An optimized model predictive control strategy for open winding PMSM (OW-PMSM) considering dead-zone effect is proposed so as to improve the steady-state performance of OW-PMSM system with common dc bus in conventional single vector MPC (CSV-MPC). First, the impact of dead-zone voltage vector (DZVV) in CSV-MPC is analyzed and then the judgement process of DZVV is explained. Next, the optimized MPC strategy is proposed where the applied time of DZVV is variable which makes it different from CSV-MPC. Finally, the experimental results validate the effectiveness of the proposed method.

open-winding PMSM (OW-PMSM), dead-zone effect, dead-zone voltage vector (DZVV), MPC