Abstract:
Solar photovoltaic (PV) energy is becoming an increasingly important part of the
world's renewable energy. In order for effective energy extraction from a solar PV
system, this thesis report investigates I-V and P-V characteristics of solar PV cells,
modules, and array. The thesis report focuses particularly on I-V and P-V
characteristics of a solar PV system when PV cells operate under uneven shading and
dissimilar conditions. The study considers the relationship between semiconductor
properties of a solar PV system and the external electric circuit requirements. The paper
also examined how different bypass diode arrangements could affect the maximum
power extraction characteristics of a solar PV system. It is found in this report that
under uneven shading conditions, solar PV cells may perform very differently and a
solar PV system may exhibit multiple peaks in its P-V characteristics, implying that
enhanced PV system design approaches and MPPT (Maximum Power Point Tracking)
strategies should be developed to improve the efficiency of a solar PV system
Description:
Solar photovoltaic cells are thin silicon disks that convert sunlight into electricity.
These disks work as energy sources for a wide variety of uses, which include:
calculators and other small devices; rooftop panels on individual houses;
telecommunications and pumping, lighting, and medical refrigeration for villages in
developing countries. Solar cells in the form of large arrays are used to power satellites
and, in rare cases, to provide electricity for the power
Exactly when examination into power began and direct batteries were being made and
considered, an examination concerning sun fueled power sought after fantastically
quickly. As in front of the timetable as 1839, Antoine-Cesar Becquerel revealed a
compound battery to the sun to see it produce voltage. This first change of sunlight to
power was one percent profitable. That is, one percent of the moving toward sunlight
was changed over into power. Willoughby Smith in 1873 found that selenium was
delicate to light; in 1877 Adams and Day saw that selenium, when introduced to light,
made an electrical stream. Charles Fritts, during the 1880s, in like manner used goldshrouded selenium to make the chief sun based cell, again only a solitary percent
capable. Before long, Fritts accepted his cells to be dynamic. He envisioned free sun
controlled essentialness to be a strategy for decentralization, foreseeing that sun based
cells would displace power plants with only energized homes.
