Modeling, control and real-time implementation of a quasi-z-source converter for variable speed micro-wind turbines for residential applications

Abstract

This study introduces a novel configuration aimed at efficiently and securely incorporating renewable energy sources like wind turbines and solar panels into household settings, including remote chalets. This setup involves two interconnected power converters: the quasi-Z-source converter and the single-phase inverter. To ensure uninterrupted power supply to connected loads, an energy storage system is integrated. To enhance power generation from renewables, the DC output voltage of the quasi-Z-source converter is elevated, while the single-phase half-bridge inverter is controlled using two shoot-through state-based strategies, ensuring a consistent and stable power supply to the chalet's electrical loads. Space vector modulation is employed to regulate the MOSFETs of the single-phase inverter, resolving its output nonlinearity issues. Furthermore, this study details the design of passive parameters for the converter and presents a comprehensive configuration model. A Simulink model was developed using MATLAB Simulink to assess the setup's performance, encompassing its control strategies and space vector modulation, across various conditions. A prototype of the 500W setup was constructed and evaluated in the laboratory, utilizing the F28379D as a microcontroller. Both practical and simulation results demonstrate satisfactory performance.

Date	16 Sept 2024
Original language	American English
Awarding Institution	École de technologie supérieure
Supervisor	Ambrish Chandra (Supervisor) & Miloud Rezkallah (Co-supervisor)