to show the spirit of hardship and hard work, overall arrangement, and work day and night in the tackling stage, successfully realized the grid connection of the first batch of units, and successfully completed the 9.30 task goal of our company! It has fully carried forward the work style and high professionalism of Sany Renewable Energy to be jealous of arrogance and pursuit of excellence, and has also won the recognition and unanimous praise of our leaders. The owner of Huaneng gave Sany Renewable Energy high praise in the letter of thanks.

After the unit is officially put into operation, Sany Renewable Energy relies on the smart wind farm system to promote the efficient and stable operation of the smart wind turbine through resource sharing and centralized management technology. With the support of the smart wind farm system data analysis platform, the health diagnosis of heavy components of the wind turbine is carried out, and the early warning of wind turbine failure or component failure is realized, and preventive maintenance is achieved, effectively reducing the failure rate of the unit.

In addition to relying on the intelligent operation and maintenance system, the dedication and efficiency of the Sany Renewable Energy service team also provide a guarantee for the stable operation of the unit. At the beginning of 2023, the minimum temperature at the Shangdu site reached more than minus 40 degrees, and under such extreme weather conditions, the Sany Renewable Energy service team was not afraid of the cold and climbed to the top of the engine room more than 100 meters high to repair and operate the wind turbines to escort the stable operation of the units.

From design advantages, to quality improvement and cost reduction, to reliable operation and maintenance, Sany Renewable Energy provides customers with the best solutions in the whole life cycle of wind turbines with systematic advantages, and strives to be a leader in the era of large megawatts. In the future, Sany Renewable Energy will continue to strengthen technological innovation, cooperate closely with customers, and jointly promote the high-quality development of the wind power industry!