Triple-Voltage-Vector Model-Free Predictive Current Control for Four-Switch Three-Phase Inverter-Fed SPMSM Based on Discrete-Space-Vector Modulation

The four-switch three-phase (FSTP) inverters are known for their cost-effective advantages and minimal switching losses. However, such inverter topology’s progress is lagging due to control constraints requirements, including voltage vector limitations parameter perturbations. To overcome the issue, this paper proposes a triple-voltage-vector model-free predictive current (TVV-MFPCC) FSTP inverter-fed surface permanent magnet synchronous motor (SPMSM) drives. proposed TVV-MFPCC uses principle of discrete-space-vector modulation (DSVM) increase selections. Three primary vectors, either same or distinct, linearly combined yield synthesized vectors. A redundant reduction scheme also introduced lessen calculations by optimally reducing candidate vectors sixteen equivalent hybrid modes. improve prediction accuracy, performs three different readings difference in each sampling period. Experiments using TMS320F28379D microcontroller conducted compare performance against conventional MFPCC (C-MFPCC) validate scheme.