Abstract:This paper presents a modified sinusoidal pulsewidth modulation (SPWM) switching technique in threephase ac-dc buck converter with new modulation strategy. The modulation strategy used two reference signals (0 • -60 • and 120 • -180 • sine wave) and one type of carrier signal, instead of two types of carrier signal to generate pulse-width modulation signals. A conventional 6-switch three-phase acdc buck converter is extended by comprising four diodes in each switch to achieve bidirectional power flow capabilit… Show more
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