Day by day the demand for electrical energy is increasing. We can't rely on conventional energy sources for meeting this increasing demand as they are depleting. So it is necessary to find an alternative method to harness the energy that we are lacking. Solar energy generation seems to be a promising technology for this dilemma. It is environmental friendly and infinite source of energy. Photovoltaic systems can be broadly classified into two-an on-grid system or an off-grid system. The energy generated from a solar PV system is based on several factors like irradiance, types of solar PV used and temperature. Analyzing the existing system efficiency is of prime importance for the characterization of the problems and for the improvements. This study deals with the performance analysis of an on-grid and off-grid system. The analysis is carried out by modeling an existing system in MATLAB/SIMULINK which is already in operation. It can be extended to analyze the grid stability. This study aims the quantification of various performance parameters like power output, losses in the system, system efficiency and the total energy transfer.
The demand for electrical energy is peaking. At the same time the conventional energy sources are depleting. In order to bridge the gap between the increasing demand and production some alternative energy resources have to be exploited. Renewable energy resources seem to be a promising solution. Solar energy having its own importance in such a scenario as it is clean, environmental friendly and infinite source of energy. The solar photo voltaic systems can be classified in to off-grid and on-grid systems. The yield of a solar photovoltaic system depends on various factors such as irradiation, temperature. Evaluation of the existing system is very important for the characterization of the existing problems and for the future improvements. For the evaluation a MATLAB/SIMULINK model is prepared for an on-grid and off-grid photovoltaic system. This study aims the evaluation of various power and voltage levels, charging and discharging trends of the battery bank, and the amount of power injected to the grid.
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