Dual-frequency SVPWM strategy for five-phase voltage source inverter

This paper proposes a novel dual-frequency space vector pulse width modulation strategy for the five-phase voltage source inverter, which contains fundamental frequency and third harmonic frequency. The proposed strategy has the advantages of half-wave symmetry, outputting dual frequency voltages and currents, reducing the switching times, and balancing the switching times of top device and bottom device. Based on the fast fours transformer (FFT) analysis, the third harmonic components are trade with the command value. It indicates that the two components (fundamental and third) are regulated greatly by this proposed strategy. The principle and performance of this strategy are verified by the MATLAB simulation finally.