Conference paper

A statistical approach for estimating the correlation between lightning and faults in power distribution systems

The paper deals with the subject of the source-identification of transient voltage disturbances in distribution system buses. In particular, a statistical procedure is proposed for the evaluation of the probability that a lightning flash detected by a Lightning Location System (LLS) could cause a fault and, therefore, relay interventions, generally associated with voltage dips. The proposed procedure is based on the coordinated use of the information provided by the LLS and the availability of an advanced simulation tool for the accurate simulation of lightninginduced voltages on complex power systems, namely the LIOV-EMTP code. The uncertainty levels of the stroke location and of the peak current estimations provided by the LLS are discussed and their influence on the lightning-fault correlation is analyzed. © Copyright KTH 2006.

    Keywords: Electromagnetic transients ; Lightning induced overvoltages ; Lightning location systems ; LIOV-EMTP code ; Monte Carlo method ; Power quality ; Coordination reactions ; Correlation methods ; Electric appliances ; Electric load distribution ; Electric power distribution ; Electric power systems ; Electric power transmission networks ; Estimation ; Lightning ; Lightning protection ; Local area networks ; Power transmission ; Probability ; Statistical methods ; Statistics ; Uncertainty analysis ; Accurate simulation ; Applied (CO) ; Complex power ; Distribution systems ; fault correlation ; international conferences ; Lightning flashes ; Peak currents ; Power distribution system (PDS) ; power systems ; Probabilistic methods ; simulation tools ; Statistical approaches ; transient voltages ; Voltage dip (voltage sag) ; Probability distributions


    CESI, via Rubattino 54, Milan, Italy Department of Electrical Engineering, University of Bologna, 40136 Bologna, Italy

    Conference code: 72449

    Export Date: 25 April 2012

    Source: Scopus

    Art. No.: 4202223

    Language of Original Document: English

    Correspondence Address: Borghetti, A.; Department of Electrical Engineering, University of Bologna, 40136 Bologna, Italy; email:

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    Record created on 2012-05-01, modified on 2017-01-14


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