A Generalized DC Asymmetrical Fault Analysis Method for MMC-HVDC Grids Considering Metallic Return Conductors

Pole-to-ground and pole-to-metallic return conductor (MRC) short circuits are typical dc asymmetrical faults in modular multilevel converter based high voltage direct current (MMC-HVDC) grid. For secure operation, comprehensive analysis of the dc asymmetrical faults is urgently required. However, in...

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Veröffentlicht in:	IEEE transactions on power delivery 2024-10, Vol.39 (5), p.2568-2579
Hauptverfasser:	He, Zhen, Hu, Jiabing, Lin, Lei, Zeng, Pingliang, Hang, Lijun
Format:	Artikel
Sprache:	eng
Schlagworte:	analytical expressions Circuit faults DC asymmetrical fault DC power transmission Fault currents HVDC transmission Inductors Mathematical models metallic return conductor (MRC) MMC-HVDC grid Multilevel converters Power transmission lines Solid modeling symmetrical component decomposition Voltage control
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