This paper proposes to set up 100 KWp grid connected
photovoltaic (PV) power plant. The maximum power
point tracking (MPPT) of this PV power plant is
controlled by using a proposed combination between the
incremental conductance and integral regulator (CR)
control and the fuzzy logic control (FLC). This
combination is applied to the PV power plant through
dc-dc boost converter. The proposed combination
collects both advantages of CR and FLC control
methods. Whereas the CR control method is simple and
widely used for controlling MPPT of PV panels, the
FLC provides accurate fast response, high performance
and maximum efficiency. Therefore, the combination of
these controllers together could improve the MPPT and
the PV performance, especially with existing fluctuated
solar irradiation and electrical noise. For comparative
evaluation, the response of the PV plant with the
application of the combined CR and FLC is compared to
the responses of the application of each of them
separately. The PV plant is simulated using MATLAB
and Simulink. |
