Three-Level Reduced Switch AC/DC/AC Power Conversion System for High Voltage Electric Vehicles

Two of the main challenges recent electric vehicles (EVs) are charging time and high initial cost. To solve problem associated with long time, car manufacturers moving from 400 V battery EV (BEV) to 800 BEV, which enables utilization multi-level converters in applications. This paper presents a power conversion system consisting Vienna rectifier two/three level hybrid inverter as machine-side drive permanent-magnet synchronous motor (PMSM). The improves quality grid-side current provides regulated DC-link voltage. proposed inverter, known 10-switch offers output lower number active switches, making it compact cost-effective. field-oriented control (FOC), along SPWM modulation, is implemented system. A reliable cost-effective PMSM demands sensorless control; therefore, sliding mode observer (SMO) used estimate rotor position velocity. accuracy was proved through simulation results MATLAB/Simulink.