The limitations of global resources of fossil and nuclear fuel, has necessitated
an urgent search for alternative sources of energy. Therefore, a new way has to be
found to balance the supply and demand without resorting to coal and gas fuelled
ge
nerators.Environment safety has become very important for any energy system,
Increasing demand of conventional sources has further increases the need and
optimizes cost of non-conventional energy sources.
This paper has analyzed the development of a method for the mathematical
modeling of PV System.behavior of the PV Array with series resistance model are
studied in this paper. Included effects are: temperature dependence, solar radiation
change, diode ideality factor and series resistance influence,and shows the
mathematical modeling of stand-alone PV system and then compare withAnalysis
of Perturb and Observe MPPT and without MPPT simulation of photovoltaic
modules with Matlab/Simulink, And Calculate the increase in efficiency resulting
from the use of technology MPPT.
This paper deals with the analysis and study of performance of solar panels, so we
choose working on the solar panel (module) MSX-50, in addition to improve his power by
tracking the maximum power point, this is done by using boost (step up) choppe
r to obtain
the largest possible capacity of solar panel.
We will determine a mathematical model equivalent to the real solar panel (not ideal)
through studying photovoltaic cells, where we will use the iterative method in addition to
the Newton-Raphson algorithm in order to determine the value serial resistance of module
Rs parallel resistance of module Rp.
As has been the implementation of perturbation and observation p&o algorithm in
addition studying and designing the circuit of step up (boost) chopper, and selection the
components (coil L, capacitor C), based on both the operation frequency f, ripple factor of
output voltage and output current .
Based on the our study, we have performed a modeling process of the solar module
MSX-50 using MATLAB/SIMULINK program, where we designed a graphical user
interface GUI to display the module characteristics and calculate resistance Rp and Rs, in
addition to build an algorithm p&o and design circuit of boost (step up) chopper.
The proposed model has been applied to the ohmic load according to the principle of
the maximum power point tracking MPPT, and discuss the results of two cases wich are
the following the solar module is connected directly to load, connected through chopper
driven by p&o algorithm.
