An Overview of the PV System (original) (raw)
solar power is the conversion of sunlight into electricity, either directly using photovoltaics (PV) or indirectly using concentrated solar power (CSP). The concentrated solar power system uses lens or mirrors and tracking systems to focus a large area of sunlight into a small beam. The process of conversion of light into electric current by the photovoltaics is known as the photovoltaic effect. Solar photovoltaic arrays are subjected to partial shading and rapid fluctuations of shading, in most of the portable applications. By partially shaded cells, the residual energy generated, either cannot be collected if the diode is bypassed, or impedes collection of power from the remaining fully illuminated cells, if the diode is not bypassed. The PV system is capable of maximizing the power generated by every PV cells in the PV panel. This system comprises of an array of parallel connected PV cells, a low-input voltage step up power converter and a simple bandwidth MPPT (Maximum Power Point Tracking) tracker. The MPPT operation is to adjust photovoltaic interfaces, so that the operating characteristics of the load and the photovoltaic array match at the maximum power point, no matter what the stand-alone or grid connected photovoltaic applications are.
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International Journal of Advance Research and Innovative Ideas in Education, 2020
A solar PV System is a system which converts solar energy into electricity. PV gets its name from the process of converting light (photons) to electricity (voltage), which is called the photovoltaic effect. In solar PV system, solar inverter is used to convert the output from direct to alternating current. Solar PV system is very reliable and clean source of electricity which suit a varied range of applications. As the demand for solar electric systems grows, progressive builders are adding solar Photovoltaic (PV) as an option for their customers.
International Journal of Engineering Research and Technology (IJERT), 2018
https://www.ijert.org/design-and-development-of-an-efficient-photovoltaic-system-with-maximum-power-point-tracking-technique https://www.ijert.org/research/design-and-development-of-an-efficient-photovoltaic-system-with-maximum-power-point-tracking-technique-IJERTCONV6IS13085.pdf With the increasing in the energy demand conservation and utilization of energy are very essential. Hence Solar charge controller helps in increasing the efficiency of the solar power transferred to the battery. Photovoltaic modules show nonlinear output characteristics because of different system losses. Maximum power point tracking (MPPT) is an intelligent technique for reducing these losses by driving the system at its maximum operating point. DC/DC converter is an essential part of a MPPT controlled photovoltaic (PV) system which functions as an interface between PV system and the load. These Converters are mostly Dc Choppers which converts fixed Dc voltage to a variable Dc source. These Regulators are used in case of Solar Charge Controllers to increase or decrease the PV panel voltage to as that required by Battery. The DC voltage from the PV panel varies with the light intensity which depends on time of day and temperature. Similarly, on the Battery side the voltage varies depending on the load connections. Thus, for optimal charging of battery it is important that the voltage of the PV panel and the current matches the battery charging state at any instant. There are various types of Dc-Dc Converter of which Buck Boost Converter is taken into consideration. In this project work we propose an efficient photovoltaic system which will be designed, developed and the results will be validated in real time.
Improvement of Pv Systems Power Output Using Sun-Tracking Techniques
2013
The amount of power produced by a photovoltaic (PV) or solar panel depends on the amount of sunlight to which it is exposed. As the sun’s position changes throughout the day, the PV panel must be adjusted so that it is always aimed directly at the sun and, as a result, produces the maximum possible power. A sun-tracking system tracks the motion of the sun across the sky and moves the PV panel to face directly at the sun and thereby ensuring that maximum amount of sunlight strikes the panel throughout the day. Sun-tracked PV systems are more efficient than fixed PV systems and are capable of enhancing productivity. In this paper different types of sun-tracking systems are reviewed and their energy gains are discussed.
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