The twisted blade means that the airfoil and installation angle of the blade are different along the length of the blade, and gradually decrease from the blade root to the blade tip.
The optimal angle of attack can be achieved everywhere on the blade. , to obtain the best lift and higher wind energy receiving efficiency.
Because the rotational speed of the blade increases with the length of the blade, the windward angle continuously changes as the blade extends.
Therefore, in order to maintain the optimal angle of attack in the windward area of the blades, the blades of large wind turbines need to be designed in a twisted form.
Do the blades of wind power generation rotate in one direction? Are the blades always turning to the right or to the left?
Only in one direction.
Wind power generation uses natural wind to generate kinetic energy, and the rotating blades drive a generator to generate electricity. The direction of the wind turbine is fixed, which means it can only rotate in one direction. This is where wind turbines are designed and blades installed according to the prevailing wind direction to maximize rotational efficiency and power generation capacity. The unidirectional wind direction limits the rotation direction of the large fan to ensure that the wind power can be fully utilized.
To put it simply, the blades of a wind turbine are like the blades of a oscillating electric fan. Even if you shake your head left and right (or even shake your head in all directions like a ceiling oscillating fan on a train), the blades will not turn. Change, but the electric fan rotates when electricity is supplied, while the generator generates electricity when the wind blows the blades. The blades rotate with the wind and in the same direction to generate electricity. If it suddenly rotates clockwise and sometimes counterclockwise, how can it generate electricity?