Research: Performance Evaluation of SiC and GaN-Based Power Converters for Ultra-Fast E...

Research question: How do silicon carbide (SiC) and gallium nitride (GaN) wide-bandgap power converters compare in efficiency, thermal management, and grid impact for ultra-fast EV charging stations?

Background & Motivation: The rapid growth of electric vehicles (EVs) has intensified the demand for ultra-fast charging solutions, which require advanced power electronics to ensure high efficiency and reliability. Wide-bandgap semiconductors such as silicon carbide (SiC) and gallium nitride (GaN) have emerged as promising candidates for next-generation power converters due to their superior switching characteristics, higher breakdown voltages, and improved thermal performance compared to traditional silicon devices.

Research Gap: While recent literature highlights the theoretical benefits of SiC and GaN devices in power electronics, comparative studies focusing on their real-world performance, grid interaction, and system-level trade-offs in the specific context of fast EV charging infrastructure are limited.

Approach & Expected Contribution: This project will conduct a systematic literature review, develop analytical models, and perform simulation-based experiments to compare the efficiency, thermal behavior, and grid-side effects of SiC and GaN-based power converter topologies in fast-charging scenarios. The study will utilize platforms such as MATLAB/Simulink and PLECS for modeling and simulation, with experimental validation using available laboratory converters if possible. The findings will clarify device-level and system-level trade-offs, offering guidance for charger designers and grid operators.

Significance: As ultra-fast EV charging becomes essential for widespread EV adoption, optimizing power converter technology is critical for sustainable, reliable, and cost-effective charging networks. This research directly supports the advancement of smart grids and renewable integration by informing the selection of power electronic devices for future energy systems.