Deadbeat Predictive Current Control for High-Speed Permanent Magnet Synchronous Machine Drives With Low Switching-To-Fundamental Frequency Ratios

This article analyzes the conventional dq -frame model-based deadbeat predictive current control (DBPCC) methods for high-speed permanent magnet synchronous machine (PMSM) drives with low switching-to-fundamental frequency ratios (SFRs). It shows that state-of-the-art compensation schemes of delay and rotor movement effect can improve performance but problem still arises at very high speeds SFRs. Therefore, this presents a novel DBPCC method PMSM drives. The proposed tracks stator flux vector in stationary frame to achieve -axis currents. are both precisely considered. Consequently, stability be guaranteed speeds. Extensive simulations experiments have been performed on prototype drive. effectiveness its superiorities against field-oriented DBPCCs all demonstrated.