This study proposes a modulation technique designed to suppress carrier harmonic components of the DC-link current in full-bridge inverters used for open-end winding machines. The proposed method employs two carrier waves, phase-shifted by 90°, and selects the carrier wave for each phase based on the phase angle of the armature voltage vector. Simulation and experimental results showed that the method reduced the second harmonic component at the carrier frequency of the DC-link current by 89.8 [%] compared with the sinusoidal pulse-width modulation method under the same experimental conditions. Furthermore, the impact on the phase currents supplied to the machines was analyzed. Experimental findings confirmed that the proposed method minimally affected components at the fundamental frequency.
