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A new modular multilevel converter (MMC) based static synchronous compensator (STATCOM) is proposed and hereafter called M-STATCOM. The new shunt compensator, features with the characteristics such as high modularity, availability, low generation of harmonics, etc., is well suitable for medium- or high-voltage utility grid without line-frequency transformers. M-STATCOM can not only be controlled in...
The floating dc capacitor voltage of modular multilevel converter based STATCOM (M-STATCOM) contains a large amount of low-order harmonic components, which produce current ripple in leg currents, and then greatly affect the output performance and safe operation of M-STATCOM. However, fewer papers have made explicit harmonic analysis on the floating capacitor voltage of M-STATCOM. Detailed floating...
Modular multilevel converter (MMC) is one of the excellent selections for high voltage and high power conversion applications without transformers. It provides the advantages such as high modularity, availability, low generation of harmonics, etc. However, the circulating current distorts the leg currents and increases the rated current of power devices, which further increases system cost. By controlling...
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