Modeling of Solar PV system under Partial Shading using Particle Swarm Optimization based MPPT
نویسنده
چکیده
Ujjwala Rai1 1 Assistant Professor, Dept. EED, SGSITS College, MP, INDIA ---------------------------------------------------------------------***--------------------------------------------------------------------Abstract This work presents the effects of changing environmental conditions on the solar photovoltaic energy conversion system. Partial shading causes oscillations in output characteristics of the PV (photovoltaic) array and distracts the system to track MPP (maximum power point). In this paper, generalized approximate model of the solar cell is implemented using MATLAB/Simulink software package. In order to track maximum power efficiently from the PV array, evolutionary search technique PSO (particle swarm optimization) algorithm is used. Finally the developed model for PV array is interfaced with DC/DC boost converter using SimPowerSystems tool box to extract stepped up voltage from solar array. The duty cycle of the converter is controlled by the MPPT algorithm and PI (Proportional integral) controller. The PV array model is developed and simulated to produce higher output voltage under partial shading conditions.
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