optimized Multi-vector Model Predictive Current Control of Dual Three-phase PMSM with Reduced Switching Frequency

In order to reduce the switching frequency of multi-vector model predictive control, this paper proposes a hybrid mode vector synthesis method. By comparing the spatial vectors of the base wave and harmonics, the virtual vector is synthesized to reduce the harmonic current. Some virtual vector switching frequencies are high, and voltage vector synthesis is used to replace them. Combined with zero vector, the duty cycle is calculated by beatless current control, and the switching frequency is optimized by pulse width modulation. The simulation results show that the proposed method effectively suppresses. It is proved that the switching frequency is effectively reduced while suppressing harmonic currents.