Infoscience

Conference paper

Lightning-correlated faults in power distribution networks

The paper deals with the correlation between lightning and distribution networks faults and/or voltage dips. In particular, the paper presents an application of a method proposed by the authors to correlate lightning events and relays operations based on the integrated use of: (i) data obtained from the Italian lightning location system (CESI-SIRF), (ii) data relevant to the Italian monitoring system of relay operation (CESI-SAM) and (iii) calculation results obtained by means of an advanced simulation tool for the accurate estimation of lightning-induced voltages on complex power networks (LIOV-EMTP). The correlation algorithm is able to take into account the uncertainty levels associated with the stroke location and peak current estimates provided by lightning location systems. The results obtained by means of LIOV-EMTP are shown to be of fundamental importance to achieve the appropriate estimation of the correlation of interest. A plus of the proposed algorithm is that it can make use, mostly during its validation/tuning phase, also of measured lightning-induced overvoltage waveforms recorded by means of a distributed monitoring system of voltage transients, which has been installed in a portion of the Italian distribution network. ©2007 IEEE.

    Keywords: Electromagnetic transients ; Lightning induced overvoltages ; Lightning location systems ; LIOV-EMTP code ; Monte Carlo method ; Power quality ; Boolean functions ; Chlorine compounds ; Computer networks ; Correlation methods ; Distributed parameter networks ; Distribution of goods ; Electric network analysis ; Electric power distribution ; Photoelectric relays ; Transients ; Uncertainty analysis ; Water distribution systems ; Lightning

    Note:

    Department of Electrical Engineering, University of Bologna, Italy CESI, Italy Swiss Federal Institute of Technology, Switzerland ENEL Distribuzione, Italy Wakayama National College of Technology, Japan, Conference code: 73346, Export Date: 25 April 2012, Source: Scopus, Art. 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    Record created on 2012-05-01, modified on 2016-08-09

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