Analysis Of Development of Traction Inverters and Control Strategies and Optimization of PWM And SVPWM

This article delves into the pivotal role of traction inverters in electrified transportation, highlighting their evolution, control strategies, and the challenges faced in optimizing their performance. Initially, it outlines the core principles of traction inverters, which convert direct current into alternating current to drive motors and discusses the historical progression from mechanical transmissions to advanced power electronics. The paper then explores two prevalent control methods, Pulse Width Modulation (PWM) and Space Vector Pulse Width Modulation (SVPWM), detailing their mechanisms and benefits. Moreover, it presents recent advancements like Discrete Waveform Optimization (DWO)-PWM and 240-degree clamped SVPWM, which have significantly reduced energy loss and electromagnetic interference. The article concludes by addressing the ongoing challenges in improving efficiency and reliability and underscores the importance of traction inverters in the broader context of sustainable transportation. The research presented herein is poised to contribute to the development of more efficient and reliable electric vehicles, thereby supporting the transition towards cleaner energy sources.