2014 IEEE Conference and Expo Transportation Electrification Asia-Pacific (ITEC Asia-Pacific) 2014
DOI: 10.1109/itec-ap.2014.6941044
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Abstract: The modular multilevel converter (MMC) is attractive for high-power applications because of the advantages of its high modularity and high power quality. This paper analyze the low and high frequency circulating current in MMC based on the phase-shifted carrier-based PWM(PSC-PWM) scheme. It can draw such conclusion that the DC component of circulating current can control the total sub-module capacitors voltage in one phase leg, while the fundamental frequency component can control the sub-module capacitors vol… Show more

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