Grounding system studies for transformer-less collector feeder of full-scale power converters

Author

Sztykiel, Michal ; Teodorescu, Remus ; Munk-Nielsen, Stig ; Helle, Lars

Author_Institution

AALBORG Univ., Aalborg, Denmark

fYear

2013

fDate

2-6 Sept. 2013

Firstpage

1

Lastpage

10

Abstract

Following work examines current and voltage distribution during ground faults in cables of the transformer-less feeder system consisting of interconnected voltage source converters. Analysis is performed with regard to converter block operation, fault-ride-through requirements, cable design and different grounding schemes. Analysis show, that systems with effective grounded generator´s neutral in general provide best ground current and voltage distribution across cables.

Keywords

current distribution; earthing; power convertors; power distribution faults; power distribution protection; voltage distribution; cable design; converter block operation; current distribution; fault-ride-through requirements; full-scale power converters; ground faults; grounding system; interconnected voltage source converters; transformerless collector feeder; voltage distribution; Circuit faults; Generators; Grounding; Power cables; Substations; Voltage control; Wind turbines; AC-cable; Fault handling strategy; Fault ride-through; Grounding methods; Voltage Source Converter (VSC); Wind energy;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Applications (EPE), 2013 15th European Conference on

Conference_Location

Lille

Type

conf

DOI

10.1109/EPE.2013.6631939

Filename

6631939