Photovoltaic (PV) array which is composed of modules is considered as the fundamental power conversionunit of a PV generator system. The PV array has nonlinear characteristics and it is quite expensive and takesmuch time to get the operating curves of PV array under varying operating conditions. In order to overcome these obstacles, common and simple models of solar panel have been developed and integrated to many engineeringsoftware including Matlab/Simulink. However, these models are not

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... ate for application involving hybrid energysystem since they need a flexible tuning of some parameters in the system and not easily understandable for readersto use by themselves. Therefore, this paper presents a stepby-step procedure for the simulation of PV cells/modules/arrays with Tag tools in Matlab/Simulink. A 200-Watt solar panel is used as reference model. The output characteristics curves of the model match the characteristics of the solar panel after simulation. The mathematical modeling of the PVwas demonstrated step by step, Wind Turbine performance was simulated and observed, the output voltage of the turbine was 240V matched the calculated value. A step-by-step procedure for simulating a PV array with Tag tools, using friendly icons and dialogs in Matlab/Simulink block libraries is shown in this work. This modeling procedure serves as an aid to help people understand the I-V and P-V operating curves of PV module. The research is the first step to study a hybrid system where a PV power generation connecting to other renewable energy production sources like wind or biomass energy systems is applied and simplified.