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The sideband current harmonics generated by the voltage source inverter (VSI) and its related space vector pulse-width modulation (SVPWM) method are the main causes of the high-frequency vibro-acoustics responses in permanent magnet synchronous motor (PMSM). In this study, a novel hybrid carrier frequency modulation (HCFM) method based on the modified zero-vector action time of dynamic space is proposed to supress current harmonic, and reduce sideband vibro-acoustics. Firstly, since the zero-vector action time of different space angles can directly affect the current harmonic amplitude, the six traditional spaces are dynamically re-divided into twelve subspaces. Then, the carrier frequency is actively adjusted, according to based on the action-time variation tendency of the dynamic zero-vector in different subspaces for suppressing the current harmonic amplitude. The correlation of the current harmonic power spectral density of the HCFM method is deduced.