This paper presents a method for extraction of the model parameters pertaining to a commercially available PV module, which can be used to develop an accurate PV model that can serve as a source for simulation studies of both grid-connected and stand-alone PV systems. All the physical parameters required for the PV model are determined only from the published V-I characteristics of the module and the standard cell equation. A curve fitting based extraction technique is proposed to obtain the parameters pertaining to a particular PV module available in the market. The extracted parameters are used and a simulation model of the PV module is developed in MATLAB/Simulink. The inputs to the model are irradiance, ambient temperature, number of series and parallel modules in an array as required in an application. A 115 W commercial module S115 is taken for verification, and its physical parameters are extracted and its simulation model is developed. The characteristics of the developed model with the extracted parameters, for several G and TC are presented and compared with the published data of S115 and com- pliance confirmed. The model has been tested for sudden changes in irradiance and temperature using a maximum power point tracker. © Springer India 2016.
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Dr. Vijayakumari A., Devarajan, A. T., and Devarajan, N., “Extraction of photovoltaic (PV) module’s parameters using only the cell characteristics for accurate PV modeling”, Advances in Intelligent Systems and Computing, vol. 397, pp. 265-276, 2016.