Direct Torque and Direct Flux Model Predictive Control of Five-Phase Permanent Magnet Synchronous Motor Using Four-Leg Inverters

The paper presents a cost-effective four-leg inverter designed for controlling five-phase permanent magnet synchronous motors (PMSMs). One of the five phases of the PMSM is connected to the midpoint of the DC voltage sources. The paper includes the mathematical model of the four-leg inverter, as well as the discrete model of the five-phase PMSM. Additionally, it introduces model predictive direct torque control and model predictive direct flux control for motor speed regulation. The effectiveness of the proposed drive and control method is demonstrated via simulation results.