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Photovoltaic (PV) has become the alternative form of clean energy generation world-wide. Many power utilities have embraced this alternative source of power generation and integrating the power to the grid. This research study provides insights on the effects of high levels of Photovoltaic (PV) generation integration on the utility grid with particular emphasis on the South African utility grid. The...
In this paper photovoltaic array characteristics has been studied using a developed MATLAB/Simulink model. The developed simulation model can be used to analyze the effect of temperature, uniform and non-uniform insolation on the PV array. Mathematical equations of a single diode model are used to develop the simulation model. The model is tested for various operating conditions particularly for partial...
In this paper study on a photovoltaic system done with a developed simulation model consisting of a maximum power point tracker is presented. The characteristics of the developed model were compared with commercially available PV module after simulation under different radiation and temperature conditions. For extracting the maximum power from the Photovoltaic array, a Perturbation and Observation...
In this paper, a hybrid method is proposed for maximum power point tracking (MPPT) of solar photovoltaic system. This method combines three point-weight and Fuzzy Logic Control (FLC) methods. First, the direction of change in the voltage or no change compared to the state before is determined based on three point-weight method. Then a change in the voltage magnitude is done based on FLC. Three point-weight,...
This paper deals with creating a mathematical model of ideal photovoltaic module. The performance of the model is demonstrated with output characteristics which also show the effect of changes in temperature and solar radiation on the output parameters of cell, module, and field. The model is realized in Matlab/Simulink environment due to frequently using and complexity of this software.
This paper proposes a generalized model of the photovoltaic cell in Matlab-Simulink. This proposed model is based on basic mathematical equation of solar photovoltaic cell. The PV modules have non-linear output characteristics. The output I-V and P-V characteristics of photovoltaic cell are depend on sunlight irradiance and cell temperature. The model can be used to extract the physical parameters...
Photovoltaic (PV) arrays are used in many terrestrial applications. It exhibits a non-linear i-v characteristic which electrical energy production is depending on typical conditions such as solar irradiance and temperature. For best utilizations, the PV arrays must be operated at their maximum power point (MPP) via good implementation of Maximum Power Point Tracking (MPPT) algorithm technique. It...
The performance of a photovoltaic (PV) module is mostly affected by array configuration, irradiance, and module temperature. It is important to understand the relationship between these effects and the output power of the PV array. This paper presents a MATLAB-Simulink-based PV module model which includes a controlled current source and an S-Function builder. The modeling scheme in S-Function builder...
Renewable energy sources are being progressively more used for providing energy needs due to the growing concern of environmental pollution. Photovoltaic (PV) systems have a significant place within the renewable energy sources. Solar cells are the most important elements of photovoltaic systems. They determine the parameters to meet the power requested. For this reason, a simulation program is necessary...
A generalized photovoltaic array simulation model in Matlab/Simulink environment is developed and presented in this paper. The model includes PV module and array for easy use on simulation platform. The proposed model is designed with a user-friendly icon and a dialog box like Simulink block libraries. Considering the effect of solar irradiance and temperature changes, the output current and voltage...
An innovative methodology for the development of a commercial low-power single-phase transformerless inverter for grid connected photovoltaic (PV) systems is described. Computer-Aided Engineering (CAE) tools like MATLAB/Simulink™, PLECS™ and dSpace/TargetLink™ allow fundamental steps, such as: physical modeling and simulations, innovative control algorithms design and testing, preliminary hardware...
A new simulation model of photovoltaic module is presented in this paper, which is based on double-exponential equation. The proposed model accepts irradiance and temperature as variable parameters, can exactly simulate the current-voltage (I/V) characteristic of photovoltaic module. And a MatlabTM program for the model is also designed. The program is more accurate and need less initial input values...
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