Wind power generation principle and wind power generation process

3) The power curve of the wind power generator

When the wind speed is very low, the wind turbine wheel will remain stationary. When the cutting wind speed is reached (usually 3 to 4 meters per second), the wind wheel starts to rotate and the generator starts to generate electricity. As the wind force becomes stronger, the output rate will increase. When the wind speed reaches the fixed wind speed, the wind generator will output its fixed work rate. After the output work rate will remain large unchanged. When the wind speed increases step by step and reaches the cutting out wind speed, the wind generator will brake and no longer input the power rate to avoid damage.

The performance of the wind generator can be expressed by the power rate curve. The power rate curve is used to show the power output of the wind turbine at different wind speeds (cutting in wind speed to cutting out wind speed).

To select suitable wind generator for a particular site, a general method is to use the power curve of the wind generator and the wind power material at the site to calculate the electricity generation. . (There is more related information in the section of large wind power generator - Source potential)

4) The fixed output power rate of the wind power generator

The rate of power output of the wind generator is determined by the combination of the specified rate of wind speed. Since the energy is positively proportional to the vertical of the wind speed, the power rate of the wind power generator will vary greatly with the wind speed.

Wind turbines of the same construction and straight diameter of the wind wheel can be matched with generators of different sizes. Because the two are of the same construction and wind