2014
DOI: 10.1109/itec-ap.2014.6941256
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Cong Zhao, Zixin Li, Yaohua Li, Ping Wang, Xing Zhang

Abstract: Modular Multilevel Converter(MMC) has the advantages of high quality output voltage waveform and the total harmonic distortion(THD) of voltage and current is small. Apart from these features, its active power and reactive power can be controlled independently and its module cascaded design enhance the robustness of the converter. Hence, this topology is being increasingly applied to the field of flexible High Voltage Direct Current(HVDC). But there is a serious problem after the MMC's charging process has bee…

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