Abstract
This paper has focused on the novel space vector pulse-width modulation (SVPWM) strategy for the two-level three-phase inverter, which could eliminate the harmonics nearby pulse width modulation (PWM) frequency. Ear-piercing high-frequency electromagnetic noise from motor is common due to PWM technique. The proposed SVPWM is able to remove the high-frequency harmonics located nearby the PWM frequency and other odd multiples by changing the original switching states. The unpleasant acoustic noise could be removed with the novel strategy whose PWM frequency is selected near 10 kHz. By comparison, it is near 20 kHz for conventional SVPWM to achieve the similar performance. Therefore, the switching losses are significantly reduced using the novel method. Furthermore, the proposed technique neither changes the characteristics of the fundamental wave nor employs the additional circuits in the drive. At last, the effectiveness of proposed strategy is verified by simulation and experiment.
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