Title :
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
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;
Conference_Titel :
Power Electronics and Applications (EPE), 2013 15th European Conference on
Conference_Location :
Lille
DOI :
10.1109/EPE.2013.6631939
