Özet:

In this study, a photovoltaic simulator simulates the behaviour of a photovoltaic system is designed. A DC-DC buck type converter is used to realize the photovoltaic simulator. The photovoltaic simulator gives researchers, manufacturers, and university laboratories the opportunity to easily test their systems under variable irradiances and temperatures without the need to wait until weather conditions become proper to study. The designed photovoltaic simulator is verified in terms of the I-V and P-V characteristics of the photovoltaic panel by comparing it with the photovoltaic model of the MATLAB/Simulink. A DC-DC boost converter is connected to the designed photovoltaic simulator to be able to maximum power point tracking studies. Moreover, perturb and observe method used to get maximum power from the photovoltaic panel is modified to prevent some deficiencies of the classical one. The perturb and observe method and modified perturb and observe method are applied to both the photovoltaic model of Simulink and the designed photovoltaic simulator. Thereby, the developed method is also verified by the maximum power point tracking algorithms. Also, it is proved with the simulation result that the modified perturb and observe method extracts more energy than the classic one from the photovoltaic power.

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