750kW U57 Wind Power
Schools, Office Buildings, Resort Hotels, Agricultural Businesses, Manufacturing Plants, Remote Islands
Our new and innovative Gearless 750kW Wind Turbine offer simplicity by eliminating gearbox in the nacelle. Our turbines are reliable, with the highest engineering technology and the result of intensive research and development. With a fully encapsulated PM synchronous generator they are particularly beneficial for weak grids in remote areas
Turbine System
| Model | SURU57 187-750 |
| Rated Kilowatt Output | 750kW |
| Cut-In Wind Speed | 3.0 m/s (6.7 mph) |
| Cut-Out Wind Speed | 25 m/s (56 mph) |
| Rated Wind Speed | 11.5 m/s (25.7 mph) |
| Max Design (Survival) Wind Speed | 59.5 m/s (133 mph) |
| Weight (lbs.) | |
| Design Lifetime (yrs) | 20 |
Turbine Rotor
| Number of Blades | 3 |
| Orientation | Upwind |
| Axis (nominal) | Horizontal |
| Rotation | Clockwise |
| Blade Material | Glass / epoxy compound |
| Rotor Diameter | 57 m (187 ft) |
| Swept Area | 27,465 ft² |
| Rotor RPM at rated output power | 9-28 rpm |
| Speed Control | |
| Normal Shutdown Brake | Aerodynamic blade pitch |
| Emergency Shutdown Brake | Active hydroloc disk brakes |
| Blade Pitch Control | Control pitch controlled variable speed |
| Yaw Control | Active, electromechanically driven with wind direction / speed sensors |
Generator
| Type | Synchronous Permanent Magnet Direct Drive |
| Voltage | 690 VAC |
| Frequency (Hz) | 60/50 |
Transmission
| Type | No gearbox (direct drive) |
Brake System
| Type | Main brake action rotor blade pitch |
Support Towers
| Type & Material | Tubular steel monopole |
BENEFITS & FEATURES
| Model | U54 | U57 |
|---|---|---|
| Rotor Diameter | 54m | 57m |
| Hub Height | 60m | 68m |
| Wind Speed Region | Medium-Low | Low |
- For all wind regimes (wind class 1, 2, 3)
- Maintenance procedures simplified and maintenance time reduced substantially
- Less noise production than gear-box based turbines
Simple & Compactness:
- Direct drive concept without gearbox
- Low speed PM synchronous generator
- Modular construction & flexibility to up-scaling
High Reliability & Availability:
- Two separated roller bearings
- Only torque moment is transmitted to the generator and housing
- Fully encapsulated generator
- Low rotational speed for whole component
Optimal Energy Production:
- Full range variable speed operation at optimal Cp
- Pitch and torque control with smart controller
- Improved generator efficiency by permanent magnet
Grid-Friendly Electricity:
- Generation of electricity power with high efficiency & quality variable operation & pitch control system