HY-20KW Wind Generator CE, RoHS

20kW wind power generator has Active Variable Pitch system,it can work in 0-25m/s wind speed

Our company produce and sell the middle and small type wind generators the products type range from 2kw to 30kw which could Variable Pitch in high wind speed. (0~25m/s)

How to Variable Pitch in different wind speed by wind turbine

1. Under the wind speed of 0m/s ~ 3m/s, the turbine blade remain static, and the start-angle formed between the blade and turbine plane; The blade angle will under a start-angle, the blade is most easily to be started up.

2. As long as the wind speed reached 3m/s, the blades will begin to rotate, during the rotation, the outermost edge of the blade will be driven by the centrifugal force generated by the rotation of the blade to tilt toward the turbine plane, the blade angle will decrease until 0° When the blade is in parallel with the turbine plane; At this angle, the turbine has nearly reached its rated output power.

3. When the wind speed is between 12m/s ~25m/s, the blade will keep adjusting its position forth and backward slightly to let the angle fluctuate a little bit but maintain at around 0° Roughly, so as to stabilize its rated power.Within the wind speed of 12m/s ~ 25m/s, when the wind has exceeded its rated speed, the 3PCS centrifugal hammers will produce a strong traction to the blades by the centrifugal force, so the blade angle will continue to decrease and turn into a negative angle, under this negative angle, the rotation of blade will produce a resistance on the rotation of turbine blade to slow down the rotation and protect the wind turbine from over speed operation, the maximum RPM of the turbine will be no more than 180 RPM.

4. When the wind speed over 25m/s, if the rotate speed can't be controlled by centrifugal hammers, the Wind controller will send a brake signal to order brake system make the blade anage turn to 90 degrees, after blades turn to 90 degrees, 3PCS blades will not get any lift from wind and stop running. On other way, anemometer also will send the brake signal to order brake system once it get a over wind speed (The over wind speed can be set by manual in advance)

HY-20KW Wind Generator CE, RoHS