Wind turbines with a generating capacity of 10 kilowatts and less are generally called small wind turbines. Small wind turbines mainly consist of the following parts: wind wheel, generator, rotating body, speed regulating mechanism, steering regulating mechanism, braking mechanism and tower.
Classification of small wind turbines:
1. Classification by axis position
According to the position of the wind turbine shaft, wind turbines can be divided into horizontal. vertical axis wind power generation and vertical axis wind turbines.
(1) Horizontal axis wind turbine: The wind rotor of the horizontal axis wind turbine rotates around a horizontal axis. The rotor axis is parallel to the wind direction. The wind rotor blades are installed radially and. are aligned with the vertical axis of rotation and forming an angle to the plane of rotation of the wind wheel (called installation angle). The number of paThe value of the wind rotor is 1 to 10 (usually 3, 5 or 6). It has a high wind energy utilization rate when operating at high speed, but requires high wind speed when starting.
(2) Vertical axis wind turbine: The wind wheel of the vertical axis wind turbine rotates around a vertical axis and the axis of the wind wheel is perpendicular to the wind direction. The advantage is that it can accept wind from any direction, so when the wind direction changes, there is no need to counter the wind.
2. Classification by power
According to the power of wind turbines, they can be divided into large, medium, small and micro wind turbines. Energy However, with the breakthrough of unit capacity, wind turbines of 1 MW and above are gradually called medium and large wind turbines. Small wind turbines have a single capacity of several hundred kilowatts.