Analysis of Six-Step-Based Scalar Control Induction Motor for Electric Vehicle Application

Abstract

This paper investigates the application of a six-step voltage source inverter (VSI) with scalar control for driving an induction motor in an electric vehicle (EV). The study demonstrates the viability of this approach for EV propulsion due to its cost-effectiveness and simplicity. However, there are trade-offs. While the control scheme is straightforward and the VSI itself is robust, it offers less precise speed control compared to advanced techniques. Additionally, the VSI's on-off switching can cause torque ripple, resulting in vibrations and noise. Furthermore, efficiency and power factor suffer at low speeds, potentially reducing driving range and increasing battery strain.

Overall, the six-step VSI with scalar control presents a promising and cost-effective option for EVs, particularly in applications prioritizing affordability and simplicity. However, for applications demanding high-performance characteristics, further exploration of advanced control techniques might be necessary. Future research can explore methods to address limitations and optimize performance for specific EV requirements