“20th PSCC 2018 papers submission and review platform

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Determination of Transient Overvoltages in a Bipolar MMC-HVDC Link with Metallic Return

This paper analyses transient system behaviour of a high-voltage direct current (HVDC) transmission link comprising mixed overhead-cable lines during IGBT blocking subsequent to a station internal dc fault. Based on time-domain simulations using PSCAD/EMTDC, occurring converter cell overvoltages as well as voltage stresses at the dc cable terminations are evaluated. The electromagnetic transients (EMT) study is performed for a bipolar MMC-HVDC link equipped with full-bridge (FB) submodules at various fault locations, fault impedances and pre-fault load flow set points.

Author(s):

Max Goertz    
Karlsruhe Insititute of Technology
Germany

Simon Wenig    
Karlsruhe Insititute of Technology
Germany

Michael Suriyah    
Karlsruhe Insititute of Technology
Germany

Thomas Leibfried    
Karlsruhe Insititute of Technology
Germany

 

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