Solar Tracking

No Thumbnail Available
Laith Musallam
Gazi Arar
Journal Title
Journal ISSN
Volume Title
 Abstract Using simulations and available solar algorithms, a software program is to develop in order to determine the different solar variables for all dates of the year.Minimum number of tilt angles has to be determined appropriately for each period in the year to obtain the maximum possible solar energy on the tilted collector.A solar tracking system for a PV module is to be realized to determine the solar power increment gained in comparison to collectors with constant tilt angles.Solar Tracker is a Device which follows the movement of the sun as it rotates from the east to the west every day. The main function of all tracking systems is to provide one or two degrees of freedom in movement. Trackers are used to keep solar collectors/solar panels oriented directly towards the sun as it moves through the sky every day.Using solar trackers increases the amount of solar energy which is received by the solar energy collector and improves the energy output of the heat/electricity which is generated. Solar trackers can increase the output of solar panels by 20-30% which improves the economics of the solar panel project.The aim of the project is to keep the solar photovoltaic panel perpendicular to the sun throughout the year in order to make it more efficient.The unique feature of this solar tracking system is that instead of taking the earth as its reference, it takes the sun as a guiding source.Its active sensors constantly monitor the sunlight and rotate the panel towards the direction where the intensity of sunlight is maximum.The PV cells  do the job of sensing the change in the position of the Sun. The control circuit does the job of fetching the    input from the sensor and gives command to the motor to run in order to tackle the change in the position of the sun.By using this system the additional energy generated with very less consumption by the system itself.The tracking system was driven by two DC motors to provide motion of the PV panels in two axis. The project describes the use of a microcontroller based design methodology of an automatic solar tracker. A PV cells are used as the sensors of the solar tracker. The tracking system maximizes solar cell output by positioning a solar panel at the point of maximum light intensity.The system was designed as the normal line of solar cell always move parallel to the rays of the sun. The Aim of this project is to develop and implement a prototype of two-axis solar tracking system based on a microcontroller.The system is designed to control the Altitude angle in the vertical plane as well as the Azimuth angle in the horizontal plane of the photovoltaic panel workspace.