Fault analysis in four-wire distribution networks
Nenhuma Miniatura disponível
Data
2005-11-01
Autores
Ciric, R. M.
Ochoa, L. F.
Padilla-Feltrin, A.
Nouri, H.
Título da Revista
ISSN da Revista
Título de Volume
Editor
Institute of Electrical and Electronics Engineers (IEEE)
Resumo
The neutral wire in most existing power flow and fault analysis software is usually merged into phase wires using Kron's reduction method. In some applications, such as fault analysis, fault location, power quality studies, safety analysis, loss analysis etc., knowledge of the neutral wire and ground currents and voltages could be of particular interest. A general short-circuit analysis algorithm for three-phase four-wire distribution networks, based on the hybrid compensation method, is presented. In this novel use of the technique, the neutral wire and assumed ground conductor are explicitly represented. A generalised fault analysis method is applied to the distribution network for conditions with and without embedded generation. Results obtained from several case studies on medium- and low-voltage test networks with unbalanced loads, for isolated and multi-grounded neutral scenarios, are presented and discussed. Simulation results show the effects of neutrals and system grounding on the operation of the distribution feeders.
Descrição
Palavras-chave
Como citar
Iee Proceedings-generation Transmission and Distribution. Hertford: IEE-inst Elec Eng, v. 152, n. 6, p. 977-982, 2005.