
Advanced Power Converter Topologies: A Focus on Z-Source Inverters
A Focus on Z-Source Inverters
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This book addresses the increasing need for advanced control strategies in Distributed Generation (DG) systems by leveraging the capabilities of Z-source inverters (ZSIs) and quasi-Z-source inverters (qZSIs)-innovative topologies within the Impedance Source Inverter (ISI) family. The study is structured around four main objectives:Comparative Performance Analysis: Through detailed simulations, a comparison of ZSI and qZSI topologies with switched-inductor networks is conducted. The focus is on evaluating voltage boosting capabilities, voltage gain, and component count to identify the most effi...
This book addresses the increasing need for advanced control strategies in Distributed Generation (DG) systems by leveraging the capabilities of Z-source inverters (ZSIs) and quasi-Z-source inverters (qZSIs)-innovative topologies within the Impedance Source Inverter (ISI) family. The study is structured around four main objectives:Comparative Performance Analysis: Through detailed simulations, a comparison of ZSI and qZSI topologies with switched-inductor networks is conducted. The focus is on evaluating voltage boosting capabilities, voltage gain, and component count to identify the most efficient configuration.Review of Modulation Techniques: A comprehensive literature review investigates current modulation methods employed in ZSI/qZSI systems, providing a foundation for identifying performance bottlenecks and opportunities for innovation.Development of 3D Space Vector Modulation (3DZSVM): A novel 3D space vector modulation technique tailored for four-leg qZSI (4L-qZSI) inverters is proposed. This modulation enhances steady-state performance and minimizes harmonic distortion in unbalanced or nonlinear loads.Simplified Predictive Direct Power Control (PDPC).