An Electric Vehicle Drive System Utilizing a Z-Source Inverter for Permanent-magnet Synchronous Motors

Abstract

This paper presents a novel permanent-magnet synchronous motor (PMSM) drive system with bidirectional Z-By taking into account DC-link voltage boosting, a new vector-controlled scheme of the PMSM drive is developed as a zero-voltage source inverter (ZSI) for electric vehicles. Instead of using field weakening control to achieve a broad speed range in PMSM, ZSI characteristics are employed for DC-link voltage control in a single stage. Sabre simulations have been used to confirm the system's viability and efficiency. Synchronous motors with a permanent magnet, electric cars, Z-Source inverters, and voltage increases of 1 are the focus here.