Enhanced Modular Multilevel Converter for MVDC and HVDC Applications

2022 30th Southern African Universities Power Engineering Conference (SAUPEC)（2022）

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摘要

This paper proposes an enhanced modular multilevel converter (EMMC) as an alternative to the conventional half-bridge modular multilevel converter (HB-MMC) with reduced number of cells, particularly to improve the quality of the ac and dc waveforms. Each EMMC arm consists of HV and LV half and full-bridge chain-links (HB-CL and FB-CL). The EMMC uses the HB-CLs to synthesize fundamental voltage usi...

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关键词

Multilevel converters,Power engineering,HVDC transmission,Power quality,Modulation,Voltage,Harmonic analysis

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