20kw pitch controlled wind turbine
20kw pitch controlled wind turbine introduce
20kw pitch controlled wind turbine adoptspassive electric pitch controlled tailless wind turbine , controller will test the rotation speed once the rotationspeed is too higher , it will push the blades angle twist and change itself aerodynamic characteristic to controlwind turbine rotation speed , till the blades direction same with the wind direction and stop workingmake the generator output power steady and constantly .el gent control by computer rs 5485 communication
20kw pitch controlled wind turbine features
The variable-pitch unit can adjust the attack angle of the air flow to the blade according to the wind speed. Variable pitch adjustment is to rotate the blade along the longitudinal axis of the blade, change the position of the blade, control the energy absorption of the wind wheel, and maintain a certain output power. Advantages of pitch technology: good starting performance, stable output power, safe shutdown, etc
Blades rotor: Blades material is reinforced glass fiber. It has special film on the blades edge. The blades are high bending strength, weather-proof, long work life.
Generator: Blades rotor drives directly. Lower rotation speed, PMG synchronous generator, over load capacity is 150%.
Pitch controlled wind turbine: Adopt stable pitch controlled system, can be used in variable environments Low failure rate
Speed regulates Performance: The precision of pitch controlled system is 10 r/min, and never over speed at gale.
Low Start-up Wind Speed: According to different wind conditions, adjust the blade initial angle to make wind turbine start up at low wind speed.
The start-up wind speed is 4 m/s.
Manual brake: Reliable braking system, easy to operate, can stop wind turbine at any time.
Automatically undo cable: Slip ring undoes the cable automatically. Ensure the cable has not twist. Double
carbon brushes structure make sure power transfer without failure.
Well-adapted Wind turbine: The operation wind speed is 4-35m/s.
20kw pitch controlled wind turbine
| 20kw variable pitch wind turbine | |||
| Brand | GROWTH | Item | FD10-20kw,FD12-20kw |
| Blades rotor diameter | 10m | Blades material | Reinforce FRB |
| Rated wind speed | 12m/s | Blades number | 3pcs |
| Start up wind speed | 4m/s | Working wind speed | 4-35 |
| Survival wind speed | 50m/s | working system | off/on-grid working system |
| Speed regulated method | Pitch control | Stopping method | manual brake |
| Generator type | 3 phase AC permanent magnet generator | working voltage | 240-500VDC |
| Rated output power | 20KW | Max output power | 25KW |
| Rated rotation speed | 170rpm | Stand alone Tower height | 15m,18m |
The pitch system is a device installed in the hub as air brake or to control the power of the unit operation by changing the blade angle (pitch). Its main function is: pitch function, that is, to make the blade turn to the feathering direction through fine angle change, change the blade rotation speed, and realize several groups of power control. This process is often carried out after the unit reaches the rated power. The braking function is to rotate the blades to the feathering position through the pitch system to produce the air braking effect, and work with the mechanical braking device of the shafting to make the unit stop safely.
