Solar PV Systems for India
Solar cells
convert sunlight directly into electricity. Solar cells are often used to power
calculators and watches. They are made of semiconducting materials similar to
those used in computer chips. When sunlight is absorbed by these materials, the
solar energy knocks electrons loose from their atoms, allowing the electrons to
flow through the material to produce electricity. This process of converting
light (photons) to electricity (voltage) is called the photovoltaic (PV) effect.
Solar cells
are typically combined into modules that hold about 40 cells; a number of these
modules are mounted in PV arrays that can measure up to several meters on a
side. These flat-plate PV arrays can be mounted at a fixed angle facing south,
or they can be mounted on a tracking device that follows the sun, allowing them
to capture the most sunlight over the course of a day. Several connected PV
arrays can provide enough power for a household; for large electric utility or
industrial applications, hundreds of arrays can be interconnected to form a
single, large PV system.
How a PV
System works?
Simply put,
PV systems are like any other electrical power generating systems, just the
equipment used is different than that used for conventional electromechanical
generating systems. However, the principles of operation and interfacing with
other electrical systems remain the same, and are guided by a well-established
body of electrical codes and standards.
Although a
PV array produces power when exposed to sunlight, a number of other components
are required to properly conduct, control, convert, distribute, and store the
energy produced by the array.
Depending
on the functional and operational requirements of the system, the specific
components required may include major components such as a DC-AC power
inverter, battery bank, system and battery controller, auxiliary energy sources
and sometimes the specified electrical load (appliances). In addition, an
assortment of balance of system (BOS) hardware, including wiring, over current,
surge protection and disconnect devices, and other power processing equipment.
Figure 3 show a basic diagram of a photovoltaic system and the relationship of
individual components.
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| Working of PV System
Why
Batteries Are Used in Some PV Systems?
Batteries
are often used in PV systems for the purpose of storing energy produced by the
PV array during the day, and to supply it to electrical loads as needed (during
the night and periods of cloudy weather). Other reasons batteries are used in
PV systems are to operate the PV array near its maximum power point, to power
electrical loads at stable voltages, and to supply surge currents to electrical
loads and inverters. In most cases, a battery charge controller is used in
these systems to protect the battery from overcharge and over discharge.
Photon
Solar PV Systems are designed to operate efficiently, even in the most hostile
and remote locations, anywhere in the world.
This
eco-friendly and maintenance-free systems cater to a variety of applications
like:
Lighting:
Water Pumping:
Power Generation:
Fencing:
For more information Please visit our
website or call us.
Website: www.tgpsolar.com
Contact Us: 040 64444148/+91-7386601340
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