This research investigates the incorporation of a photovoltaic system into the grid through the implementation of a quasi-Z source inverter. The study encompasses a comprehensive analysis of PV panel sizing and a detailed examination of the QZSI architecture. To optimize the efficiency of the solar photovoltaic system and facilitate seamless power injection into the grid, a multitask control algorithm is meticulously formulated. This control strategy uses the fuzzy logic with the Park transform method (d-q) and P&O peak power point tracking algorithm. The MPPT system in this case employs a shoot-through technique due to the presence of the QZSI impedance network, which allows for the creation of short circuits. Additionally, an LCL and active filters are strategically deployed to enhance power quality at the PCC. To effectively address scenarios involving partial shading, an innovative economic algorithm is introduced, amalgamating two distinct methods. This novel approach initially identifies the peak power point and subsequently directs the P&O method to track this point.
The entire system, including its control algorithm, is meticulously evaluated in demanding operational environments using the Matlab Simulink platform, with the aim of ensuring optimal performance.
| Date | 24 Jan 2024 |
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| Original language | French |
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| Awarding Institution | - École de technologie supérieure
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| Supervisor | Ambrish Chandra (Supervisor) & Miloud Rezkallah (Co-supervisor) |
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Dridi, S. (Author),
Chandra (Supervisor) & Rezkallah (Co-supervisor),
24 Jan 2024Student thesis: Master's thesis › Master in Engineering: Engineering