There are several reasons for this. If the wind speed is relatively low, close to the starting wind speed of the wind turbine, due to terrain reasons, the wind speed will be different in local areas, and this situation will occur. . Also, if the unit breaks and someone repairs it, it will shut down. Additionally, the power grid company imposes power generation load restrictions on the power plant. For example, the wind is relatively strong now and can generate 50,000 degrees per hour. but they only produce electricity per hour. If there is 20,000 kilowatt hours of electricity, the unit will be stopped and the wind turbine will not spin.
Wind turbines have: "waiting state", "inspection state", “fault state” and “overload state” “Natural cause” “Power limitation”.
Waiting for the wind: the wind is very weak and cannot turn the wind turbine to produce energyelectricity, but it always faces 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 work.
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, earthquakes, floods, etc.
Power limitation: The national grid does not need as much electricity, so some of it will be shut off.
I think your problem seems to be that there is no wind, so it is automatically looking for wind or malfunctions. But when it stops a lot, the wind is very weak, although people can feel it. It's a huge thingrm after all, so it hasn't reached the point of producing electricity. When I was working on the wind turbine, the wind was very strong, the higher the height, I hope you can be satisfied with it. my answer, because I am a wind turbine worker myself. This is all I typed myself and I hope it gets adopted.