[01] M. Toghyani Rizi, Faculty of Electrical and Computer Engineering, Hakim Sabzevari University, Sabzevar, Iran. [02] M. H. Shahrokh Abadi, Faculty of Electrical and Computer Engineering, Hakim Sabzevari University, Sabzevar, Iran.

A step-by-step mathematical modeling of one-diode equivalent circuit of photovoltaic cell/module, implemented in matlab/simulink was developed. The model was designed to take different inputs in terms of voltage, insolation, temperature, series and parallel resistances to simulate the electrical behaviour of the module and to produce V-I and P-V curves. The novelty of this work is consideration the effects of series and parallel resistances of the model as the independent inputs. Furthermore, hot spot heating and bypass diode operation of the module were investigated. Finally, using the proposed model, a photovoltaic array in parallel mode was developed and simulated.

Photovoltaic Cell, Module, MATLAB, Simulink, Series Resistance, Parallel Resistance, I-V Curve, P-V Curve

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