الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
 |  | from | 89 |  |  |
| | | from | 89 | | |
Abstract
The energy demand in the world is steadily increasing and new types of energy sources must be found in order to cover the future demands, since the conventional sources are about to be emptied. One type of renewable energy source is the photovoltaic (PV) cell, which converts sunlight to electrical current, without any form for mechanical or thermal interlink. PV cells are usually connected together to make PV modules, which generates a DC voltage with a typical maximum power, depending on temperature and solar irradiation. The electrical infrastructure around the world is based on AC voltage, with a few exceptions. PV modules can therefore not be connected directly to the grid, but must be connected through an inverter. This thesis presents a design and implementation of single phase inverter which produces a nearly pure sine wave with an output voltage that has the same magnitude and frequency as a grid voltage using PIC microcontroller. The use of this type of microcontroller yields enhanced operations, fewer system components, lower system cost and increased efficiency. The sinusoidal pulse width modulation (SPWM) technique used is generated by microcontroller. The designed inverter is tested on several AC loads and is essentially focused upon low power electronic applications such as a lamp and a fan etc. The proposed model of the inverter can improve the output waveforms of the inverter. The finished design is simulated in by using computer packages Proteus and PSIM to ensure the output results which are verified in the laboratory.