NDLI: Use of lightning location systems data in integrated systems for power quality monitoring

Content Provider	IEEE Xplore Digital Library
Author	Nucci, C.A. Paolone, M. Bernardi, M.
Copyright Year	2002
Description	Author affiliation: Dept. of Electr. Eng., Bologna Univ., Italy (Nucci, C.A.; Paolone, M.)
Abstract	Voltage sags are one of major concerns in power quality, as they cause serious malfunction of a large number of apparatuses. There are a number of reasons for voltage sags in distribution networks: there is some evidence, however, that in electrical systems located in regions with high value of isokeraunic level, lightning can cause the majority of voltage sags. Data from lightning location systems, which provide an estimation of both lightning flash location and return-stroke current amplitude, can then be used to understand whether lightning is indeed the real cause of circuit breaker operation during thunderstorms-which means, in turn, of voltage sags-or not. Due to the complexity of the problem, the information coming from LLS (lighting location and estimate of lighting current amplitude) are, in general, not enough to infer the origin for voltage sags. It is necessary to suitably integrate them with data from system monitoring, e.g. relevant to the intervention of circuit breakers in primary substations, and with simulation results from of accurate models for computing lighting-induced voltages on complex power networks.
Starting Page	552
Ending Page	556
File Size	557769
Page Count	5
File Format	PDF
ISBN	0780375254
DOI	10.1109/TDC.2002.1178458
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-10-06
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Voltage fluctuations Substations Circuit breakers Computational modeling Circuit simulation Power quality Lightning Amplitude estimation Power system modeling Monitoring
Content Type	Text
Resource Type	Article

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