Solar Tracking System Based On Single Chip Microcomputer

With the rapid development of economy, the use of the mineral energy makes themankind is faced with more and more serious energy crisis and environmental crisis, thedevelopment and utilization of new energy is imminent. Because solar energy is clean,inexhaustible characteristics, widely used in human life. So how to make full use of solarenergy become the important link between the use of solar energy. This thesis will do researchon this subject.This topic research content is to use single chip microcomputer control motor rotationalsun tracking. This system adopts single chip microcomputer AT89C51, it is the control core ofthe whole system.This topic proposed two tracking modes: photoelectric detection way and the Angletracking method. Adopts photoelectric detection tracking method, when sunny cloudy adoptsthe sun Angle tracking method. Photoelectric detection using photosensitive diode as thephotoelectric sensor, through the comparison circuit judge the sun direction, through themicro-controller sends a signal to drive stepper motor rotation, driven in solar panels, andrealize the sun tracking; Track the sun Angle is calculated by software then and there the sunaltitude Angle and azimuth Angle, combined with mechanical devices to realize the trackingof the sun, a software program using C51language to write programs.Thesis finally respectively test the photoelectric detection of trace and track the sunAngle. Photoelectric detection way of tracking the test results show that the solar receivingrate increased by35.3%; The sun Angle tracking test results show that the calculationaccuracy is higher. Both reach the purpose of the sun tracking.