THE DESIGN AND IMPLEMENTATION OF A SOLAR TRACKING GENERATING POWER SYSTEM (Electronics project)

THE DESIGN AND IMPLEMENTATION OF A SOLAR TRACKING GENERATING POWER SYSTEM

Technical Specifications

Title of the project                  :           The Design and Implementation of a Solar

Tracking Generating Power System

Domain                                   :           Renewable Energy Management, Embedded

Design, Energy System

Software                                  :           Embedded C, Keil, Proload

Microcontroller                       :           AT89S52

Power Supply                          :           +5V, 750mA Regulated Power Supply

Display                                    :           16 X 2 Alphanumeric LCD

Crystal                                     :           11.0592MHz

Applications                            :           Emergency lighting, water heaters, Hotels,

Hostels and House hold applications and

Industrial applications

The Design and Implementation of a Solar Tracking Generating Power System

(Inspired by nature: Model Sunflower)

                                                         ABSTRACT

Solar energy systems have emerged as a viable source of renewable energy over the past two or three decades, and are now widely used for a variety of industrial and domestic applications. Such systems are based on a solar collector, designed to collect the sun’s energy and to convert it into either electrical power or thermal energy. In general, the power developed in such applications depends fundamentally upon the amount of solar energy captured by the collector, and thus the problem of developing tracking schemes capable of following the trajectory of the sun throughout the course of the day on a year-round basis has received significant coverage in this project. In Aden city (Yemen), the improvement in the performance of a solar cooker during summer was found to be as much as 40% for higher elevation angle and 70% for lower elevation angle, based on the developed tracking algorithms. Moreover, it was shown that the amount of solar energy captured by a tilted collector could be increased by more than 40% by adjusting the tilt angle on a seasonal basis.

This project is designed with AT89S52 MCU.  Two LDRs are used to monitor the solar light condition. These LDR output is interfaced to Microcontroller through transistor. The controller continuously checks the voltage level of the LDRs and operates the motor to to face the panel to maximum level of intensity. The day / night condition is also monitored by these two LDRs to disable the tracking in night condition. The motor is driven by H bridge.

This project uses regulated 12V, 500mA power supply. 7805 three terminal voltage regulator is used for voltage regulation. Bridge type full wave rectifier is used to rectify the ac out put of secondary of 230/12V step down transformer.