According to the tracking dimension, the photovoltaic sun-chasing system can be divided into two categories: single-axis tracking and dual-axis tracking. Single-axis tracking only tracks the azimuth angle of the sun, and abandons the tracking of altitude angles, so PV modules take the form of fixed inclination (pitch angle). According to the different inclination angles, it can be divided into two modes: horizontal single-axis tracking and inclination latitude angle oblique single-axis tracking. Horizontal single-axis tracking uses 0. Fixed inclination, by adjusting the north-south axial angle of the photovoltaic module to achieve east-west upward tracking of the sun's azimuth, the advantage of this tracking method is that it will not produce occlusion in the distance between the front and back of the photovoltaic module array, and the same footprint is larger than other tracking photovoltaic systems, and the utilization rate per unit land area is high, but because its inclination angle is fixed as o. It is generally suitable for low-latitude areas with relatively large solar altitude angles; The inclination latitude angle oblique uniaxial tracking also only tracks the sun azimuth in the east-west direction, but the fixed inclination angle adopted is the same as the local latitude, and the direction of such a system is completely consistent with the sun on the spring and autumn equinox days, which is equivalent to the median value of the annual variation of the local solar altitude angle, taking into account the winter and summer seasons, so it is more suitable for the middle and high latitudes where the solar altitude angle changes greatly in the year.
QY-T28 solar daily automatic tracking system training device.
The training device of QY-T28 solar daily automatic tracking system is composed of three parts: sunlight tracking sensor, controller and transmission actuator. The sunlight tracking sensor measures the sunlight with high precision throughout the whole process under effective lighting conditions, and converts the sunlight azimuth signal into an electrical signal and transmits it to the tracking controller. After receiving the signal of the sunlight tracking and positioning sensor, the tracking controller drives the transmission actuator to operate, so that the solar panel is perpendicular to the sunlight. The mechanical structure design of the transmission actuator can realize the horizontal direction ° pitch angle can be adjusted and fixed, and the maximum wind resistance can reach 10 levels.