Wind Power Project Structure
Wind turbine units: These are the core components of wind power projects, including blades, hubs, main shafts, generators, gearboxes, braking systems, and more. The blades are responsible for capturing wind energy and transmitting it to the rotor hub, while the hub serves as the connection between the blades and the main shaft. There are various types of wind turbine units, ranging from micro, small, medium, and large-scale turbines to megawatt-class wind turbines, which are classified according to their operating modes and the status of the rotor shaft.
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The structure of wind power projects mainly includes the following components:
Wind turbine units: These are the core components of wind power projects, including blades, hubs, main shafts, generators, gearboxes, braking systems, and more. The blades are responsible for capturing wind energy and transmitting it to the rotor hub, while the hub serves as the connection between the blades and the main shaft. There are various types of wind turbine units, ranging from micro, small, medium, and large-scale turbines to megawatt-class wind turbines, which are classified according to their operating modes and the status of the rotor shaft.
Box-type substations (box substations): Box-type substations are used to step up the electrical power generated by wind turbine units. There are several types of box substations, including American-style, Chinese-style, and European-style substations. Each type differs in terms of structure, size, and price, making them suitable for different application scenarios.
Collector lines and transmission lines: Collector lines are responsible for gathering the electrical energy from multiple wind turbine generators and transmitting it to the step-up substation. Both collector lines and transmission lines can be implemented either as overhead lines or underground cables; the specific choice depends on topographical and environmental conditions.
Step-up Substation: The step-up substation further increases the voltage of electrical energy—typically from 35 kV to 110 kV—and then transmits it to end-users via grid substations. The step-up substation includes a main transformer and other related equipment, ensuring efficient transmission of electrical energy.
Power grid substation: This is the stage where electrical energy is finally connected to the power grid, responsible for further transmitting and distributing the electricity from the step-up substation to users. 3
| Soil type of stratum | Soft rock and clay |
| Minimum turning curve radius | 250m |
| Maximum slope | 3.50% |
| Total length | 9m (approximately) |
| Total weight | 370 tons (approximately) |
| Excavation diameter | 6,400mm |
| Outer diameter of front shield | 6,390mm |
| Outer diameter of the shield | 6,380mm |
| Outer diameter of tail shield | 6,370mm |
| Shield tail gap | 45mm |
| Total equipment power | 1650kW (approximately) |
| Maximum excavation speed | 80mm/min |
| Maximum thrust | 42575kN |
| Shield tail seal | 3 rows of sealing brushes |
| Soil pressure sensor | Three, on the earth pressure wall |
| Hydraulic sensor | 4, 1 for each propulsion cylinder group |
| Main bearing life | 10000 hours, according to DIN ISO 281, L10 |
| Maximum work pressure | 3bar |
| Maximum design pressure | 4.5bar |
| Including the total length of supporting facilities | 72m |
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