Shading Phenomenon Analysis for a Medium Size 3.8 kW Standalone PV System Connected in Series Parallel Configuration Using MATLAB Simulation
نویسندگان
چکیده
Photovoltaic array exhibits highly nonlinear electrical characteristics and the maximum power point tracking (MPPT) is always challenging. It becomes more complex during partial shading condition. The P-V array characteristics for shading condition have multiple maxima points and conventional MPPT technique fails to track global maximum power point. The operating point may settle at local points. In this paper, a medium size 3.8 kW PV system is simulated and shading effect on PV array is analyzed for different shading pattern. This PV array consisting of 64 ( 8 8 ) PV modules connected in series and parallel configuration of 60 W each. The dc-dc boost converter is used to control and operate above system at Global maximum power point (GMPP). The P-V and I-V characteristics are plotted using Matlab/ Simulink software platform and the simulation results are obtained to study shading effect.
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