As a clean and pollution-free energy, solar energy has a very broad development prospect and has become a green energy developed by various countries. However, solar energy has some problems, such as low density, intermittence, and the light direction and intensity change with time. Traditional solar panels are mostly fixed installation, that is, the panel is fixed at a certain angle and does not change with the position of the sun. It seriously affects the photoelectric conversion efficiency. It is estimated that if there is a 25 degree deviation between the photoelectric system and the solar light angle, the output power of the photovoltaic array will be reduced by about 10% due to the reduction of the vertical incident radiant energy. All the year round, spring, summer, autumn and winter, the rise and fall of the sun from day to night, and the angle of the sun's light are changing all the time. Therefore, how to change the angle of the battery panel with the light angle to improve the photovoltaic conversion rate, which cuts into our theme, uniaxial tracking system and biaxial tracking.

Uniaxial tracking, as the name suggests, means that there is only one rotation axis to change the position and angle of the battery panel, so as to achieve the * * of the light emission intensity of the solar light perpendicular to the battery panel, so as to improve the photovoltaic conversion rate. Single axis tracking can be divided into horizontal single axis tracking, inclined single axis tracking and vertical single axis tracking according to the orientation of the rotating axis. According to the type of power actuator of the moving mechanism and the type of transmission system, it can be divided into: single structure type of electric push rod, linkage structure type of electric push rod, single structure type of rotary reducer and linkage structure of rotary reducer.

1. Horizontal uniaxial

Solar tracker