The Controller Design of Quasi-Z-Source Inverter for PV-Rooftop System using Fuzzy controller
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Abstract
This paper presents the controller design for PV rooftop system. This system can operate both standalone and grid connection modes. The quasi-Z-source inverter is chosen to convert the electrical power from direct current to alternating current. Both conventional PI and proposed fuzzy controllers are designed for the considered system operating in both standalone and grid connection modes. The simulation results by using the SimPowerSystem® in MATLAB and the hardware-in-loop simulation were used to confirm the effectiveness of the proposed controller. The results can confirm that the proposed fuzzy controller can provide the better performance compared with the conventional PI controller.
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