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This document analyzes the behavior of HVDC systems using voltage source converters (VSC) during DC line-to-earth faults. It discusses two earthing configurations: 1) with the AC transformer earthed and DC link unearthed, and 2) with both the AC transformer and DC link unearthed. The document finds that line-to-earth faults can create potential earth loops within the system, leading to overcurrent and oscillations depending on the earthing configuration used. It analyzes the behavior of both two-level and m

Author

sno-kone

Language

EN