Performance Analysis of Sinusoidal and Space Vector in Inverter Modulation of FOC-Based PMSM Drives for Electric Vehicle under Constant and Dynamic Speed Conditions

This paper investigates the performance of two inverter modulation methods, sinusoidal pulse width modulation (SPWM) and space vector pulse width modulation (SVPWM), on field-oriented control (FOC)-based permanent magnet synchronous motor (PMSM) drives for electric vehicle (EV) applications. The objective is to analyze the impact of these modulation strategies on various performance parameters, including torque, input power, output power, DC bus utilization, phase current consumption, and phase current total harmonic distortion (THD) under constant speed operation and drive cycle operation. The results indicate that SVPWM modulation offers advantages over SPWM modulation, such as 1.4-8 ms faster in speed settling time, consuming 1-9 mA lower in phase current with 0.348-1.670 % lower in phase current THD, having 0.011-0.318 N.m. lower in ripple torque, consuming 19.82 - 601 W lower in input power, and having a higher DC bus utilization factor. These findings provide valuable insights into optimizing the performance of PMSM drives and serve as a guide for the development of efficient and sustainable electric vehicle systems.