نتایج جستجو برای: photovoltaic system

تعداد نتایج: 2245767  

Bagheran, Amir , Ettehadieh, Ali , Shojaei, Ali asghar ,

Abstract: As fuel prices increase and environmental issues become more serious due to the use of fossil fuels, as well as the expiration of fossil fuels, the researchers are looking to find alternative fossil fuels. Using renewable and green energy like solar energy using photovoltaic systems would be a convenient and cost-effective way. It is important to note that the efficiency of these cell...

2012
D. E. Gourgoulis C. G. Yakinthos M. G. Vassiliadou

The scope of this paper is to describe a real electrical installation of renewable energy using photovoltaic cells. The displayed power grid connected network was established in 2007 at area of Northern Greece. The photovoltaic park is composed of 6120 photovoltaic cells able to deliver a total power of 1.101.600 Wp. For the transformation of DC voltage to AC voltage have been used 25 stand alo...

2014
NAOUFEL KHALDI HASSAN MAHMOUDI MALIKA ZAZI YOUSSEF BARRADI

The maximum power point tracking (MPPT) system controls the voltage and the current output of the PV system to deliver maximum power to the load. Present work deals a comparative analysis of incremental conductance, and neural network based MPPT techniques. Parameters values were extracted using Newton Raphson method from characteristics of Shell SP75 module. The simulations have been carried o...

2008
Mohamed Azab

A circuit based model of photovoltaic array (PV) suitable for simulation studies of solar power systems is proposed in this paper. The proposed model is realised using Power System Block Set under MATLAB/SIMULINK, however, it can be constructed using standard simulation software such as PSPICE. The proposed circuit model has several advantages: simple, reliable, allows simulation of basic cells...

2012
S. Gomathy S. Saravanan

Maximum power point trackers (MPPTs) play a vital role in photovoltaic (PV) systems because they increase the eff iciency of the solar photovoltaic system by increasing the power output. MPPT algorithms are necessary because PV arrays have a non linear voltage-current characteristic with a unique point w here the power produced is maximum. The output pow er from the solar panel varies w ith sol...

In this research, a pilot study and analysis of an innovative multi-channel photovoltaic/thermal (MCPV/T) system in a geographic location (35° 44' 35'' N, 50° 57' 25'' E) has been carried out. This system consists of integrating a photovoltaic panel and two PV/T heat-sink converters. The total electrical, exergy and energy efficiencies of the system at air flow rate of 0.005 kg/s and radiation ...

2010
M. Ferri D. Pinna E. Dallago P. Malcovati G. Ricotti

In this paper we present an autonomous temperature sensor supplied by a on chip photovoltaic energy harvester. Then system is realized in a BCD SOI technology. The energy harvesting elements consist of a 34 trench-insulated p-n junctions, while the sensing system consists of a bandgap reference circuit, including an integrated high precision temperature sensor, and a high voltage low drop-out v...

2012
N. Chandrasekaran K. Thyagarajah

Water pumping using AC motors has become one of the most feasible photovoltaic (PV) applications. Moreover, PV pumping is getting more attention in recent days mainly in remote areas where connection to the grid is technically not possible. Power generation by Photovoltaic is reliable. The operation and maintenance costs are low. The induction motor is more rugged, and maintenance-free motor. I...

Journal: :Environmental Modelling and Software 2015
Jianming Liang Jianhua Gong Jieping Zhou Ibrahim Abdoul Nasser Ming Li

Photovoltaic energy has become a popular renewable energy source for sustainable urban development. As a result, 3D solar radiation models are needed to facilitate the interactive assessment of photovoltaic potential in complex urban environments. SURFSUN3D is a visualization-oriented full 3D solar radiation model that has been shown to achieve efficient computation and visualization for 3D urb...

2013
S. Wijewardana

Electricity generation using solar photovoltaic systems pose a unique challenge to improve the efficiency and to minimise the manufacturing cost. Research and development in this area has been expanding as it is environmentally friendly and helps the planet to reduce the greenhouse gas emission while reducing the carbon footprint. As a result, solar photovoltaic (PV) electrical power generation...

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