This depends on the starting wind speed and working wind speed of your wind turbine, which are both listed in the manual.
Starting the wind speed means that when the wind speed is high, the fan will generate electricity when it rotates (it will still rotate even if it is turned slowly, but there will be no electricity. This is not explained), but this amount of electricity must be very high. Less (because it is not rated wind speed), the normal is 1.8 meters/second (starting wind speed).
The rated wind speed means that the fan can work normally when the wind is at least high (this is very simple, everyone knows it), the normal speed is 3-6 meters/second
Because Each manufacturer designs fans differently, so its start-up and rated wind speed are also different. Please read the instructions.
Why does the wind turbine impeller stop spinning?
If the poster’s wind turbine does not spin in strong winds, the situation may be as follows:
1 .Check whether the three-phase AC line of the generator is short-circuited
2. Whether the fan blades are installed backwards
3. Whether the motor is burned out
4. Bearings Problems
Problems with the other two fans of the original poster:
When a person is on the ground and feels no wind but the fan blades are rotating very fast, this is normal because of course the fan blades are spinning very fast when a person is on the ground. It feels like there is no wind, but if the fan is several meters high, the direction of the wind will be different. The main thing is to check whether the leaves are moving. If the leaves are obviously windy, it is normal for the fan to rotate so slowly, but the other one does not. Turn, what is the distance between the two units? If it is too close, it is normal, because the two units cannot be installed too close, which will affect its overall effect. In addition, the poster should be aware that there must be no surroundings when installing the fan. For high-rise buildings, it is best to install them in open areas.
As far as these conditions are concerned, please check if the above conditions apply
Wind turbines have: "Waiting for the wind Status", "Maintenance status", "Fault status", "Overload status", "Natural causes", "Power limit".
Waiting for the wind: The wind is very small and cannot turn the wind turbine to generate electricity, but it is still facing the wind. The term is "yaw".
Inspection: Regular inspection, maintenance, oil filling, torque adjustment, etc. are carried out every year to maintain the fan, as well as maintenance.
Fault: There is a fault somewhere in the fan and it cannot operate.
Overload: The wind has exceeded the wind speed that the fan can withstand, and the blades become smooth and self-protecting.
Natural causes: such as lightning strikes, earthquakes, floods, etc.
Power limit: The national grid does not need so much electricity, so some of it will be stopped.
I think your problem seems to be that there is no wind, so it automatically looks for wind, or malfunctions. But when it stops a lot, the wind is very small. Although people can feel it, it is a huge thing after all. , so it has not reached the power generation point. When I was working on the wind turbine, the wind was very strong. The higher the height, the stronger the wind. I hope you can be satisfied with my answer, because I am a wind turbine worker myself. These are all myselfI typed it out and hope it will be adopted.