A Comprehensive Review of Reduced Switch-Count Three-Phase Inverters in EV, Industrial, and Renewable Energy Applications.

Abstract

This review paper explores the diverse applications of four-switch three-phase (FSTP) inverters, with a primary focus on renewable energy systems, electric vehicles, and industrial motor drives. FSTP inverters are gaining increasing attention due to their reduced component count, lower cost, and enhanced reliability compared to traditional six-switch inverters. The paper provides an in-depth analysis of the advantages that FSTP inverters offer, including simpler circuitry, reduced switching losses, and cost efficiency, making them attractive for a range of applications. Additionally, the challenges associated with FSTP inverters, such as limitations in voltage utilization and harmonic distortion, are discussed. The paper also highlights recent advancements in control strategies and power management techniques that have improved the performance and adaptability of FSTP inverters in modern systems. Through this review, the paper emphasizes the growing role of FSTP inverters in facilitating the transition toward more efficient and cost-effective power conversion in renewable energy sources, electric vehicle powertrains, and industrial motor applications, while also pointing to future research directions for overcoming current limitations.