The 9th International Symposium on ADVANCED TOPICS IN ELECTRICAL ENGINEERING 2015

Papers Proceedings »

A new and efficient algorithm for short - circuit calculation in distribution networks with distributed generation

This paper presents a new algorithm for short-circuit currents calculation in distribution networks in which distributed generators are connected. The specifications of the IEC 60909 Standard are applied, in which the fault is replaced by an equivalent voltage source. The algorithm consists in two steps: a forward sweep, in which the aggregated impedances between each bus and the neutral point are calculated, and the backward sweep, in which the short-circuit currents flowing in the network branches are determined. The IEEE 33 bus test network is used for numerical calculations, considering 5 distributed generators.

Author(s):

Ion Tristiu    
University POLITEHNICA of Bucharest
Romania

Constantin Bulac    
University POLITEHNICA of Bucharest
Romania

Sorina Costinas    
University POLITEHNICA of Bucharest
Romania

Lucian Toma    
University POLITEHNICA of Bucharest
Romania

Alexandru Mandis    
University POLITEHNICA of Bucharest
Romania

 

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