Publication: Design and implementation of maximum power point tracking technique for photovoltaic (PV) system incorporated with high gain DC-DC boost converter
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Date
2023-08
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Abstract
Renewable energy sources are gaining popularity due to concerns about fossil fuel depletion and environmental damage. Solar energy's abundance and sustainability make it a promising option. Temperature, shade, and sunlight intensity limit solar panel efficiency. To circumvent these restrictions, DC-DC boost converters with MPPT have been created to improve the conversion efficiency of solar energy. Under varying circumstances, these converters can harvest the maximum amount of power available from solar panels. In addition to allowing the use of low voltage solar panels, the high gain of these converters reduces the total cost of the system. This thesis investigates the design and implementation of a high gain DC-DC boost converter using MPPT and compares it to a conventional DC-DC boost converter. This study presents the design of a solar PV system utilizing a high gain DC-DC boost converter for a 100W PV module, implemented in MATLAB/Simulink. The maximum power point tracking (MPPT) using P&O technique was successfully applied, ensuring optimal power extraction from the solar module even under varying irradiance conditions. Performance comparison between the high gain and conventional DC-DC boost converters revealed that the high gain converter outperforms in terms of duty cycle, voltage gain, and voltage stress across the switches. However, it is important to note that the conventional DC-DC boost converter still exhibits a higher power ratio or efficiency compared to the high gain DC-DC boost converter.