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A novel three-phase series-connected modular multilevel converter in T configuration (TSC-MMC) for high voltage direct current transmission system is presented. The paper studies the dynamic mathematical model and the control scheme based on the proposed topology. Compared to conventional MMC, the number of IGBTs in TSC-MMC is reduced when withstanding the same dc voltage, which effectively decreases...
A novel high-power direct AC/AC modular multilevel converter topology in Y configuration, which is called Y-MMC, suitable for low frequency power transmission and distribution applications is proposed in this paper. The detailed topology and operation principles are addressed in this paper and the dynamic mathematical model of the Y-MMC system in dq coordinates is deduced. Corresponding control scheme...
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